equipment installation manual - dac...

Equipment Installation Manual

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EQUIPMENT INSTALLATION MANUAL

For the

GDC31 ROLL STEERING CONVERTER

P/N 1049-4000-XX-001( )

Rev Y April 5, 2017

DAC International

6702 McNeil Drive

Austin, TX 78729

Copyright 2017, DAC International. All rights reserved.

bhatcher

RELEASED


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RECORD OF REVISIONS

REV DESCRIPTION DATE APPROVED

IR INITIAL RELEASE E266 4-5-04 LW

A Correct P/N of mating connector E269 4/8/04 LW

B CHANGED BREAKER TO 2 AMPS E272-04 4/19/04 LW

C Reduced 28V and 14V install kits into one universal kit

and added instructions for configuration. Added wiring

diagram for Bonanza A-36. E306

7/26/04 LW

D Omit approval pending E321 9/17/04 LW

E Add numerous wiring diagrams E327 10/22/04 LW

F Add additional wiring diagrams, correct table 4 E389 3/30/05 LW

G Add lighting bus circuit diagram to all wiring diagrams.

Omit jumper on drawings Fig. 9 & 11.

Add note to installation section, page 16. E415

5/20/05 CC

H Add Reference page for lighting connections and correct

drawings. Add KLN-94 incompatibility stmt to Operation

Overview and Appendix A. Correct pin references on

ARINC HSI drawings. Remove Isolation Coupler from

Fig. 10. Add –03 model & update all applicable sections

and drawings. Add Isolation Coupler to Figure 4 drawing.

Add Follow-on Installation Data form and instructions.

E432

10/5/05 LW

I Add FD112 and AP107 drawing. E461

Delete 1049-4200-10 kit information.

Edit drawings to reflect –03 vs –01 differences

11/16/05 CC

J Correct typo on Figure 3 ARINC HSI with Century IV

drawing; Add Isolation Coupler requirement statement to

“OPTIONAL EQUIPMENT” section;

2/21/06 LW

K Add various drawings; minor changes on misc drawings;

added Appendix D, GPS Receiver interconnect to

RS232/ARINC 429; Added STC Permission Stmt E645

12/12/06 LW

L Added various drawings; Added gain jumper flag note to

various King autopilot drawings; Corrected pin-out on

6/8/07 LW


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various STEC drawings; Add note to Appendix C. Add

Note: “This A/P is not STC’d” on all relevant drwgs.

Fig 2 – Add Note:

Fig 4 – Remove AP-Offset line

– Add jumper b/t pin 10 & 11 – GainSel 1

– Add pin 16 to J2 – 400hz Rtn

Fig 8 – Add lines b/t DG and Iso Coupler and pin info for

52D54 Exc

Fig 19 – Change jumper for GainSel2 to dotted line and

add flag note: “If turn is sluggish, install this jumper”.

Fig 20 – Add line between pin 13 of AP Comp and pin 15

of GDC31

– Add KCP 299 pins and dotted lines

Fig 26 – Add Iso Coupler to prevent voltage spike to Roll

Computer when setting breaker.

Fig 28 – Add STEC 30 Pinout E729

M Added various drawings; Revised website link on pg 26;

Added KLN-89A to Operation Note Appendix A Note as

non-compatible with the GDC31.

Fig 7 - Revised wiring illustrations.

Fig 13 - Add 5kz flag note.

Fig 20 - Remove Type Sel jumper & added jumper to

Phase Sel.

Fig 31 - Add Type Sel jumper.

Fig 32 – Add Phase Sel.

12/06/07 LW

N Added paragraph to PMA Section, pg 8.

Removed Installation Manual from kit part list, pg 9.

Added paragraph to Installation Section, pg 16.

Added paragraph to Environmental Section, pg 29.

Revised Figure 2, Pg 41, Relay Interconnect Diagram.

Fig 17, Pg 60 - Add KC-295 computer for KFC200

autopilot & ground shield at pin 6 & 15 of GDC31.

Fig 23, Pg 66 – Removed jumper from pins 11 & 23.

Removed non-STC’d drawings

Added additional wiring diagrams (Fig 2, 14, 16, 18, 19,

25, 26, 29, 32, 33, & 34). E1286

08/01/2011 BH

P Added ARC800 with IG-895A / NSD-360 / NSD-1000

drawing & Century 2000 drawings. E1299

08/15/2011 BH


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R Added KAP150 with KI525A drawing E1350 12/08/2011 BH

S Delete S-TEC 50/55/60/65 (DC) with S-TEC 6406.

Revised S-TEC 50 (AC) with 6406 HSI drawing to include

S-TEC 55/60/65 autopilots. Added STC Pending

statement to ARC300/800, Century 2000 and KAP 140

drawings. E1735

10/28/2013 BH

T Corrected EXC pin reference on SN3500 P2 on Figure 13

drawing E1750.

12/16/2013 BH

U Revised Century II or III with 52D54 drawing to change

pins D & E at CD33 (Pigtail) from C & F at CD33 (Fixed).

Changed labels to DG Exc 5 KHz from Roll Exc 5 KHz.

Reworded flag notes for clarity on all drawings. Added

flag note to ground all shielded wiring on drawings in Fig

8-12, 28, 38, 39, 41 & 42. Added drawing for KCS55

System with KG-102A & SN3308 / SN3500. Removed

ARC 300, ARC 800, Century 2000 & KAP140 drawings.

001A software version not supported.

E1856

05/22/2015 BH

V Reworded “Required Equipment” header and first sentence

on page 10. Reworded last sentence in “Optional

Equipment” paragraph on page 11. Added ARC 300 (Fig

2-3), ARC 800 (Fig 7), Century 2000 (Fig 8-11) and KAP

140 (fig 21-22) drawings E1876

10/06/2015 BH

W Edited jumper on drawing KING KAP 140 w/ KI-525A at

GDC31 pin 11 to pin 21 and flag notes relative to change.

Inserted Century II/III with NSD-360A / NSD-1000 to

1C388-2 Radio Coupler drawing.

Renumbered pages. Edited various drawing notes.

E1891

03/10/16 BH

X Remove page 29 ( GDC31 STC permission statement)

renumber pages E1893

03/22/16 BH

Y Add Collins AP-105 drawing 04/05/17 BH


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Table of Contents

RECORD OF REVISIONS ........................................................................................................................... 2 INTRODUCTION: ........................................................................................................................................ 8

DESCRIPTION: ............................................................................................................................................. 8 PART NUMBERS: ........................................................................................................................................ 9 REGULATORY COMPLIANCE:................................................................................................................. 9

Software ..................................................................................................................................................... 9 PMA ........................................................................................................................................................... 9

Environmental ............................................................................................................................................ 9 REQUIRED EQUIPMENT ......................................................................................................................... 10 OPTIONAL EQUIPMENT .......................................................................................................................... 11

SPECIFICATIONS: ..................................................................................................................................... 12 Physical: ................................................................................................................................................... 12 Electrical: ................................................................................................................................................. 12

Serial Data Input: ..................................................................................................................................... 12 ARINC 429 Input: (-03 Only) ................................................................................................................. 13

Roll Sum Steering Output: ....................................................................................................................... 13 Reference Inputs: ..................................................................................................................................... 13 AP Offset Input: ....................................................................................................................................... 14

Annunciator Output:................................................................................................................................. 14 Flag Input: ................................................................................................................................................ 14

Certification: ............................................................................................................................................ 14 Reliability: ................................................................................................................................................ 14

OPERATION: .............................................................................................................................................. 15

Overview .................................................................................................................................................. 15

Analog Output .......................................................................................................................................... 15 Reference Inputs (Excitation) .................................................................................................................. 15 ARINC 429 Input ..................................................................................................................................... 15

GPS Mode Annunciator Control .............................................................................................................. 16 Super Flag Input ....................................................................................................................................... 16

INSTALLATION ......................................................................................................................................... 17 Material Not Supplied .............................................................................................................................. 17

Special Tools ............................................................................................................................................ 17 Mounting Considerations ......................................................................................................................... 18 Wiring Considerations ............................................................................................................................. 18 Pre Modification Planning ....................................................................................................................... 19 Equipment Interfaces ............................................................................................................................... 19

Installation Summary ............................................................................................................................... 19 Steering Output Scale Factor Determination ........................................................................................... 20

Configuration Pins ................................................................................................................................... 21 Gain Settings Using Ref 1 input J1-18 ..................................................................................................... 21 Gain Settings Using Ref 2 input J1-6 ....................................................................................................... 21


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Phase Selection ........................................................................................................................................ 22 Position/Rate Selection ............................................................................................................................ 23 Baud Rate Selection ................................................................................................................................. 23 GPS Receiver Setup ................................................................................................................................. 23

REMOVAL AND REPLACEMENT .......................................................................................................... 24 Removal, GDC31 ..................................................................................................................................... 24 Replacement, GDC31 .............................................................................................................................. 24 Removal, Mode Annunciator ................................................................................................................... 24 Replacement, Mode Annunciator ............................................................................................................ 24

EQUIPMENT CHECKOUT ........................................................................................................................ 25 Ground Functional Test............................................................................................................................ 25 Flight Functional Test .............................................................................................................................. 25

CONTINUED AIRWORTHINESS: ............................................................................................................ 27 INSTRUCTIONS TO COMPLETE FOLLOW-ON INSTALLATION DATA FORM: ............................ 27 FOLLOW-ON INSTALLATION DATA FORM ....................................................................................... 28

CONNECTOR PIN OUT: (1049-4000-03) ................................................................................................ 30 OUTLINE DRAWINGS .............................................................................................................................. 31

GDC31 Outline ........................................................................................................................................ 31 Switch / Annunciator Outline .................................................................................................................. 32 Isolation Coupler Outline ......................................................................................................................... 33

SLIDE LATCH ASSEMBLY ...................................................................................................................... 34 APPENDIX A – RS232 AVIATION FORMAT ......................................................................................... 35

APPENDIX B – ARINC 429 INPUT .......................................................................................................... 37 Label 121 - Bank Angle Command ......................................................................................................... 37

APPENDIX C – GPS RECEIVER INTERCONNECT ............................................................................... 38

Figure 1 RS232 Interconnect Diagram .................................................................................................. 38

Figure 2 ARINC 429 Interconnect Diagram .......................................................................................... 38 APPENDIX D - OPTIONAL LIGHTING CONTROLS ............................................................................ 39

Figure 1 Day / Night Switch Interconnect Diagram .............................................................................. 39

Figure 2 Relay Interconnect Diagram .................................................................................................... 39 APPENDIX E - TYPICAL INTERCONNECT ........................................................................................... 40

Figure 1 - TYPICAL INTERCONNECT................................................................................................ 41 Figure 2 - ARC 300A with G502A ......................................................................................................... 42

Figure 3 - ARC 300A (DC) with NSD-360 ............................................................................................ 43 Figure 4 - ARC 400/S530A with PN 101 ............................................................................................... 44 Figure 5 - ARC 400B/CA-550A/FD (10VAC) with G502A .................................................................. 45 Figure 6 - ARC 400B/CA-550A/FD (DC) with NSD-360 ..................................................................... 46 Figure 7 - ARC 800B/CA-550A/FD with IG-895A / NSD-360 / NSD-1000 ......................................... 47

Figure 8 - CENTURY 2000 with 52D254 .............................................................................................. 48 Figure 9 - CENTURY 2000 with FD112V ............................................................................................. 49

Figure 10 - CENTURY 2000 with IG-832A / NSD-360 / NSD-1000 .................................................... 50 Figure 11 - CENTURY 2000 with KI-525A ........................................................................................... 51 Figure 12 - CENTURY II or III with 52D54 to 1C388/M/P Radio Coupler .......................................... 52


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Figure 13 - CENTURY II / III with 4000C DG / 52D54 to 1C385 / 1D395 Console / Amp ................. 53 Figure 14 - CENTURY II / III with ARINC HSI to 1C385 / 1D395 Console/Amp .............................. 54 Figure 15 - CENTURY II / III with IN-831A HSI to 1C385 / 1D395 CONSOLE/AMP ...................... 55 Figure 16 - CENTURY II / III with NSD-360A / NSD-1000 to 1C388-2 Radio Coupler ..................... 56

Figure 17 - CENTURY II / III with NSD-360A / NSD-1000 to 1C385 / 1D395 CONSOLE/AMP ...... 57 Figure 18 - CENTURY III with SN3308 / SN3500 to 1C388-2 Radio Coupler .................................... 58 Figure 19 - CENTURY IV with ARINC HSI ......................................................................................... 59 Figure 20 - CENTURY IV with IG-832A / NSD-360 / NSD-1000........................................................ 60 Figure 21 - COLLINS AP105 with 331A-6R ......................................................................................... 61

Figure 22 - COLLINS AP106 with FD112C/V ...................................................................................... 62 Figure 23 - KING KAP 140 with 4000C-15 DG .................................................................................... 63 Figure 24 - KING KAP 140 with KI-525A ............................................................................................ 64

Figure 25 - KING KCS55 SYSTEM with KI-525 / 525A and KA-52 / KA-57 ..................................... 65 Figure 26 - KING KCS55 SYSTEM with KG-102A & SN3308 / SN3500 HSI ................................... 66 Figure 27 - KING KFC 150 with EFIS 50 .............................................................................................. 67

Figure 28 - KING KFC 150 with KI-525A ............................................................................................. 68 Figure 29 - KING KFC 150 with SN3308 / SN3500 & KG-102A ......................................................... 69

Figure 30 - KING KFC 200 / 300 Series with KI-525A ......................................................................... 70 Figure 31 - KING KFC 200 with KA-118 & KPI-550A ........................................................................ 71 Figure 32 - KING KFC 200 with KI-825 HSI ........................................................................................ 72

Figure 33 - KING KFC 200 / 300 Series with KPI-552 ......................................................................... 73 Figure 34 - KING KFC 200 Series with SN3308 / SN3500 & KG-102A .............................................. 74

Figure 35 - KING KFC 200 Series with SN3308 / SN3500 – without DG ............................................ 75 Figure 36 - KING KFC 325 with EFIS 50 .............................................................................................. 76 Figure 37 - S-TEC 50/55/60/65 (DC) with NSD-360A / NSD-1000 ...................................................... 77

Figure 38 - S-TEC 50/55/55X/60/65 (AC) with 6406 HSI ..................................................................... 78

Figure 39 - S-TEC 50/55/60 with KI-525A ............................................................................................ 79 Figure 40 - S-TEC 50/55/60/65 with ARINC HSI .................................................................................. 80 Figure 41 - S-TEC 50/60/65 (AC) with 1U262-006-45 DG .................................................................. 81

Figure 42 - S-TEC 50/60/65 (AC) with 52D54 DG ................................................................................ 82 Figure 43 - S-TEC 55 (DC) with 52D54DG ........................................................................................... 83 Figure 44 - S-TEC 55/65 (AC) with 6443 HSI ....................................................................................... 84 Figure 45 - S-TEC 60 with G502A HSI .................................................................................................. 85


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INTRODUCTION:

This Installation Manual contains installation data, specifications and Instructions for Continued

Airworthiness for the DAC International Model GDC31 Roll Steering Converter, Part Number 1049-4000-

XX-001( ). Check the DAC International website www.dacint.com/gdc31 regularly for updates to this

manual or for additional information.

DESCRIPTION:

The GDC31 Roll Steering Converter with software version 001A is designed to receive RS232 or RS422

serial data from a GPS Navigation System to produce both an analog Roll Sum Steering (RSS) signal and

ARINC 429 labels bank angle command and ground speed. The GDC31 Roll Steering Converter with

software version 001B is designed to receive RS232 or RS422 serial data or ARINC 429 Label 121 from a

GPS Navigation System to produce an analog Roll Sum Steering (RSS) signal.

The GDC31 output signal connects to the heading error input of the aircraft’s existing autopilot. The

GDC31 mimics the heading error signal of the aircraft’s installed HSI or DG. The GDC31 does not reduce

or otherwise alter any existing safety features of the autopilot, such as bank limiting, rate limiting and

protection from a hard over. The GDC31 provides lateral (roll) data only (no pitch data is supplied by the

GDC31).

The pilot simply selects between heading mode and GPS mode using the supplied switch / annunciator. In

heading mode, the autopilot operates as always, tracking the heading bug of the HSI or DG. In GPS mode,

the GDC31 RSS signal drives the autopilot’s heading channel. The GDC31 calculates the correct course

intercept angle from the data supplied by the GPS, smoothly guiding the aircraft onto the course. The

GDC31 then holds the aircraft on the selected course. If the GPS is programmed with Flight Plan data, the

GDC31 will calculate the new intercept angle at each waypoint change, intercepting and holding the new

course without pilot intervention.

The GDC31 is designed to operate with both rate based and position based autopilots.

SERIAL / FLAG

HDG ERROR

ARINC 429 IN

GPS

HSI / CDI

(-03 Only)

AUTOPILOT

GDC31 RSC

ROLL STEERING

HDG

GPS

ANNUN / SW

HDG ERROR

http://www.dacint.com/


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PART NUMBERS:

The GDC31 Data Converter is available under the following part number:

1049-4000-03-001B GDC31 Roll Steering Converter, with RS232 and ARINC 429

Auto-Baud Detect Input (Recommended for all new

installations)

Software part number, where ( ) contains the number zero for initial release, or any

letter, A – Z to denote a minor change.

The following GDC31 version is no longer available and no longer supported.

1049-4000-01-001A GDC31 Roll Steering Converter, with RS232 Input and

ARINC 429 Low Speed Output

REGULATORY COMPLIANCE:

Software

The Model GDC31 software was developed in accordance with RTCA/DO-178B to criticality level C.

PMA

This manual contains FAA Approved installation instructions for installation of the DAC International

model GDC31 unit under the GDC31 AML STC for use in those Part 23 Class I, II, and III aircraft (as

defined in AC 23.1309-1C) listed on the GDC31 AML. Installation of the GDC31 into US-registered

14CFR Part 23 Class I, II or III aircraft not included in the AML, Part 23 Class IV aircraft, any part 25, 27,

or 29 aircraft, or non-U.S. registered aircraft requires separate airworthiness approval.

Environmental

The Model GDC31 meets the DO-160D environmental categories listed later in this manual.

The performance and environmental limitations under which the GDC31 was granted PMA are described

in this manual. It is the responsibility of the facility installing this article whether on or within a specific

type or class of aircraft to determine that the aircraft installation conditions are within the equipment

limitations. The article may be installed only if performed under 14 CFR Part 43 or the applicable

airworthiness requirements.


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REQUIRED EQUIPMENT

Each Roll Steering System requires the following items:

Part Number Description Qty

1049-4000-03-001B GDC31 Roll Steering Converter, RS232 & ARINC 429 Auto-

Baud Detect Input

1

1049-4200-20 Connector Kit, GDC31 Data Converter 1

1049-4201-20 Annunciator Kit, GDC31 Data Converter 14V/28V 1

NOTE: The Annunciator / Switch, P10280, comes pre-configured for 28V operation. For 14V operation,

see the section titled INSTALLATION - Wiring Considerations.

Complete installation kits are available under kit part numbers 1049-4200-20 and 1049-4201-20.

Individual pieces are available under the part numbers shown. Contact DAC International sales to place

orders.


1049-4200-20 Connector Kit, GDC31 Data Converter

M24308/2-3F Connector, Receptacle, 25 pin D-Sub 1

M39029/63-368 Socket, Crimp Style, female 25

P10219 Slide Latch Kit, shell size 3 1

P10220 Backshell, 25-Pin D-Sub 1

1049-4201-20 Annunciator Kit, GDC31 Data Converter

P10280 Mode Annunciator / Switch with 28V lamps 1

P10301 Lamp, 14V 4


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OPTIONAL EQUIPMENT

Certain installations require the use of an Isolation Coupler assembly. Isolation Coupler is used to

transformer isolate the GDC31 reference input (excitation) and/or analog (heading error signal) output for

installations where these signals are not referenced to airframe ground. Refer to the applicable installation

drawings later in this manual for usage. This assembly is sold separately and requires a separate

installation kit.

Part Number Description

1049-4801-01 Isolation Coupler

1049-4200-50 Installation Kit, Isolation Coupler

Complete installation kits are available separately under kit part number 1049-4200-50. Individual pieces

are available under the part numbers shown. Contact DAC International sales to place orders.


1049-4200-50 Installation Kit, Isolation Coupler

M24308/2-2F Connector, Receptacle, 15 pin D-Sub 1

M39029/63-368 Socket, Crimp Style, female 15

P10053 Slide Latch Kit 1

P10067 Backshell, 15-Pin D-Sub 1


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SPECIFICATIONS:

Physical:

The GDC31 attaches to the airframe via four mounting holes. See the paragraph titled GDC31 Outline

Drawing for further details.

RSC LRU

Height .................................................1.25”

Width..................................................5.22” (Includes mounting flange)

Depth ..................................................3.54”

Weight ................................................0.4 lb.

The Isolation Coupler (optional) attaches to the airframe via four mounting holes. See the paragraph titled

Isolation Coupler Outline Drawing for further details.

Height .................................................1.25 in

Width..................................................4.5 in (Includes mounting flange)

Depth ..................................................2.41 in”

Weight ................................................0.2 lb.

Annunciator

Height .................................................0.753”

Width..................................................0.753” (Includes mounting flange)

Depth ..................................................1.99”

Weight ................................................0.05 lb.

Electrical:

Input Voltage .....................................14 / 28 VDC (10Vdc – 32Vdc operational)

Input Current ......................................0.1 Amp maximum at 28 VDC

Annunciator lamp current ..................0.04 Amp at 28 VDC, 0.08 Amp at 14 VDC

Serial Data Input:

Format ................................................RS232 or RS422 serial data in RNAV 0, RNAV 1, King 0 or

King 1 format from a GPS navigation system

Baud Rate ...........................................Selectable (4800, 9600)


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ARINC 429 Input: (-03 Only)

Labels.................................................Bank Angle Command, Label 121

Baud Rate ..........................................Auto-Baud Detect

Roll Sum Steering Output:

Description .........................................Analog bank angle command with program pin selectable scale

factors to match most autopilot input levels. Program pin

selection for position based or rate based output. Program pin

selectable phasing.

Load ...................................................1K

Reference Inputs:

General Description ...........................AC or DC excitation used to excite the heading bug on the HSI

or DG. The GDC31 uses the reference input to produce a

steering signal with correct phase and amplitude characteristics.

Two reference inputs are provided. Use only one, depending on

the autopilot type. The unused input will be a no-connect. See

typical interconnect diagrams later in this manual.

AP Ref 1 .............................................Reference voltage input for use with gain settings found in Table

1.

Maximum Input Level ..................42 volts peak (30Vrms)

Load: ...........................................60K

AP Ref 2 .............................................Reference voltage input for use with gain settings found in Table

2.

Maximum Input Level ..................15 volts peak (10.6Vrms)

Load: ............................................30K


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AP Offset Input:

Autopilot Offset .................................For autopilots that use a signal common that is not airframe

ground. Many use 5Vdc (relative to airframe) as the heading bug

signal common. In these cases, connect the autopilot signal

common to the GDC31 offset input pin, P1-19.

Maximum Input Level ..................7 volts peak (5Vrms)

Load: ............................................10K

Annunciator Output:

GPS Coupled ......................................Normally Open relay contacts configured as a SPST switch

intended to control an external GPS mode annunciator. The

GDC31 closes the contacts when the steering output is valid. It

cycles the contacts between open and closed at a 1 Hz rate if

steering data is invalid. Closed contacts connect pins P1-24 and

P1-12.

Max current: .......................................250mA

Flag Input:

Description .........................................Valid input to the GDC31 at J1-25, supplied from a GPS receiver

Super Flag output (14 or 28V).

Voltage: ..............................................Greater than 6V is valid, less than 3V is invalid.

Load ...................................................200K ohms

Certification:

PMA

DO-178B ............................................Level C

DO-160D............................................D1/BADSXXXXXXABBBAVB/A3E3/XXX

Reliability:

MTBF .................................................Greater than 50,000 hours.


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OPERATION:

Overview

The GDC31 Roll Steering Converter receives ARINC 429, Label 121 Bank Angle Command (BNR) (-03

model only), RS232 or RS422 serial data in RNAV 0, RNAV 1, King 0 or King 1 format from a GPS

navigation system. It extracts Cross Track, Ground Speed and Track Angle Error information from the

data stream to compute an appropriate bank angle command to return the aircraft to the Desired Track

computed by the GPS navigation system.

NOTE: The Bendix/King KLN-89B and KLN-94 GPS Receivers are not compatible with the GDC31 Roll

Steering Converter. See Appendix A, SIL GDC31-01.

Analog Output

The GDC31 produces an analog Roll Sum Steering (RSS) signal that drives the heading channel of the

autopilot. Phasing and amplitude of the RSS signal is based on the reference input supplied to the GDC31

from the autopilot and the gain and phase settings established by the program pins (refer to Tables 1, 2 and

3). The GDC31 will accept either an AC or a DC reference input as well as reference inputs that contain

an offset from airframe ground. The internal circuitry implements a multiplying Digital-to-Analog

converter that uses the external reference input to produce the desired signal output amplitude and phase

relative to the reference input. Certain installations (Century II and III, for example) will not accept a

heading error signal referenced to ground, so require the Isolation Coupler in order to transformer isolate

the GDC31 output signal.

Reference Inputs (Excitation)

The GDC31 contains two reference inputs to accommodate the wide range of reference voltages available.

Input Ref 1 will accommodate excitation voltages up to a maximum input of 42 volts peak (30Vrms).

Input Ref 2 will accommodate excitation voltages up to a maximum of 15 volts peak (15Vdc or 10.6Vrms).

The determination of which reference to use will depend on the gain needed to match the autopilot scale

factor as well as the maximum expected reference voltage. Certain installations (Century II and III, for

example) produce a reference voltage that is floating relative to airframe ground. These installations

require the Isolation Coupler in order to transformer isolate the GDC31 reference input signal.

ARINC 429 Input

The GDC31, (-03 model with software –001B or later) receives an ARINC 429 digital input containing

label 121.

429 Label

(Octal) Description

121 Bank Angle Command (BNR)


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GPS Mode Annunciator Control

The GDC31 contains a Normally Open relay contact configured as a SPST switch to control the external

GPS mode annunciator. This annunciator is further controlled by external switching and is active when the

pilot selects GPS mode in place of heading mode with the external switch. Refer to the typical

interconnect diagram later in this manual. If GDC31 output data is valid, the relay contacts are closed,

allowing the mode annunciator to illuminate. If the data is invalid, the GDC31 will cause the mode

annunciator to blink at a 1 Hz rate and command the steering output to zero degrees of bank (wings level).

The GPS mode annunciator blinks if either the super flag input is invalid or the serial data from the GPS is

missing or not the correct format (see Appendix A).

Super Flag Input

The GDC31 reads the Super Flag (14 or 28Vdc) from the GPS receiver. If the flag is greater than 6Vdc,

the flag shall be considered valid, if less than 3Vdc, the flag shall be considered as invalid. If the Super

Flag indicates invalid, the GDC31 shall produce a steering signal of zero degrees, blink the GPS

annunciator relay and invalidate the ARINC 429 label 121, bank command data, and label 312, ground

speed data.


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INSTALLATION

This Installation Manual is FAA Approved and contains detailed installation instructions for installing the

GDC31 into specific aircraft as listed in the AML-STC. There are required FARs that must be complied

with and followed to insure an airworthy installation. The Pre Modification Planning section will guide

you through these requirements.

This section provides details for the installation of the GDC31 Roll Steering Converter, including

configuration, wiring, mounting and checkout procedures. Follow the procedures and recommendations

found in this section to assure a successful installation.

Read this entire section before beginning the installation.

Prior to installation, determine the required scale factor and phasing for use with the aircraft’s autopilot.

Consider the location of the mode selector / annunciator switch; it should be installed within the pilot’s

primary field of view and easily accessible by the pilot.

Complete an electrical load analysis in accordance with AC 43.13-1B, Chapter 11 prior to starting the

aircraft modification to insure the aircraft has sufficient load capability.

Complete an aircraft weight and balance prior to aircraft modification to insure the aircraft has sufficient

weight and CG margin.

Material Not Supplied

The following items are required for the installation but not supplied:

Wire: MIL-W-22759/16 or equivalent

Shielded Wire: MIL-C-27500 or equivalent

Mounting screws: MS35206 6-32, 4 each

Circuit Breaker: Klixon 7277-2-2 or equivalent

Tie straps or lacing cord

Ring terminals (for grounding)

Splices

Special Tools

Use the following crimp tool to ensure reliable crimp contact connections to connector J1 and Annunciator.

Crimp tool M22520/2-01

Positioner M22520/2-08 (J1 crimp contacts)


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Mounting Considerations

The GDC31 Roll Steering Converter can mount in the avionics bay, shelf or other suitable structure. It can

be mounted in any orientation.

The optional Isolation Coupler can mount in the avionics bay, shelf or other suitable structure. It can be

mounted in any orientation.

Attach the GDC31 and Isolation Coupler to suitable structure using the following hardware.

Screw, 8-32 X 1/2” MS35206-245

Flat Washer, #8 AN960-8L

Lock Washer, #8 MS35338-42

Nut, 8-32 MS35649-282

AN or MS self-locking nut plates may be used in place of the nut and lock washer specified above.

Mount the GPS/HDG mode annunciator / switch as near as practical to the autopilot mode controller. If

there is insufficient space there, mount the mode annunciator within the pilot’s primary field of view, near

the HSI or CDI.

Wiring Considerations

Wiring should be done in accordance with AC 43.13-1B, Chapter 11. Refer to the typical interconnect

diagram later in this manual for specifics. Use 22 to 24 AWG wire for all connections.

Fabricate wiring harness; refer to the interconnect diagrams and pin description. Test all the wiring for

continuity and for shorts. Insure aircraft power is on the correct pins of J1; refer to Table 6. Install slide

latch assembly onto J1 using instructions found later in this manual.

The mode annunciator/switch, P10280, comes pre-configured for 28V operation. For 14V operation,

perform the following steps:

1. Pull firmly on the edges of the lens to disengage the lamp assembly from the body. The lamp

assembly will hinge out and away from the body.

2. Remove and discard the four existing lamps, and replace with the four 14V lamps, P10301,

contained in the kit.

3. Push the lens firmly back into the body.


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Pre Modification Planning

Annunciator/Switch

The GPS/ HDG annunciator switch should be located near the HSI/ DG or alternately, near the existing

autopilot mode annunciators.

Power Requirements

A suitable location will need to be determined for the RSS circuit breaker. It is recommended that power

to the GDC31 be supplied from the same source and the autopilot, typically the avionics buss.

Equipment Interfaces

GPS

The GDC31 provides steering command through the HDG Datum of the autopilot based on GPS input.

The GPS must be capable of providing either ARINC 429 label 121 or RS232 data in “Aviation Format”

described in section appendix A and appendix B-ARINC 429 input of the manual.

Autopilot

The GDC31 is compatible with the autopilot models listed in the Limitations Section of the GDC 31 STC.

During installation, the GDC31 in configured to emulate the Heading Datum output of the existing HSI or

DG. Refer to the wiring diagrams in Section appendix E of this manual.

No modifications to the autopilot wiring are necessary. The GDC31 will use the same Heading Datum

reference feeding the HSI or DG. As part of this modification, the HSI or DG Heading Datum error signal

is re-wired through the supplied GPS / HDG annunciator switch, enabling either the current Heading

Datum error signal of the GDC31 steering signal to feed the autopilot heading datum input

Installation Summary

Mechanical Summary

__Panel layout is evaluated for the best placement of the GPS/HDG annunciator.

__Based on an evaluation of the DO-160 limitations found in this manual, a suitable location is

found for the GDC31 computer.

__Weight and balance is performed.

Electrical Summary

__Electrical Load Analysis is performed.

__A dedicated circuit breaker in location is determined.

__Power and ground lines are installed.

__An applicable wiring diagram is selected from those available in this manual.

__Reference and heading datum interconnects are installed per the selected diagram.

Ground Checkout Summary

__Wiring is verified.

__Basic operation is verified with the ground test.


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Functional Flight Test Summary

__Autopilot HDG Datum performance is evaluated.

__GDC31 RSS performance is evaluated.

NOTE:

The following setup procedures are for diagnosing interfacing problems.

Steering Output Scale Factor Determination

The GDC31 is designed to mimic the heading error signal produced by the existing HSI or DG, so it can

operate with the wide variety of autopilots in current use. These various autopilots employ a wide range of

reference voltages and scale factors to interface with the array of HSI and DG control heads. Reference

voltage, or excitation, is the autopilot signal used to excite the Heading Select bug in the HSI or CDI. As

used in this manual, scale factor refers to the autopilot’s response to the heading error input signal,

expressed in volts per degree of bank. Examples are 200mv/deg and 60mv/deg. Examples of excitation

voltage are 26Vac and 15Vdc. The GDC31 first computes the bank angle using data from the GPS. It then

uses the reference voltage along with the scale factor setting (gain setting) to produce a signal that feeds

into the autopilot’s heading error input to produce the desired bank angle.

The GDC31 has ten (10) choices for scale factor, selected with a combination of program pins (3 each) and

reference inputs (2 each). Tables 1 and 2 describe the program pin combinations for the various scale

factors. To determine the appropriate setting for a given autopilot, first determine the autopilot excitation

amplitude in volts (AC or DC). Next, determine the autopilot scale factor from the autopilot maintenance

data. The scale factor needs to be expressed as volts/degree of bank. Divide the scale factor by the

excitation (scale factor / excitation voltage). Then look in Tables 1 and 2 for the nearest Scaling value to

the one just computed.

If the gain is set too high, the commanded course intercept will be overly aggressive. For 90-degree course

changes, too much gain will often cause the aircraft to turn inside the new course then S-turn back to

capture the track.

If the gain is set too low, the commanded course intercept will be sluggish. For a 90-degree course change,

too little gain will often cause the aircraft to overshoot the desired course then S-turn back to capture the

track. Some autopilots limit the maximum bank angle to less than the 30 degrees, 22 degrees for example.

In these cases, the aircraft will exhibit the symptoms of too little gain because the aircraft cannot turn sharp

enough to capture the track without overshooting. Examine the attitude indicator during a 90-degree

course change to verify that the aircraft banks to 30 degrees, or in the case of rate based autopilots, to a

standard rate turn.


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Configuration Pins

The GDC31 produces one of five (5) different RSS output levels for each reference input. This scaling

selection is accomplished with program pins J1-10, J1-21 (-03 model only) and J1-22. Tables 1 and 2

define the scale factors available for each of the reference inputs, Ref 1 and Ref 2.

Gain Settings Using Ref 1 input J1-18

(Excitation: Maximum input of 42 volts peak, (30 Vrms)

Scaling J1-10 J1-21 (1) J1-22

0.030276 Open Ground Open (1)

0.015138 Open Open Open

0.011590 Open Open Ground

0.007687 Ground Open Open

0.003844 Ground Open Ground

Table 1

RSS Output Scaling Selection for Ref 1 input

(1) Applicable to software -001B or later.

Gain Settings Using Ref 2 input J1-6

(Excitation: Maximum input of 15 volts peak, (15 Vdc or 10.6 Vrms)

Scaling J1-10 J1-21 (1) J1-22

0.066888 Open Ground Open (1)

0.033444 Open Open Open

0.025606 Open Open Ground

0.016983 Ground Open Open

0.008492 Ground Open Ground

Table 2

RSS Output Scaling Selection for Ref 2 input

(1) Applicable to software -001B or later.


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Phase Selection

The GDC31 will accommodate steering signals that are in phase with the reference or out of phase with the

reference. For DC heading error signals, in-phase means a positive error signal produces a right turn, a

negative error signal produces a left turn. Determine the correct phasing from the autopilot maintenance

data then wire P1-13 accordingly.

If the phasing is incorrectly wired, the autopilot will turn the opposite direction when coupled to the

GDC31 Roll Steering Converter.

Phase P1-13

IN Phase with Reference Open

OUT of Phase with Reference Ground

Table 3

Phase Selection


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Position/Rate Selection

The GDC31 is designed to operate with both position based and rate based autopilots. Configuration is set

by program pin P1-23.

Scaling J1-23

Position Based Open

Rate Based Ground

Table 4

Position / Rate Selection

Position based autopilots require attitude information from the attitude indicator or vertical gyro. Rate

based autopilots require turn rate information from the turn coordinator rate gyro. Determine the autopilot

type, if it is rate based then connect J1-23 to program pin common, J1-11.

Baud Rate Selection

Table 5 removed in revision U.

The GDC31 Roll Steering Converter, P/N 1049-4000-03, with software -001B or later, will accept two (2)

baud rates for GPS data configured using program pin P1-9.

Baud Rate P1-9

9600 Open

4800 Ground

Table 6

Serial Baud Rate Selection

Note: Use Program Pin Common, J1-11, as ground for all program pin connections.

GPS Receiver Setup

Refer to the manufacturer's instructions for the GPS interfaced to the GDC31 RSC. Configure the GPS to

output the RS232 Aviation Format data described in Appendix A.


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REMOVAL AND REPLACEMENT

Removal, GDC31

1. Open the circuit breaker powering the GDC31.

2. Remove the connector by disengaging the slide latch then pulling the connector free.

3. Remove four (4) screws securing the unit to the airframe.

Replacement, GDC31


2. Attach the unit to the airframe with four (4) screws.

3. Seat the connector then engage the slide latch to secure.

4. Close circuit breaker.

5. Perform ground functional test found under Equipment Checkout in this manual.

Removal, Mode Annunciator


2. Pull firmly on the edges of the lens to disengage the lamp assembly from the body. The lamp

assembly will hinge out and away from the body.

3. Release the two (2) pawls by unscrewing the flat-head screws located inside the body.

4. Unplug the lamp module from the sleeve.

Replacement, Mode Annunciator


2. Plug the lamp module into the sleeve.

3. Secure by engaging the two (2) pawls to the sleeve.

4. Plug the lamp module into the body - it will snap into place.

5. Close the circuit breaker.

6. Perform ground functional test found under Equipment Checkout in this manual.


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EQUIPMENT CHECKOUT

The GDC31 provides conversion of RS232 serial data or ARINC 429 digital data (1049-4000-03 with

software –001B or later) from a GPS receiver into a steering signal connected to the autopilot heading

channel through switching controlled by the HDG/GPS mode selector switch. There are no other operator

controls associated with the GDC31 unit.

The GPS receiver and the Autopilot must both be operational in order to perform this functional checkout.

Ground Functional Test

1. Insure that all control surfaces are clear and that the control wheel is centered in roll.

2. Apply power to the GPS Receiver and Autopilot.

3. Set the HDG/GPS Mode selector to HDG.

4. On the HSI, center the heading bug.

5. Engage the autopilot in Heading Mode.

6. Operate the heading bug; observe that the control wheel turns left and right in response to the

heading bug operation.

7. Center the control wheel using the heading bug.

8. Create and activate a flight plan in the GPS unit according to existing maintenance and / or flight

manual instructions.

9. Place the HDG/GPS Mode selector in the GPS position. With RS232 interface, observe GPS

illuminates and is not blinking. With ARINC429 interface, Label 121 may not validate with less

than 30 knots ground speed. If GPS receiver has test page mode, set receiver to test page to test for

steady GPS indication. Refer to applicable GPS receiver documentation for state of Label 121

valids. If receiver does not provide valid ground speed for testing then it will be necessary to taxi

aircraft in excess of 30 knots ground speed or fly to test for valid.

10. Remove power from the GPS receiver.

11. Observe that the GPS mode annunciator begins to blink within 15 seconds.

12. Verify that the control wheel centers once the GPS mode annunciator blinks.

13. Disengage the autopilot.

14. Ground test complete. Secure aircraft power.

Flight Functional Test

1. Set the HDG/GPS Mode selector to HDG.

2. On the HSI, center the heading bug.


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3. Engage the autopilot in Heading Mode.

4. Operate the heading bug; observe that the control wheel turns left and right in response to the

heading bug operation.

5. Center the heading bug.

6. Create and activate a flight plan in the GPS unit according to existing maintenance and / or flight

manual instructions. Manually fly the aircraft until the cross track error is between 1 and 3 miles.

7. Place the HDG/GPS Mode selector in the GPS position. Observe that GPS illuminates and is not

blinking.

8. Observe that the aircraft turns to intercept the course selected in Step 6. Note: The GDC31 limits

the intercept angle to 45º maximum. (Intercept angle = difference between Desired Track and

Track.)

9. Observe that the aircraft captures the course without overshoot or undershoot.

10. Operate the heading bug; observe that the heading bug has no effect.

11. Select HDG on the HDG/GPS Mode selector.

12. Observe that the aircraft follows the heading bug.

13. Flight test complete.


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CONTINUED AIRWORTHINESS:

This section provides data intended to assist the installer with establishing Instructions for Continued

Airworthiness as required by FARs 23.1529, 25.1529, 27.1529 and 29.1529.

INSTRUCTIONS TO COMPLETE FOLLOW-ON INSTALLATION DATA FORM:

For follow-on installations, complete the data sheet found on the following page. Also include a wiring

diagram specific to the installation.

On the data sheet, complete the aircraft make and model, registration number and serial number

sections. Then describe the location of the GDC31 converter in sufficient detail, using station location

numbers or other common reference points. For example, “GDC31 located under the instrument panel,

right outboard side.” Use of sketches is recommended. Likewise, describe the location of the

annunciator / switch. Describe or sketch the wire bundle routing.

Produce a wiring diagram specific to the aircraft installation. Use of wiring diagrams extracted from the

installation manual, 1049-2510-01, or sketches are also acceptable. Also a copy can be obtained from

the ICA.

Include a copy of the Instructions for Continued Airworthiness (ICA) (1049-2170-02) along with the

data sheet and wiring diagram with the aircraft records.

A copy of the Instructions for Continued Airworthiness (1049-2170-02) may be obtained from the DAC

International web site at http://www.dacint.com/products or by contacting DAC International at 1-800-

527-2531.

http://www.dacint.com/products


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FOLLOW-ON INSTALLATION DATA FORM

AIRCRAFT MAKE AND MODEL:

AIRCRAFT TAIL NUMBER:

AIRCRAFT SERIAL NUMBER:

LOCATION DESCRIPTION of GDC31 ROLL STEERING CONVERTER:

LOCATION DESCRIPTION of MODE/ANNUNCIATOR switch:

WIRE ROUTING:


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The GDC31 meets the environmental test categories detailed below in accordance with

RTCA/DO-160D, Environmental Conditions and Test Procedures for Airborne Equipment.

NOMENCLATURE: Model GDC31 Roll Steering Converter

PART NO: 1049-4000-XX-XXXX

MANUFACTURER: DAC International

ADDRESS: 6702 McNeil Drive, Austin, TX 78729

Section Category Remarks

4.0 Temperature and Altitude D1 50,000 Ft Temperature controlled

5.0 Temperature Variation B Partially controlled temperature

6.0 Humidity A Standard Humidity

7.0 Operational Shock and Crash Safety D Fixed wing

8.0 Vibration S

Curves L, M and C.

Fixed Wing – Turbojet, Turbofan, Turboprop

and reciprocating

Instrument Panel or Fuselage

9.0 Explosion Proofness X Not Tested

10.0 Waterproofness X Not Tested

11.0 Fluids Susceptibility X Not Tested

12.0 Sand and Dust X Not Tested

13.0 Fungus Resistance X Not Tested

14.0 Salt Spray X Not Tested

15.0 Magnetic Effect A 0.3 meter to 1.0 meter

16.0 Power Input B Alternator / Rectifiers

17.0 Voltage Spike B 56 volts

18.0 AF Conducted Susceptibility – Power

Inputs

B Alternator / Rectifiers

19.0 Induced Signal Susceptibility A

20.0 Radio Frequency Susceptibility

(Radiated and Conducted) V 50 volts/meter

21.0 Emission of Radio Frequency Energy B

22.0 Lightning Induced Transient

Susceptibility A3E3

23.0 Lightning Direct Effects X Not Tested

24.0 Icing X Not Tested

25.0 ESD X Not Tested


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Table 7 removed in revision U.

CONNECTOR PIN OUT: (1049-4000-03)

The GDC31 Roll Steering Converter, P/N 1049-4000-03, with software -001B or later, contains a single

25-pin male connector, J1, per MIL-C-24308. The mating connector, P1, is described previously under the

section “Equipment Supplied”.

Pin Signal Function

1 A+ 28 Vdc Primary Power

2 Serial Out RS232 Output

3 Serial In RS232 Input

4 Reserved (VPP)

5 AP-OUT Autopilot Output

6 AP-REF2 Autopilot Reference, 10.6Vac max (1)

7 RX-A ARINC 429 Receive A

8 RX-B ARINC 429 Receive B

9 BAUDSEL1 Serial Baud Rate Select 1

10 GAINSEL1 Autopilot Gain Select 1

11 Prog Pin Common Program Pin Common

12 GPS Lamp A GPS Mode Annun Relay Armature

13 Phase Select Phase select program pin

14 Power Common 28 Vdc Return

15 AP-COM Autopilot Common (ground)

16 Serial Common RS232 Common

17 Reserved (/PGM Enable)

18 AP-REF1 Autopilot Reference, 30Vac max (1)

19 AP-OFFSET Autopilot Offset Input (A/P Common) +6Vdc max

20 429 Shield ARINC 429 Shield Common

21 GAINSEL2 Autopilot Gain Select 2 (2)

22 GAINSEL0 Autopilot Gain Select 0

23 TYPESEL0 Rate Based Select

24 GPS Lamp B GPS Mode Annun Relay N.O. Contact

25 Super Flag In 14 / 28 Vdc valid flag from GPS

Table 8

J1 Pin Description

NOTES: Do not use pins labeled Reserved. These are for factory test and In-Circuit-Programming

(1) Connect only one reference. Refer to “Reference Inputs” section.

(2) Applicable to SW -001B only.


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OUTLINE DRAWINGS

GDC31 Outline

Note: Dimensions are in inches.


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Switch / Annunciator Outline

Outline for part number P10280

Note: Dimensions are in inches.

PANEL CUTOUT

1 26

811

3 45 7

9 1012

PIN OUT

(REAR VIEW)


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Isolation Coupler Outline


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SLIDE LATCH ASSEMBLY

Assemble the slide latch mechanism, part number P10219 or P10053, onto the mating connector as

pictured using the hardware supplied with the slide latch.

SLIDE LATCH

SCREW

CONNECTOR

FLAT WASHER

NUT

LOCK WASHER


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APPENDIX A – RS232 AVIATION FORMAT

The GDC31 accepts data in the RS232 Aviation Format produced by most GPS panel mount receivers.

Various manufacturers refer to this data as RNAV, KING or MAPCOM. The following table contains the

minimum data set required by the GDC31. The GDC31 is designed to disregard additional data records

transmitted from the GPS.

NOTE: The Bendix/King KLN-89A and KLN-94 GPS Receiver update rate of track is too slow to

maintain aircraft on course. If connected to a KLN-89A or KLN-94, expect a 3-degree track angle error

left and right of course over a 1 – 2 minute period.

GPS Receivers that supply the following minimum data set and any of the previously mentioned baud rates

should be compatible with the GDC31. Insure the GDC31 is configured for the correct baud rate (refer to

"Serial Baud Rate Selection" located earlier in this manual).

Aviation Data Format Description

<STX> ASCII Start of Transmission character

… other data

C284<cr> track; in degrees magnetic (ex: 284º)

D162<cr> ground speed; in knots (ex: 162 kt)

GR0050<cr> crosstrack; L (left) or R (right) in hundredths of

nautical miles (ex: Right 0.5nm)

I2855<cr> desired track; in tenths of degrees (ex: 285.5º)

… other data

<ETX> ASCII End of Transmission character

1. Each data field ends in a <cr> or <cr> <lf>

2. <cr> - ASCII carriage return character (0D hex)

3. <lf> - ASCII line feed character (0A hex)


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The GDC31 Roll Steering Converter, P/N 1049-4000-03, with software -001B or later, will accept 4800 or

9600 baud. Software –001B accepts the following data in RS232 Aviation Format produced by the

CNX80 and GNS480 GPS panel mount receivers. GPS Receivers that supply the following minimum data

set (excluding Horizontal Command Signal) and any of the previously mentioned baud rates should be

compatible with the GDC31. Insure the GDC31 is configured for the correct baud rate (refer to "Serial

Baud Rate Selection" located earlier in this manual).

Aviation Data Format Description

<STX> ASCII Start of Transmission character

… other data

C284<cr> track; in degrees magnetic (ex: 284º)

D162<cr> ground speed; in knots (ex: 162 kt)

GR0050<cr> crosstrack; L (left) or R (right) in hundredths of

nautical miles (ex: Right 0.5nm)

I2855<cr> desired track; in tenths of degrees (ex: 285.5º)

hR150<cr> Horizontal Command Signal; L (left) or R (right)

in tenths of degrees (ex: Right 15.0 degrees)

… other data

<ETX> ASCII End of Transmission character

1. Each data field ends in a <cr> or <cr> <lf>

2. <cr> - ASCII carriage return character (0D hex)

3. <lf> - ASCII line feed character (0A hex)


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APPENDIX B – ARINC 429 INPUT

The GDC31 Roll Steering Converter, P/N 1049-4000-03, with software –001B accepts input of ARINC

429 Label 121 – Bank Angle Command in the following format:

Label 121 - Bank Angle Command

Label 121 shall be formatted as follows:

3

2

3

1

3

0

2

9

2

8

2

7

2

6

2

5

2

4

2

3

2

2

2

1

2

0

1

9

1

8

1

7

1

6

1

5

1

4

1

3

1

2

1

1

1

0

0

9

0

8

0

7

0

6

0

5

0

4

0

3

0

2

0

1

P SSM S Roll Angle (two’s compliment if negative) PAD SDI Label 121

P = odd parity

SSM = sign status matrix

00 = fail/warning

11 = normal

S = sign bit, 0=positive roll angle

SDI = source/destination identifier (always zero)

Data Range: ±180°

Resolution: 0.01°


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APPENDIX C – GPS RECEIVER INTERCONNECT

Connect the GDC31 to a single GPS source only. The following diagrams are the recommended

interconnections for each source. Refer to Figure 1 for RS232 interconnect. Refer to Figure 2 for ARINC

429 interconnect.

NOTE: For Procedure Turns and Holding Patterns capabilities provided by some GPS Receivers interface

to the ARINC 429 output of the receiver shown in Figure 2.

SUPER FLAG Super Flag25

RS232 OUT

RS232 COM

GPS RECEIVER

Serial In

Serial Com

GDC31

3

16

Figure 1 RS232 Interconnect Diagram

14/28VBUS

429 TX-B

429 SHIELD

429 TX-A

GPS RECEIVER

Super Flag25

429 RX-A

429 RX-B

429 SHIELD

8

20

7

GDC31

Figure 2 ARINC 429 Interconnect Diagram


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APPENDIX D - OPTIONAL LIGHTING CONTROLS

BUSLIGHTING

A+

A+P10280

6

SWITCH/ANN

Figure 1 Day / Night Switch Interconnect Diagram

1N4001

DIMMER

+28VAVIONICSPWR

RELAYM39016/6-107P P10280

SWITCH/ANN

6

Figure 2 Relay Interconnect Diagram


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APPENDIX E - TYPICAL INTERCONNECT

All wiring, wire gauge and wire type shall be according to the INSTALLATION section of this manual.

Mounting shall use the hardware called out in this manual or AN / MS equivalent fasteners.

NOTE:

THESE SCHEMATICS ARE FOR REFERENCE ONLY. For configurations not illustrated by drawing

refer to the Installation section earlier in this manual for configuration, wiring, mounting and checkout

procedures. Many autopilot units provide both an AC and a DC excitation signal. Verify the HSI or DG is

connected to the autopilot signal and reference as shown in that diagram. Refer to the HSI or DG

manufacturer’s data and the autopilot manufacturer’s data for additional information.

Visit our website: www.dacint.com/GDC31 for additional information.

http://www.dacint.com/GDC31


GDC31 Roll Steering Converter

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AUTOPILOT INTERFACE

-03 ONLY21GAIN SELECT 2PROGRAM PINS

PROGRAM PIN COMMON

RSS OUTPUT 5

RSS COMMON

AP OFFSET7

6

5

REF2

19

6

REF1

15

18

TYPE SELECT

PHASE SELECT4

3

11

13

23RS232 or ARINC 429

Select

8ARINC 429 TX-B-01

ONLY

BAUD SELECT 0

BAUD SELECT 1

GAIN SELECT 0

GPS LAMP A

GAIN SELECT 12

1

22

10

21

9

12

429 COMMON

GPS LAMP B 24

20

ONLY

RS232 or ARINC 429

GPS INTERFACE

ONLY

SELECT

-03

ARINC 429 TX-A

RS232 RX IN

SERIAL COMMON

SUPER FLAG IN 25

7

16

3

POWER COMMON

ARINC 429 RX-A

ARINC 429 RX-B

429 COMMON

8

20

7

A+

14

1

GPS INTERFACE

-01 ONLY

<=RS232

GDC31J1 2A

SEE TABLES 5 & 6

SEE TABLES 1 AND 2

SEE TABLE 4

SEE TABLE 3

REF1 - USE FOR EXCITATION VOLTAGES GREATER THAN 15 VOLTS PEAK

FOR USE WITH AUTOPILOTS THAT USE A SIGNAL REFERENCE

SEE TABLES 1 AND 2

REF2 - USE FOR EXCITATION VOLTAGES LESS THAN 15 VOLTS PEAK

SEE TABLES 1 AND 2

THAT IS A VOLTAGE ABOVE AIRFRAME COMMON, TYPICALLY 5VDC

EXCITATION (15 Vpk to 42 Vpk)

EXCITATION (LESS THAN 15 Vpk)

ISOLATION COUPLER IS USED TO TRANSFORMER ISOLATE THE

GDC31 REFERENCE AND / OR OUTPUT FOR INSTALLATIONS WHERE

THESE SIGNALS ARE NOT REFERENCED TO AIRFRAME GROUND.

AUTOPILOT

SIGNAL REFERENCE

HDG ERROR IN

EXCITATION

GROUND

EXCITATION

HDG ERROR FROM HSI / CDI

SWITCH / ANNUNCIATOR

P10280 (28V OR 14V)

HDG

GPS12

4

7

1

5

2

11

3

10

8

6

SUPER FLAG OUT

RS232 TX OUT

SHIELD

14V OR 28 VDC BUS

GPS

ARINC 429 TX-B

ARINC 429 TX-A

SHIELD

LIGHTING VOLTAGE

8

7

6

3

5

4

2

1

1049-4801-01

2:1

COUPLERISOLATION

12

2

9

2:1

1

2:1

2:1

14

1311

6

10

45

3

Figure 1 - TYPICAL INTERCONNECT



1049-2510-01 Y.doc

1049-2510-01

Rev Y

of 85

P10280SWITCH / ANNUNC

10

23

12

6

11

GPS

HDG

81

5

4

SWITCH / ANNUNC

SCHEMATICP10280

7

BEXC

LIGHTING BUS

HDG SIGNAL A

E

G502A

D

J1

EXC

1412AP-OFFSET19

IF AIRCRAFT TURNS AWAY FROM TRACK LINE, REMOVE PHASE JUMPER AND RETEST

CONNECT PARALLEL TO EXISTING WIRING

14 OR 28VDC

FOR GPS INPUT SEE APPENDIX C - GPS RECEIVER INTERCONNECT

ARINC 429 INPUT AVAILABLE ON PINS 7 & 8 ON PN 1049-4000-03 WITH SOFTWARE -001B OR LATER

ARINC 429 OUTPUT AVAILABLE ON PINS 7 & 8 ON PN1049-4000-01 WITH SOFTWARE -001A

ENSURE ROLL CENTERING KNOB IS CENTERED

DASHED LINES REPRESENT EXISTING WIRING

GROUND BOTH ENDS OF ALL SHIELDING

SERIAL COMMON

429 RX-B

429 RX-A

429 SHIELD20

8

7

SERIAL IN

SUPER FLAG IN

16

25

3

14

TYPE SELECT

BAUDSEL1

23

1

9

6

3

4

2

RSC

7277-2-2

2A

4.5 VAC Pk-Pk 400HZ

400HZ RTN (A/C GRND)18

PROG PIN COMMON

GPS LAMP A121

2

6

3

12

5

11

TYPE SELECT

GAINSEL0

PHASE SELECT

22

13

23

GAINSEL1

GPS LAMP B

11

10

24

8

4

10

7

AP-OUT

AP-COM

AP-REF2

15

6

5

5

6

2

4

1

3

SIG COM

AC HDG IN17

23

ISOLATION COUPLERRSS CONVERTERGDC31 1049-4801-01

DATUM

20

J1

AC HEADINGCA-395A (42660-1xxx)

ARC-300A

31

92

10

1311

5

6

4

ISOLATION COUPLER1049-4801-01SCHEMATIC

Figure 2 - ARC 300A with G502A



1049-2510-01 Y.doc

1049-2510-01

Rev Y

of 85

P10280

10

7

4

8

11

1

12

3

5

6

2

SWITCH / ANNUNC

LIGHTING BUS

21HDG SIGNAL

19

20

IG-832 A/CNSD-1000NSD-360A

EXC

EXC


14 OR 28VDC



ARINC 429 OUTPUT AVAILABLE ON PINS 7 & 8 ON PN 1049-4000-01 WITH SOFTWARE -001A



SUPER FLAG IN25

429 RX-A

429 RX-B

429 SHIELD

8

20

7

SERIAL IN

SERIAL COMMON16

3

14

1

6

4

3

2A

7277-2-2

2

PROG PIN COMMON

GAINSEL110

GAINSEL0

GAINSEL2

PHASE SELECT

21

13

22

TYPE SELECT

AP-OFFSET

23

19

11

BAUDSEL19

AP-REF2

GPS LAMP A

GPS LAMP B

12

24

6

AP-COM

AP-OUT5

15

RSC

CA-395A

J1/P4

DATUM

18

20

17

ARC-300A

DC HEADING

RSS CONVERTERGDC31

+10VDC REG

DC HDG IN

-10VDC REG

8

HDG

12

3

6

11

2

GPS

1

P10280SCHEMATIC

SWITCH / ANNUNC

10

5

4

7

Figure 3 - ARC 300A (DC) with NSD-360



1049-2510-01 Y.doc

1049-2510-01

Rev Y

of 85

20 429 SHIELD1112 DASHED LINES REPRESENT EXISTING WIRING5







3188

SCHEMATIC

SWITCH / ANNUN

LIGHTING BUS

10

63

8

4

HDG

GPS

2

15

7

P10280

429 RX-B

429 RX-A

8

7

Serial Com

Super Flag2525

16

3

2

Serial In3

14

5

2

6

3

11

12

1

13

Gain Sel 022

Phase Sel

1

13

Prog Com11

14

11

Lamp B24

AP Com15

Lamp A12

5

6

4

HDG ERR LO Y-

HDG ERR HI X-

AC REF LO C-

AC REF HI H-

B

E

A

D

COLLINSPN 101

1049-4801-01

10

4

7

AP Out

Ref 1

5

9

10

12

2

1

RSS CONVERTERGDC31

SWITCH / ANNUNP10280 COUPLER

ISOLATION

2A

7277-2-2 12

14 OR 28VDC

RSC

2

9

1

14

6

1113

10

45

3

1049-4801-01

SCHEMATIC

COUPLERISOLATION

HEADING ERROR

10 VAC 400 HZ RETURN

10 VAC 400HZ

E

J3/P18

F

J1/P16

E

HDG COMC

ARC 400S530A

Figure 4 - ARC 400/S530A with PN 101



1049-2510-01 Y.doc

1049-2510-01

Rev Y

of 85


BEXC

LIGHTING BUS

HDG SIGNAL A

D

G502A

EXC

BAUDSEL19




14 OR 28VDC


ARINC 429 OUTPUT AVAILABLE ON PINS 7 & 8 ON PN1049-4000-01 WITH SOFTWARE -001A



SERIAL COMMON

3 SERIAL IN

429 SHIELD

429 RX-B

20

8

429 RX-A

SUPER FLAG IN25

7

16

TYPE SELECT

1

14

23

6

3

4

2

RSC

2A

7277-2-2

19 400HZ RTN16

PROG PIN COMMON

11 24 GPS LAMP B

6

2

5

3

12

AP-OFFSET

GAINSEL0

PHASE SELECT13

19

22

GAINSEL1

GAINSEL2

10

21

11

8

1

7

4

10

GPS LAMP A

AP-REF2

AP-COM

6

12

15

AP-OUT5

CHASSIS GND35

20 AC HDG IN

CA-550A/FD

J1/P4

DATUM

SPERRY/ARC-400B

10VAC HEADING

GDC31RSS CONVERTER

10VAC 400HZ33

J2/P5

HDG

6

12

3

8

GPS

11

2

1

5


SCHEMATIC

104

7

Figure 5 - ARC 400B/CA-550A/FD (10VAC) with G502A



1049-2510-01 Y.doc

1049-2510-01

Rev Y

of 85

10

7

4

1

12

11

8

5

2

3

6

SWITCH / ANNUNCP10280

LIGHTING BUS

21HDG SIGNAL

19

20

IG-832 A/CNSD-1000NSD-360A

EXC

EXC






14 OR 28VDC

CONNECT PARALLEL TO EXISTING WIRING20 429 SHIELD

429 RX-B

429 RX-A

SUPER FLAG IN

7

8

25

SERIAL IN

SERIAL COMMON

3

16

14

1

6

3

4

2

2A

7277-2-2

21

35

PROG PIN COMMON

23 TYPE SELECT

BAUDSEL1

AP-OFFSET

PHASE SELECT

9

13

19

GAINSEL0

GAINSEL2

GAINSEL1

22

21

10

6 AP-REF2

GPS LAMP B

GPS LAMP A

24

11

12

AP-OUT

AP-COM

5

15

RSC

SIGNAL GND

CHASSIS GND

J1/P4

DATUM

10

24

27

SPERRY/ARC-400BCA-550A/FD

DC HEADING

GDC31RSS CONVERTER

-10VDC REG

+10VDC REG

DC HDG IN

8

12

3

6

11

1

2

GPS

HDG


SCHEMATIC

107

4

5

Figure 6 - ARC 400B/CA-550A/FD (DC) with NSD-360



1049-2510-01 Y.doc

1049-2510-01

Rev Y

of 85


10

4

7

11

12

1

8

3

2

5

6LIGHTING BUS

21HDG SIGNAL

IG-832 A/C

IG-895A

NSD-1000NSD-360A

20

19EXC

EXC





14 OR 28VDC


CONNECT PARALLEL TO EXISTING WIRING20 429 SHIELD

429 RX-A

429 RX-B

SUPER FLAG IN

7

8

25

SERIAL IN

SERIAL COMMON

3

16

14

1

6

3

4

2

2A

7277-2-2

21

35

PROG PIN COMMON

23 TYPE SELECT

BAUDSEL1

PHASE SELECT

AP-OFFSET

9

13

19

GAINSEL0

GAINSEL2

GAINSEL1

22

21

10

AP-REF26

GPS LAMP B

GPS LAMP A

24

11

12

AP-COM

AP-OUT5

15

RSC

SIGNAL GND

CHASSIS GND

ARC-800B

J1/P4

CA-550A/FDDC HEADING

DATUM

10

24

27

GDC31RSS CONVERTER

-10VDC REG

DC HDG IN

+10VDC REG

8

12

3

6

11

1

2

GPS

HDG


SCHEMATIC

107

4

5

Figure 7 - ARC 800B/CA-550A/FD with IG-895A / NSD-360 / NSD-1000



1049-2510-01 Y.doc

1049-2510-01

Rev Y

of 85

SWITCH / ANNUNC

6LIGHTING BUS

12

3

2

5

1

11

8

DC HDG SIGNAL

P1028052D254M

17

EXC

EXC 20

12

4

7

10





MEASURE HDG DC EXC (REF VOLTAGE), THEN MEASURE OUTPUT AT PIN 5 WITH GPS POWERED OFF.

ADJUST POT TO 1/2 OF HDG DC EXC (REF VOLTAGE).


7

20

8

16

25

3

429 RX-A

429 SHIELD

429 RX-B

SERIAL COMMON

SUPER FLAG IN

SERIAL IN

5

3

2

23 TYPE SELECT

14

1

21

9

7.5k19 AP-OFFSET

BAUDSEL1

GAINSEL2

11

5k22

13

10

12

24

6

PROG PIN COMMON

PHASE SELECT

GAINSEL0

GAINSEL1

GPS LAMP A

GPS LAMP B

AP-REF2

7277-2-2

2A

RSC

14 OR 28VDC

GDC31

15

5

AP-COM

AP-OUT

17

20

12

RSS CONVERTER CD175

HDG CRS DC EXC (REG V+)

HDG CRS DC EXC GND

DC HEADING SIGNAL

SHIELD GND29

45

49

50

CENTURY 2000CD220or

HDG

6

12

3

GPS

11

2

SWITCH / ANNUNC

SCHEMATICP10280

8

10

5

1

4

7

Figure 8 - CENTURY 2000 with 52D254



1049-2510-01 Y.doc

1049-2510-01

Rev Y

of 85


8

LIGHTING BUS 6

3

2

5

12

11

1

(200 Mv/deg)

HDG SIGNAL X

26VAC LO

26VAC HI

10

4

7

FD112VCOLLINS


DASHED LINES REPRESENT EXISTING WIRING20 429 SHIELD

5

14 OR 28VDC




AP-REF 118

PROG PIN COMMON

3

25

7

8

16 SERIAL COMMON

429 RX-B

429 RX-A

SUPER FLAG IN

SERIAL IN

12

24

11

10

14

1

GAINSEL1

GPS LAMP A

GPS LAMP B

2

3

RSC

7277-2-2

2A

6

19

7

CD175CENTURY 2000

15

5 AP-OUT

AP-COM

RSS CONVERTERGDC31

HEADING SIGNAL

HDG EXC

HDG EXC GND

5

12

6

3

8

GPS

11

1

2

HDG

SCHEMATICP10280

SWITCH / ANNUNC

104

7

Figure 9 - CENTURY 2000 with FD112V



1049-2510-01 Y.doc

1049-2510-01

Rev Y

of 85

SWITCH / ANNUNC

LIGHTING BUS 6

12

3

2

5

1

11

8

P10280IG-832 A/C

HDG SIGNAL 21

EXC

EXC

20

19

4

7

10

NSD-360ANSD-1000

POWERED OFF, ADJUST POT TO 1/2 OF HDG DC EXC (REF VOLTAGE).

MEASURE HDG DC EXC (REF VOLTAGE). WHILE MEASURING OUTPUT AT PIN 5 WITH GPS RECEIVER





DASHED LINES REPRESENT EXISTING WIRING20

8

7

16

25

3

429 SHIELD

429 RX-B

429 RX-A

SERIAL COMMON

SUPER FLAG IN

SERIAL IN

5

3

2

15 AP-COM

14

1

13

9

7.5k19

23

PHASE SELECT

AP-OFFSET

TYPE SELECT

BAUDSEL1

11

5k 22

21

10

12

24

6

PROG PIN COMMON

GAINSEL0

GAINSEL2

GAINSEL1

GPS LAMP A

GPS LAMP B

AP-REF2

7277-2-2

2A

RSC

14 OR 28VDC

GDC31

5 AP-OUT

17

20

12

RSS CONVERTER CD175

HDG DC EXC GND

HDG DC EXC (REG V+)

DC HEADING SIGNAL

SHIELD GND29

45

49

50

CENTURY 2000CD220or

P10280

23

12

6 GPS

11

SCHEMATIC

8

HDG

104

1

5

7

SWITCH / ANNUNC

Figure 10 - CENTURY 2000 with IG-832A / NSD-360 / NSD-1000



1049-2510-01 Y.doc

1049-2510-01

Rev Y

of 85


6LIGHTING BUS

12

3

2

5

1

11

8

P1

HDG SIGNAL P

EXC j

EXC f

4

7

10

KI-525A






7

20

8

16

25

3

429 RX-A

429 SHIELD

429 RX-B

SERIAL COMMON

SUPER FLAG IN

SERIAL IN

5

3

2

14 OR 28VDC

HDG CRS DC EXC (REG V+)

DC HEADING SIGNAL

HDG CRS DC EXC GND

PROG PIN COMMON

23 TYPE SELECT

14

1

13

9

19

PHASE SELECT

AP-OFFSET

BAUDSEL1

11

22

21

10

12

24

6

GAINSEL2

GAINSEL1

GAINSEL0

GPS LAMP A

GPS LAMP B

AP-REF2

7277-2-2

RSC

2A

GDC31

15

5

AP-COM

AP-OUT

8

6

2

RSS CONVERTER 1C930

17

20

12

SHIELD GND29

45

49

50

CENTURY 2000CD175 or CD220

SWITCH / ANNUNC

3 2

GPS

12

6

11

SCHEMATICP10280

10

8

HDG

1

5

4

7

Figure 11 - CENTURY 2000 with KI-525A



1049-2510-01 Y.doc

1049-2510-01

Rev Y

of 85

FOR GPS INPUT SEE APPENDIX C - GPS RECEIVER INTERCONNECT6 429 RX-B8

CONNECT PARALLEL TO EXISTING WIRING (DASHED LINES REPRESENT EXISTING WIRING)




12 11GPS

20

6

429 SHIELD

5

SETS SCALING TO APPROXIMATELY .0026 (THIS VALUE IS NOT REFERENCED IN THE GAIN TABLES

THIS GAIN STRAPPING AND CONFIGURATION OF THE ISOLATION COUPLER WIRING EFFECTIVELY

IN THE INSTALLATION SECTION OF THIS MANUAL)


38 18Ref 1

SCHEMATIC

SWITCH / ANNUNP10280

HDG

8

3

10

LIGHTING BUS

3

1

2

45

7

25

7

16

14

Serial In

Super Flag

429 RX-A

Serial Com

NOTES:

5 10

2

6

3

22

13

1

11

11

12

1

24

15

12

Gain Sel 1 14

Gain Sel 0

Phase Sel

Prog Com

12

11

Lamp B

AP Com

Lamp A

5

6

4

SWITCH / ANNUN

52D54

HDG ERROR

DG EXC 5 KHz

DG EXC 5 KHz

A

E

D

1049-4801-01

7

4

5

10

AP Out

10

9

13

2

1

RSS CONVERTERGDC31P10280

ISOLATIONCOUPLER

31

7277-2-2

2A 12

RSC

14 OR 28VDC

2

9

14

6

1113

10

54

SCHEMATIC

ISOLATIONCOUPLER

1049-4801-01

CD 33 (PIGTAIL)

B ROLL COMMON

E

A

D

DG EXC 5 KHz

DG SIGNAL

DG EXC 5 KHz

IC388/M/PCENTURY

Figure 12 - CENTURY II or III with 52D54 to 1C388/M/P Radio Coupler



1049-2510-01 Y.doc

1049-2510-01

Rev Y

of 85

8 429 RX-B6CONNECT PARALLEL TO EXISTING WIRING (DASHED LINES REPRESENT EXISTING WIRING)




12 11GPS

20 429 SHIELD

6

5






188 3

P10280SWITCH / ANNUN

SCHEMATIC

HDG

8

3

10

LIGHTING BUS

3

1

2

45

7

25

7

16

14

Serial In

Super Flag

429 RX-A

Serial Com

NOTES:

105

6

3

2

1

13

11

22

11

12

1

24

15

12

14Gain Sel 1

Phase Sel

Gain Sel 0

Prog Com 11

12

Lamp B

AP Com

Lamp A

5

6

4

SWITCH / ANNUN

4000C

HDG ERROR A

B

E

D

52D541049-4801-01

7

4

5

10

Ref 1

AP Out

10

9

13

2

1

GDC31RSS CONVERTER

P10280 COUPLERISOLATION

1 3

2A

7277-2-2

12

RSC

14 OR 28VDC

9

2

14

1311

10

5

6

4

1049-4801-01COUPLERISOLATION

SCHEMATIC

CONSOLE / AMPCONSOLE / AMP

D D

J

A

L

J

A

L

ROLL COMMON

DG EXCITATION

DG SIGNAL

DG EXCITATION

CENTURY IIICENTURY II1C385 OR 1D395

Figure 13 - CENTURY II / III with 4000C DG / 52D54 to 1C385 / 1D395 Console / Amp



1049-2510-01 Y.doc

1049-2510-01

Rev Y

of 85


1112







3188

SCHEMATIC

SWITCH / ANNUN

LIGHTING BUS

63

8

104

HDG

GPS

2

15

7

P10280

429 RX-B

429 RX-A

8

7

Serial Com

Super Flag2525

16

3

2

Serial In3

14

5

6

3

2

11

12

1

13

Phase Sel

1

13

Prog Com

Gain Sel 0

11

22

11

14

Lamp B24

AP Com15

Lamp A12

5

6

4

HE

AD

ING

BBY

Z C C

EX

C.

EC

X A

H D

E

A

P201

D

23 H

24 J

26 N

22 G

25

P2

M

J2

WILCOX1041A

COLLINSPN 101 KPI-550

KINGor or

SPERRYRD-444-447

or

1049-4801-01

10

4

7

AP Out

Ref 1

5

9

10

12

2

1

RSS CONVERTERGDC31


ISOLATIONCOUPLER

31

2A

7277-2-2 12

14 OR 28VDC

RSC

2

9

14

6

1113

10

45

1049-4801-01

SCHEMATIC

COUPLERISOLATION

CONSOLE/AMP CONSOLE/AMP

HEADING ERROR

HDG COM

5 KHz EXCITATION

5 KHz EXCITATION

AA

J

D

L

J

D

L

CENTURYIC385

CENTURYID395

or

Figure 14 - CENTURY II / III with ARINC HSI to 1C385 / 1D395 Console/Amp



1049-2510-01 Y.doc

1049-2510-01

Rev Y

of 85


1112 5







3188

SCHEMATIC

SWITCH / ANNUN

LIGHTING BUS

10

36

8

14

3

16

2525

7

8

4

GPS

HDG

2

51

7

P10280

429 RX-A

429 RX-B

Serial Com

Super Flag3

2

Serial In

12

15

24

22

11

13

1

5

6

3

2

11

12

1

13

Phase Sel

Gain Sel 0

Prog Com 11

14

Lamp B

AP Com

Lamp A

5

6

4

19C

HE

AD

ING

EX

C.

C 31

H 18

H 33

J1

IN-831ABENDIX

1049-4801-01

5

10

4

7

AP Out

Ref 1

9

10

12

2

1

GDC31RSS CONVERTERSWITCH / ANNUN

P10280 COUPLERISOLATION

2A

7277-2-2

14 OR 28VDC

RSC

12

2

9

14

1113

10

6

54

COUPLER1049-4801-01SCHEMATIC

ISOLATION

CONSOLE/AMP CONSOLE/AMP

HEADING ERROR

ROLL EXCITATION

ROLL EXCITATION

HDG COM

A A

E

F

D

E

F

D

1

CENTURYIC385

CENTURYID395

3

Figure 15 - CENTURY II / III with IN-831A HSI to 1C385 / 1D395 CONSOLE/AMP



1049-2510-01 Y.doc

1049-2510-01

Rev Y

of 85

8 429 RX-B6 4 DASHED LINES BETWEEN HSI AND AUTOPILOT REPRESENT EXISTING WIRING



IF AIRCRAFT TURNS AWAY FROM TRACK LINE, REMOVE PHASE JUMPER THEN RETEST

12GPS

11 429 SHIELD20




10AP Out

5

SCHEMATICP10280

SWITCH / ANNUN

LIGHTING BUS

8

3

10

1

HDG

2

45

73 Serial In

25 Super Flag

429 RX-A7

Serial Com16

3

2

14

1

12

6

2

3

5

1

11

8

615 AP Com

Gain Sel 0

Phase Sel13

22

Prog Com11

14

11

13

12 Lamp A

Lamp B24

Ref 118

4

5

3

IU445-004-11

HEADING ERROR 21

IU445-003-17

EXC

EXC 20

19

NSD-1000NSD-360A

ISOLATIONSWITCH / ANNUN RSS CONVERTERGDC31

10

4

7

P10280

12

9

1

2

COUPLER1049-4801-01

14 OR 28VDC

7277-2-2

2A12

RSC

2

9

1

14

6

1113

10

45

3

COUPLER

SCHEMATIC1049-4801-01

ISOLATION

CENTURYCENTURY

HEADING COMMON

A HEADING ERROR

B

ROLL EXCITATION

ROLL EXCITATION

CD 33 PIGTAIL

E

D

IC388-2 IC388-2CD 33

Figure 16 - CENTURY II / III with NSD-360A / NSD-1000 to 1C388-2 Radio Coupler



1049-2510-01 Y.doc

1049-2510-01

Rev Y

of 85

8 429 RX-B6






12GPS

11 429 SHIELD20

5

3



10AP Out

5

SCHEMATICP10280

SWITCH / ANNUN

LIGHTING BUS

8

3

10

1

HDG

2

45

73 Serial In

25 Super Flag

429 RX-A7

Serial Com16

2

14

1

12

6

2

3

5

1

11

8

615 AP Com

Gain Sel 0

Phase Sel13

22

Prog Com11

14

11

13

12 Lamp A

Lamp B24

Ref 118

4

5

3

IU445-004-11

HEADING ERROR 21

IU445-003-17

EXC

EXC 20

19

NSD-1000NSD-360A

ISOLATIONSWITCH / ANNUN RSS CONVERTERGDC31

10

4

7

P10280

12

9

1

2

COUPLER1049-4801-01

COUPLER1049-4801-01SCHEMATIC

9

14 OR 28VDC

7277-2-2

2A

12

RSC 2

1

10

11

14

13

6

45

3

ISOLATION

CENTURY CENTURY

CONSOLE/AMP

HEADING ERROR

HEADING COMMON

ROLL EXCITATION

ROLL EXCITATION

A A

D D

CONSOLE/AMP

J

L

IC385

J

L

ID395

Figure 17 - CENTURY II / III with NSD-360A / NSD-1000 to 1C385 / 1D395 CONSOLE/AMP



1049-2510-01 Y.doc

1049-2510-01

Rev Y

of 85

3 2 8 429 RX-B CONNECT TO SINGLE SOURCE ONLY - RS232 OR ARINC 4292





126 GPS

1120 429 SHIELD

4

ARINC 429 INPUT AVAILABLE ON PINS 7 & 8 ON -03 MODEL WITH SOFTWARE -001B OR LATER

ARINC 429 OUTPUT AVAILABLE ON PINS 7 & 8 ON -01 MODEL WITH SOFTWARE -001A

ROLL EXC

HDG ERROR

SIG REF

CENTURY

8

10

5

HDG

1

74


SCHEMATIC

5

LIGHTING BUS

2

6

3

12

11

1

8

1

3 Serial In

25

7

16

Super Flag

429 RX-A

Serial Com

147277-2-2

2A

23 Type Sel 0

22

13

11

Gain Sel 0

Phase Sel

Prog Com

19

24

12

18

Offset

Lamp B

Lamp A

Ref 1

RSC

8

7

SWITCH / ANNUN

SN3500SN3308 P10280

HDG ERROR

23EXC

26

P2

4

7

10

10

26

P2

GDC31 COUPLER IC388-2

5 AP Out

A

4

6

2

3

5

1

D

E

CD 33 PIGTAIL

ISOLATION

EXISTING

RSS CONVERTER CENTURY

SCHEMATIC

IC388-2 TO DG

IC388-2 TO DGIC388-2 TO DG

IC388-2 TO AMP

14 OR 28VDC

8 4 [B]

[23]

[26]3308 HDG

EXC3308

6

7

[A]3

10k

2 [E]

5

10k

1 [D]

IC388-2

HDG COMB

CD 33

COUPLER

EXISTING

ISOLATION

Figure 18 - CENTURY III with SN3308 / SN3500 to 1C388-2 Radio Coupler



1049-2510-01 Y.doc

1049-2510-01

Rev Y

of 85

RSS CONVERTERKPI-550

KING

P201

H

C

Y

Z

XH

EA

DIN

GE

XC

.A

C

B

E

D

COLLINSPN 101

or

4

LIGHTING BUS 6

12

2

3

5

1

11

8

22A

C

B

24

23

E

D

26

P2

25

G

J

H

N

J2

M

or WILCOX1041A

SPERRYRD-444-447

or

7

10


ARINC 429 OUTPUT AVAILABLE ON PINS 7 & 8 ON PN 1049-4000-01 WITH SOFTWARE -001A16 Serial Com

IF 5 KHZ EXC AT PIN 40 ON ID496 COMPUTER, JUMPER PIN 13 TO PIN 11

IF 5 KHZ EXC AT PIN 39 ON ID496 COMPUTER, DO NOT JUMPER PIN 13 TO PIN 11

NOTE: ID496 COMPUTER MUST BE ARINC TYPE ID496-X1XX2



429 RX-A

429 RX-B

Super Flag

429 SHIELD20

7

8

25

5


SCHEMATICP10280

SWITCH / ANNUN


AP Out5

Type Sel 0

3 Serial In

14

1

23

3

2

Prog Com

Phase Sel

AP Com

Gain Sel 0

15

22

11

13

12

24

18

Lamp A

Lamp B

Ref 1

RSC

14 OR 28VDC2A

7277-2-2

612

3HDG

10

8

CENTURY IV

43

42

ID496 COMPUTERGDC31

AC HDG ERR IN

5KHz EXCITATION

SIG COM

GPS

11

2

451

7

Figure 19 - CENTURY IV with ARINC HSI



1049-2510-01 Y.doc

1049-2510-01

Rev Y

of 85

3

LIGHTING BUS 6

2

NSD-1000NSD-360A

20

21

19

8

5

12

1

11

7

4

10




12

10




11 Prog Com

7277-2-2

CONNECT PARALLEL TO EXISTING WIRING8 429 RX-B

429 SHIELD20 5

Phase Sel

Gain Sel 0

Serial Com

Super Flag

429 RX-A

Serial In

7

25

3

16

1

14

13

22

3

2

14 OR 28VDC2A

RSC

CENTURY IV

-14V

HEADING ERROR

COMMON

+14V

36

AP Com

Lamp B

Lamp A

AP Out

Ref 26

19

15

12

24

Offset

5

49

43

RSS CONVERTERGDC31

CD66

13

ID496

4

GPS

36

8

HDG

2

11

15

SCHEMATICP10280

SWITCH / ANNUN

7

Figure 20 - CENTURY IV with IG-832A / NSD-360 / NSD-1000



1049-2510-01 Y.doc

1049-2510-01

Rev Y

of 85

N EW W IR ES FR O M AN N SW ITC H AN D ISO C O U PLER TO H SI429 SH IELD20

D ISC O N N EC T EN D AT H SI AN D C O N N EC T AT AN N SW ITC H AN D ISO C O U PLER TH EN R U N

D ASH ED LIN ES AT AU TO PILO T R EPR ESEN T EXISTIN G W IR IN G W H IC H O R IG IN ALLY R U N TO H SI

FO R G PS IN PU T SEE APPEN D IX C - G PS R EC EIVER IN TER C O N N EC T

AR IN C 429 O U TPU T AVAILABLE O N P IN S 7 & 8 O N PN 1049-4000-01 W ITH SO FTW AR E -001A

AR IN C 429 IN PU T AVAILABLE O N P IN S 7 & 8 O N PN 1049-4000-03 W ITH SO FTW AR E -001B O R LATER

FLIG H T C M PTR

562A-5M 5

8 18 R ef 1

LIG H TIN G BU S

Seria l C om

429 R X-A

Super F lag

429 R X-B

Seria l In

8

7

2525

16

3

4

3

2

Prog C om

G ain Sel 0

Phase Sel

AP C om

Lam p B

Lam p A

6

2

3

1

13

22

11

5

12

11

1

14

15

24

12

14

11

13

6

5

4

SW ITC H / AN N U N

J2

26VAC (H )

26VAC (C )

H D G ER R O R (C )

H D G ER R O R (H )

4

16

5

15

H SI

331A-6R

1049-4801-01

AP O ut

10

4

5

7

9

3

10

12

R SS C O N VER TER

P10280 G D C 31 C O U PLER

ISO LATIO N

5

2A

7277-2-2

R SC

14 O R 28VD C

3

12

6

8

12

2

G PS

11

H D G

1 2

9

11

14

13

10

6

ISO LATIO N

1049-4801-01

C O U PLER

SW ITC H / AN N U N

33 H D G ER R O R (H )

S IG N AL R EF23

10G PS

H DG 7

4

P102801

54

3

Figure 21 - COLLINS AP105 with 331A-6R



1049-2510-01 Y.doc

1049-2510-01

Rev Y

of 85

SIG REF

EXCITATION

HDG ERROR

GROUND

1

429 RX-A7

429 SHIELD

429 RX-B

20

85

Serial In

Serial Com

Super Flag

16

25

3

14

2

3


26VAC EXCITATION a

SIG REF

HDG ERROR

LIGHTING BUS

5

2

6

3

11

12

1

X

B

8

4

7

10

FD112C/V

J2

29

Offset

Prog Com

Gain Sel 1

Phase Sel

Lamp A

Lamp B

19

10

13

11

24

15

12

26

Ref 1

AP Out

18

5

25

24

RSS CONVERTERGDC31

J1

913K-1/1A

14 OR 28VDC







7277-2-2

2A

SWITCH / ANNUN

SCHEMATIC

RSC

612

3

10

8

GPS

HDG

11

2

4

15

7

P10280

Figure 22 - COLLINS AP106 with FD112C/V



1049-2510-01 Y.doc

1049-2510-01

Rev Y

of 85

SWITCH / ANNUNC

4(333.3 mv/deg)

3

LIGHTING BUS 6

2

5

11

12

8

1

HDG/CRS REF

HDG ERROR 4

1

+15VDC

-15VDC 2

3

P1

10

7

P10280

1U262-042-2

4000C-15






20 429 SHIELD

SERIAL IN

429 RX-A

429 RX-B

SUPER FLAG IN

SERIAL COMMON16

7

8

25

3

5

2

3

5 AP-OUT

GAINSEL022

GAINSEL2

AP-OFFSET

BAUDSEL1

PHASE SELECT

TYPE SELECT

9

1

14

13

23

19

21

AP-REF2

AP-COM

GPS LAMP A

GAINSEL1

GPS LAMP B

PROG PIN COMMON

10

11

24

6

12

15

7277-2-2

2A

RSC

14 OR 28VDC

27

P1401GDC31

1049-4000-03

RSS CONVERTER

DG HDG DATUM

-15 VDC REG

+15 VDC REG

HDG REF

17

19

18

P1402

KAP-140

AP COMPUTER

P10280

12

6 GPS

11

SCHEMATIC

3

8

104

1

2

5

HDG

7

SWITCH / ANNUNC

Figure 23 - KING KAP 140 with 4000C-15 DG



1049-2510-01 Y.doc

1049-2510-01

Rev Y

of 85

SWITCH / ANNUNC

(600 mv/deg) 4

3

LIGHTING BUS 6

2

5

12

11

8

1

HDG/CRS REF

HDG ERROR P

S

-15VDC

+15VDC

Y

f

P1

10

7

P10280

KI-525A

IF TURNS ARE SLUGGISH, INSTALL THIS JUMPER

USE THIS JUMPER ONLY ON -03 MODEL WITH SOFTWARE -001B OR LATER






429 SHIELD20

SERIAL COMMON

SUPER FLAG IN

429 RX-B

429 RX-A

SERIAL IN

16

7

8

25

3

6

3

4

-15 VDC REG

+15 VDC REG

AP-OUT5

22 GAINSEL0

TYPE SELECT

PHASE SELECT

BAUDSEL1

AP-OFFSET

GAINSEL2

9

1

14

13

23

19

21

PROG PIN COMMON

GPS LAMP B

GAINSEL1

GPS LAMP A

AP-COM

AP-REF2

10

11

24

6

12

15

2A

7277-2-2

RSC

14 OR 28VDC

27

KAP-140

AP COMPUTER

P1401GDC31

RSS CONVERTER

1049-4000-03

HDG REF

HSI HDG DATUM2

19

18

P1

KG102A

P10280

12

6 GPS

11

SCHEMATIC

3

8

104

5

2

1

HDG

7

SWITCH / ANNUNC

Figure 24 - KING KAP 140 with KI-525A



1049-2510-01 Y.doc

1049-2510-01

Rev Y

of 85

BENDIX/KING

jSIGNAL GROUND

LIGHTING BUS

HEADING ERROR

HDG/CRS RETURN

P

S

7

20

8

16

25

3

429 RX-A

429 SHIELD

429 RX-B

Super Flag

Serial Com

Serial In

12

6

3

2

5

4

11

1

8

10

7

AP Com15

21

14

1

11

19

Gain Sel 2

Prog Com

Offset

5

12

24

6

AP Out

Lamp A

Lamp B

Ref 2

KI-525 / 525ABENDIX/KING

EXCITATION +15V

EXCITATION -15V

f

Y

P1

SWITCH / ANNUNP10280 GDC31

RSS CONVERTER

1049-4000-03

CF

THIS DRAWING SHOULD BE USED FOR SYSTEMS INCORPORATING BENDIX/KING KCS55



FOR GPS INPUT INTERCONNECT SEE APPENDIX C - GPS RECEIVER INTERCONNECT

SCHEMATIC

SWITCH / ANNUN

USE THIS JUMPER ONLY ON 1049-4000-03 MODEL WITH SOFTWARE -001B OR LATER

RADIO COUPLER

TO AC AUTOPILOT SYSTEM /




SYSTEMS WITH KA 52 OR KA 57 AUTOPILOT ADAPTERS

NOTE:

14 OR 28VDC

7277-2-2

RSC

2A

10

8 6

F

612

8

3

10

GPS

11

HDG

5

2

1

47

P10280

KA-57

5

K

or

KA-52

2

1

BENDIX/KING

Figure 25 - KING KCS55 SYSTEM with KI-525 / 525A and KA-52 / KA-57



1049-2510-01 Y.doc

1049-2510-01

Rev Y

of 85

LIGHTING BUS

P2

26

4

P1

DC HDG DATUM

(600 mv/deg)

HDG/CRS RETURN

P2

26

1

P2

SN3308 SN3500

WITH KA52 OR KA57 AUTOPILOT ADAPTERS

NOTE: THIS DRAWING SHOULD BE USED FOR SYSTEMS INCORPORATING BENDIX/KING KCS55 SYSTEMS

DASHED LINES BETWEEN KA-92 AND HSI AND DG REPRESENT EXISTING WIRING - DO NOT REMOVE






429 SHIELD20

SUPER FLAG IN

PHASE SELECT

TYPE SELECT

16 SERIAL COM

429 RX-A

429 RX-B

7

8

25

SERIAL IN3

6

13

14

1

AP-OFFSET

BAUDSEL1

19

9

23

4

5

3

14 OR 28VDC

RSC 2A

7277-2-2

6

12

3

GPS

HDG

11

2

DIRECTIONAL

2

PROG PIN COMMON12

3

2

5

1

11

8

11

GAINSEL0

GAINSEL2

GAINSEL1

22

21

10

GPS LAMP A

GPS LAMP B

AP-REF2

12

24

6

10

4

7

AP-OUT

AP-COM

5

15

HDG/CRS SEL LO

HDG SEL HIF

6

C


GDC31RSS CONVERTER

1049-4000-03

J101A/P ADAPTER

KA-52

+15 VDC REGH

SWITCH / ANNUNC

SCHEMATIC

8

10

P10280

SIGNAL GNDY

5

1

4

7

GYRO

KG-102A

Figure 26 - KING KCS55 SYSTEM with KG-102A & SN3308 / SN3500 HSI



1049-2510-01 Y.doc

1049-2510-01

Rev Y

of 85

KC 19(X)1

X

18

20

P3

KFC 150

16LIGHTING BUS

7 429 RX-A

429 RX-B

429 SHIELD20

85

Serial Com

Super Flag

Serial In

16

25

3

14

2

3

P10280

SWITCH / ANNUN

P4651B

(+393 mv/deg)

(-393 mv/deg)

26VAC EXCITATION

HDG DATUM

HDG DATUM

12

3

2

5

1

11

8

38

24

88

10

4

7

SYMBOL GEN

EFIS 50

SG 465

Ref 1

Lamp B

Lamp A

Offset

Prog Com

Type Sel 0

15

11

23

19

12

24

18

AP Out5

RSS CONVERTER

GDC31

14 OR 28VDC




DASHED LINES REPRESENT EXISTING WIRES


7277-2-2

2A

EXCITATION

RSC

HDG ERROR

SIG REF

P

612

3

10

8

GPS

HDG

11

2

451

7

SWITCH / ANNUN

SCHEMATIC

P10280

KSG-105

DG

Figure 27 - KING KFC 150 with EFIS 50



1049-2510-01 Y.doc

1049-2510-01

Rev Y

of 85

SWITCH / ANNUNC

4(600 mv/deg)

3

LIGHTING BUS 6

2

5

12

11

8

1

P10280KI-525A

HDG/CRS REF

HDG ERROR P

S

+15VDC

-15VDC Y

f

P1

10

7

7277-2-2

IF TURNS ARE SLUGGISH, INSTALL THIS JUMPERUSE THIS JUMPER ONLY ON -03 MODEL WITH SOFTWARE -001B OR LATER





DASHED LINES REPRESENT EXISTING WIRING429 SHIELD20

16

7

8

25

3

SERIAL COMMON

SUPER FLAG IN

429 RX-A

429 RX-B

SERIAL IN

6

4

3

14 OR 28VDC

+15 VDC REG

-15 VDC REG

5 AP-OUT

22 GAINSEL0

9

14

1

13

23

19

21

BAUDSEL1

PHASE SELECT

TYPE SELECT

AP-OFFSET

GAINSEL2

10

11

24

6

12

15

PROG PIN COMMON

GPS LAMP B

GAINSEL1

GPS LAMP A

AP-REF2

AP-COM

2A

RSC

CHASSIS GND

SIGNAL GND

A

10

P19(X)1

KC-191 / KC-192 FLIGHTCOMPUTERGDC31

1049-4000-03

RSS CONVERTER

KG-102/KG-102A

DC HDG DATUM (HDG SEL HI)

HDG DATUM REF (LO)

DATUM REF

X

20

19

P19(X)2

K

H

KFC-150

P10280

3 2

12

6 GPS

11

8

104

HDG

1

5

SCHEMATIC

7

SWITCH / ANNUNC

Figure 28 - KING KFC 150 with KI-525A



1049-2510-01 Y.doc

1049-2510-01

Rev Y

of 85

LIGHTING BUS

DC HDG DATUM

SIGNAL GRND

P2 P2

26 26

4

P1

1

P2

SN 3308 SN 3500

USE THIS JUMPER ONLY ON -03 MODEL WITH SOFTWARE -001B OR LATERIF TURNS ARE SLUGGISH, INSTALL THIS JUMPER





CONNECT PARALLEL TO EXISTING WIRING (EXISTING WIRING NOT ILLUSTRATED FROM DG)

429 SHIELD20

SUPER FLAG IN

PHASE SELECT

TYPE SELECT

16 SERIAL COM

429 RX-A

429 RX-B

7

8

25

SERIAL IN3

6

13

14

1

AP-OFFSET

BAUDSEL1

19

9

23

3

6

4

14 OR 28VDC

RSC 2A

7277-2-2

6

12

3

GPS

HDG

11

2

DIRECTIONAL

PROG PIN COMMON12

3

2

5

1

11

8

11

GAINSEL0

GAINSEL2

GAINSEL1

22

21

10

GPS LAMP A

GPS LAMP B

AP-REF2

12

24

6

10

4

7

AP-OUT

AP-COM

5

15

HDG DATUM HI

HDG DATUM LO

X

20


GDC31RSS CONVERTER

1049-4000-03

P1901

COMPUTERKC190/KC191/KC192

KFC-150 SERIES

+15 VDC REGH

SWITCH / ANNUNC

SCHEMATIC

8

10

P10280

SIGNAL GNDY

5

1

4

7

GYRO

KG-102A

Figure 29 - KING KFC 150 with SN3308 / SN3500 & KG-102A



1049-2510-01 Y.doc

1049-2510-01

Rev Y

of 85

LIGHTING BUS

Y-15VDC

HDG/CRS REF

SIGNAL GND

HDG ERROR

(600 mv/deg)

P

j

S

+15VDC

P1

f

KI-525A

23








429 SHIELD20

AP-OFFSET

TYPE SELECT

BAUDSEL1

PHASE SELECT

SERIAL IN

SUPER FLAG IN

429 RX-A

429 RX-B

SERIAL COM16

25

8

7

3

6

13

1

14

23

9

19

3

6

4

2ARSC

7277-2-2

14 OR 28VDC

12

6

11

GPS

HDG/CRS DATUM REF (LO)


GPS LAMP A

GPS LAMP B

GAINSEL0

GAINSEL2

GAINSEL1

PROG PIN COMMON12

5

2

3

8

11

1

11

10

21

22

6

24

12

AP-REF2

10

7

4

15

5 AP-OUT

AP-COM

16

17

H

M


RSS CONVERTERGDC31

1049-4000-03 COMPUTER

KFC-200 / KFC250KFC-275/325

KCP-220P2201

KC-295 / KCP-299P2952 / P2992

K -15 VDC REG

P10280

410

HDG

81

5

SCHEMATIC

7

SIGNAL GNDY

SWITCH / ANNUNC

+15 VDC REG

DIRECTIONAL

H

GYRO

KG-102A

Figure 30 - KING KFC 200 / 300 Series with KI-525A



1049-2510-01 Y.doc

1049-2510-01

Rev Y

of 85

LIGHTING BUS

GPS

SWITCH / ANNUNC

SCHEMATICP10280

12

3

6

HDG

10

8

26 VAC (C) E

HDG SELECT (X) A

B(Y)

26 VAC (H) D

J5501KPI-550A

6 22 GAINSEL0









11429 SHIELD20

SERIAL COM

SUPER FLAG IN

429 RX-A

429 RX-B

SERIAL IN

BAUDSEL1

AP-OFFSET

TYPE SELECT

1

2

4

5

7

16

7

8

25

3

1

14

19

9

23

3

6

4

2A

7277-2-2

RSC

14 OR 28VDC

26 VAC INV

GAINSEL1

PHASE SELECT

GPS LAMP A

GPS LAMP B

GAINSEL2

PROG PIN COMMON

AP-REF1

8 15

5

2

3

11

12

1

11

10

13

24

12

21

4

10

7

18

5

AP-COM

AP-OUT

2

5

4

6

1

3

6

7


RSS CONVERTERGDC31

1049-4000-03

ISOLATIONCOUPLER

1049-4801-01

KA-118J1181

5

LO

HI

Figure 31 - KING KFC 200 with KA-118 & KPI-550A



1049-2510-01 Y.doc

1049-2510-01

Rev Y

of 85

LIGHTING BUS

DC HDG DATUM

HDG/CRS REF

P

P8251

S

KI-825







429 SHIELD20

SUPER FLAG IN

PHASE SELECT

TYPE SELECT

16 SERIAL COM

429 RX-A

429 RX-B

7

8

25

SERIAL IN3

6

13

14

1

AP-OFFSET

BAUDSEL1

19

9

23

3

6

4

14 OR 28VDC

RSC 2A

7277-2-2

6

12

3

GPS

HDG

11

2

DIRECTIONAL

PROG PIN COMMON12

3

2

5

1

11

8

11

GAINSEL0

GAINSEL2

GAINSEL1

22

21

10

GPS LAMP A

GPS LAMP B

AP-REF2

12

24

6

10

4

7

AP-OUT

AP-COM

5

15

HDG DATUM HI

HDG DATUM LO

H

M


GDC31RSS CONVERTER

1049-4000-03

P2952

COMPUTER

KFC-200 SERIES

+15 VDC REGH

SWITCH / ANNUNC

SCHEMATIC

8

10

P10280

SIGNAL GNDY

5

1

4

7

GYRO

KG-102A

Figure 32 - KING KFC 200 with KI-825 HSI



1049-2510-01 Y.doc

1049-2510-01

Rev Y

of 85

LIGHTING BUS

KK26 VAC (C)

HDG SEL ERROR (C)

HDG SEL ERROR (H) R

S

26 VAC (H)

KPI-552

LL

J101

3 2






429 SHIELD20

BAUDSEL1

AP-OFFSET

TYPE SELECT

PHASE SELECT

SERIAL IN

429 RX-B

429 RX-A

SUPER FLAG IN

SERIAL COM16

25

7

8

3

6

13

14

1

23

19

9

2

5

3

2ARSC

7277-2-2

14 OR 28VDC

12

6 GPS

11

HDG SEL (C)

HDG SEL (H)

AP-COM

AP-REF1

GPS LAMP B

GPS LAMP A

GAINSEL1

GAINSEL2

GAINSEL0

PROG PIN COMMON12

3

2

5

11

1

8

11

10

21

22

18

24

12

10

4

7

15

AP-OUT5

H

M

12

13


RSS CONVERTERGDC31

1049-4000-03

KCP-295/299

COMPUTER

J2

KFC-200/250

KCP-320

COMPUTER

J3201

KFC-300

26 VAC (C)d

SWITCH / ANNUNC

SCHEMATICP10280

8

HDG

10

e GROUND

4

1

5

7

KSG-105

GYRODIRECTIONAL

P 26 VAC (H)

Figure 33 - KING KFC 200 / 300 Series with KPI-552



1049-2510-01 Y.doc

1049-2510-01

Rev Y

of 85

LIGHTING BUS

P2

26

4

P1

DC HDG DATUM

(600 mv/deg)

HDG/CRS REF

P2

26

1

P2

SN3308 SN3500







429 SHIELD20

SUPER FLAG IN

PHASE SELECT

TYPE SELECT

16 SERIAL COM

429 RX-A

429 RX-B

7

8

25

SERIAL IN3

6

13

14

1

AP-OFFSET

BAUDSEL1

19

9

23

3

6

4

14 OR 28VDC

RSC 2A

7277-2-2

6

12

3

GPS

HDG

11

2

DIRECTIONAL

PROG PIN COMMON12

3

2

5

1

11

8

11

GAINSEL0

GAINSEL2

GAINSEL1

22

21

10

GPS LAMP A

GPS LAMP B

AP-REF2

12

24

6

10

4

7

AP-OUT

AP-COM

5

15



H

M


GDC31RSS CONVERTER

1049-4000-03

COMPUTERKC295

KFC-200 SERIES

+15 VDC REGH

SWITCH / ANNUNC

SCHEMATIC

8

10

P10280

SIGNAL GNDY

5

1

4

7

GYRO

KG-102A

Figure 34 - KING KFC 200 Series with SN3308 / SN3500 & KG-102A



1049-2510-01 Y.doc

1049-2510-01

Rev Y

of 85

LIGHTING BUS

DC HDG DATUM

(600 mv/deg)

HDG/CRS REF

P2P2

26 26

4

P1

1

P2

SN3308 SN3500

HDG






USE 28 V BUS FOR GDC 31 REFERENCE VOLTAGE WHEN KG102A IS NOT USED

429 SHIELD20

TYPE SELECT

AP-OFFSET

BAUDSEL1

SERIAL IN

429 RX-A

429 RX-B

SERIAL COM

SUPER FLAG IN

PHASE SELECT

16

25

8

7

3

6

13

1

14

23

9

19

3

6

4

2ARSC

7277-2-2

14 OR 28VDC

GPS

12

6

3

11

2


GPS LAMP B

GPS LAMP A

AP-REF2

GAINSEL0

GAINSEL2

GAINSEL1

PROG PIN COMMON12

5

2

3

8

11

1

11

10

21

22

6

24

12

10

7

4

15

5 AP-OUT

AP-COM


H

M


1049-4000-03

GDC31RSS CONVERTER

KFC-200 SERIES

COMPUTER

KC295

SWITCH / ANNUNC

710

81

4

5

P10280SCHEMATIC

(14.5 V - 15.5 V)

15 V ZENER 1W 10 UF

25 V

28 VDC

+15 VDC REG

1 W

4700 OHM

Figure 35 - KING KFC 200 Series with SN3308 / SN3500 – without DG



1049-2510-01 Y.doc

1049-2510-01

Rev Y

of 85

SIG REF

HDG ERROR

LIGHTING BUS 6 1

429 RX-A7

429 SHIELD

429 RX-B

20

85

Serial In

Super Flag

Serial Com16

25

3

14

2

3


HDG DATUM

HDG DATUM

26VAC EXCITATION

(-393 mv/deg)

(+393 mv/deg)

3

2

5

12

11

1

8

38

24

10

4

7

SYMBOL GEN

SG 465

EFIS 50

Prog Com

Type Sel 0

Offset

Lamp A

Lamp B

Ref 1

11

23

19

15

24

12

18

AP Out5

34

35

36

RSS CONVERTERGDC31

KFC 325

KCP 220

P3

14 OR 28VDC






7277-2-2

2A

RSC

P EXCITATION

12

36

10

8

HDG

GPS

11

2

451

7

SWITCH / ANNUN

SCHEMATIC

P10280

KSG 105

DG

Figure 36 - KING KFC 325 with EFIS 50



1049-2510-01 Y.doc

1049-2510-01

Rev Y

of 85

RSS CONVERTER

LIGHTING BUS

6 GPS

1112

47

1

2

5

SWITCH / ANNUN

3

8

10

HDG

P10280SCHEMATIC

6

2

NSD-360ANSD-1000

HEADING ERROR

46

21

EXCITATION GND

+10VDC EXCITATION

19

20

8

12

5

3

11

1

4

10

7






429 RX-B8

429 SHIELD20 5

Super Flag

Serial Com

429 RX-A

Type Sel 0

16

7

25

3 Serial In

14

1

23

3

2


14 OR 28VDC2A

7277-2-2

RSC

PROG COMP

S-TEC 50

Prog Com

Offset 19

11

24

12

Lamp B

Lamp A

5

15

6

AP Out

AP Com

Ref 2

GDC31

25

31

27

28

PROG COMP

S-TEC 55

39

4

43

38

HEADING ERROR

SIGNAL REF (+5 vdc)26

19

EXCITATION GND

+10VDC EXCITATION

S-TEC 60/65

34

5

RFGC

Figure 37 - S-TEC 50/55/60/65 (DC) with NSD-360A / NSD-1000



1049-2510-01 Y.doc

1049-2510-01

Rev Y

of 85

3 ARINC 429 OUTPUT AVAILABLE ON PINS 7 & 8 ON PN 1049-4000-01 WITH SOFTWARE -001A8 429 RX-B23


CONNECT PARALLEL TO EXISTING WIRING126

20

GPS

11429 SHIELD

5



NOTES:

LIGHTING BUS


SCHEMATIC

8

10

1

16

14

255

HDG

1

47

429 RX-A

Super Flag

7

Serial In

Serial Com

3

2

12

23

22

11

10

24

5

2

6

3

12

11

1

8

Gain Sel 1

Gain Sel 0

Type Sel

Prog Com

Lamp B

Ref 2

Lamp A

6

5

4

HDG SIGNAL

SIGNAL REF (5 VDC)

EXCITATION REF

A

B

E

D

S-TEC DG6406

1049-4801-01

4

7

10

AP Out5 1

2

3

6

RSS CONVERTERGDC31


ISOLATIONCOUPLER

SCHEMATIC

14 OR 28VDC

7277-2-2

2A

12

RSC9

2

1

13

14

11

5

10

6

3

4

COUPLERISOLATION

EXCITATION REF

SIGNAL REF (5 VDC)

HDG SIGNAL

1049-4801-01

26

27

7

25

15

8

36

26

4

S-TEC 55/55XPROG COMP

S-TEC 50PROG COMP

S-TEC 60/65PROG COMP

Figure 38 - S-TEC 50/55/55X/60/65 (AC) with 6406 HSI



1049-2510-01 Y.doc

1049-2510-01

Rev Y

of 85

LIGHTING BUS

-15VDC Y

SIGNAL GND

HDG ERROR

HDG/CRS REF

P

j

S

+15VDC

P1

f

KI-525A

3 2





DASHED LINES REPRESENT EXISTING WIRING5429 SHIELD20

BAUDSEL1

AP-OFFSET

TYPE SELECT

PHASE SELECT

SERIAL IN

429 RX-B

429 RX-A

SUPER FLAG IN

SERIAL COM16

25

8

7

3

6

13

1

14

23

9

19

2

3

2ARSC

7277-2-2

14 OR 28VDC

1112

6 GPS

RFGC

STEC-60

13

19

GPS LAMP A

GPS LAMP B

GAINSEL1

GAINSEL0

PROG PIN COMMON

GAINSEL212

5

2

3

8

11

1

21

10

11

22

6

24

12

AP-REF2

10

7

4

15

5 AP-OUT

AP-COM

31

29

28

29


1049-4000-03

GDC31RSS CONVERTER STEC-50

PROG COMP

STEC-55

PROG COMP

K -15 VDC REG

SIGNAL GND

P10280

410

HDG

81

5

SCHEMATIC

7



SWITCH / ANNUNC

Y

+15 VDC REG

KG-102ADIRECTIONAL

H

GYRO

Figure 39 - S-TEC 50/55/60 with KI-525A



1049-2510-01 Y.doc

1049-2510-01

Rev Y

of 85

13

3

16

25

7

8

20

1

14

11

22

23

GDC31RSS CONVERTER

19

5

6

12

15

24

85

12

36

HDG

2

GPS

11

1

LIGHTING BUS

10

SWITCH / ANNUN

SCHEMATIC

74

P10280

6

212

3

2

5

5

4

11

8

1

1041AWILCOX

23

24

22

25

26

P2H

EA

DIN

GE

XC

.

Y B

Z C

X

H

C

A

D

E

B

C

A

D

E

orPN 101

COLLINSKPI-550

P201

KINGor


H

J

G

N

M

SPERRYRD-444-447

or

J2

10

4 3

1

6

7

ISOLATIONCOUPLER

1049-4801-01




+5 vdc OFFSET PROVIDED THROUGH ISOLATION TRANSFORMER, PIN 6


ARINC 429 OUTPUT AVAILABLE ON PINS 7 & 8 ON PN 1049-4000-01 WITH SOFTWARE -001A429 RX-B

429 SHIELD

Serial Com

429 RX-A

Super Flag

6

3

4

7277-2-2

RSCGain Sel 0

Serial In

Type Sel 0

2A

AP Com

Phase Sel

Prog Com

Offset

Lamp B

Lamp A

Ref 2

14 OR 28VDC

11

12 14

2

9

6

10

13

54

26

27

55S-TEC

PROG COMP

25

10

8

AP Out

7

PROG COMP

50S-TEC

4

26

12

HDG ERR IN

EXCITATION

SIG COM

RFGC

60/65S-TEC

1049-4801-01COUPLERISOLATION

SCHEMATIC

1 3

Figure 40 - S-TEC 50/55/60/65 with ARINC HSI



1049-2510-01 Y.doc

1049-2510-01

Rev Y

of 85

20 429 SHIELD6CONNECT COUPLER PINS 1, 2 & 13 PARALLEL TO EXISTING WIRING



12GPS

11

6







NOTES:

SCHEMATIC


LIGHTING BUS

8

3

10

14

7

1

HDG

2

45

Serial Com16

429 RX-A7

429 RX-B8

Super Flag25

4

3

Serial In3

3

6

2

5

12

11

1

Prog Com11 11

Phase Sel13

1

Gain Sel 022 12

Type Sel

Gain Sel 110

23

Lamp A

Lamp B24

12

14

6

5

4

HEADING ERROR A

E

B

1U262-006-45

8

4

7

10

AP Out

Ref 118

5

3

9

10

13

2

1

GDC31P102801049-4801-01

COUPLER

1 3

2A

7277-2-2 12

14 OR 28VDC

RSC

2

9

14

6

1113

10

54

ROLL EXCITATION 10VAC P-P (3VRMS)

ISOLATION

SCHEMATIC

1049-4801-01COUPLER

8

25

15

SIGNAL REF (5V Offset)

DG HDG SIGNAL4

26

36

S-TEC 60/65RFGCPROG COMP

S-TEC 50

Figure 41 - S-TEC 50/60/65 (AC) with 1U262-006-45 DG



1049-2510-01 Y.doc

1049-2510-01

Rev Y

of 85

429 SHIELD20ARINC 429 INPUT AVAILABLE ON PINS 7 & 8 ON PN 1049-4000-03 WITH SOFTWARE -001B OR LATER





GPS

126

11

6

4

3




NOTES:


8 18 3


SCHEMATIC

8

3HDG

10

LIGHTING BUS

429 RX-A

Super Flag

429 RX-B

Serial Com

Serial In

5

2

1

47

7

8

25

16

3

14

Phase Sel

Prog Com

Gain Sel 0

Gain Sel 1

Type Sel

Lamp B

Lamp A

5 10

6

3

2

1

13

11

22

11

12

1

24

23

12

14

11

12

5

6

4

SWITCH / ANNUN

52D54

ROLL EXCITATION

SIGNAL REF

HEADING ERROR

ROLL COMMON

A

B

E

D

1049-4801-01

Ref 1

AP Out

7

4

5

10

10

9

13

2

1

RSS CONVERTERP10280 GDC31

ISOLATIONCOUPLER

2A

7277-2-2 12

RSC

14 OR 28VDC

9

2

1

14

1311

10

6

45

3

ROLL EXCITATION 10VAC P-P (3VRMS)

PROG COMP RFGC

SIGNAL REF (5V Offset)

HDG SIGNAL

25

8

15

26

4

36

1049-4801-01

SCHEMATIC

ISOLATIONCOUPLER

S-TEC 60/65S-TEC 50

Figure 42 - S-TEC 50/60/65 (AC) with 52D54 DG



1049-2510-01 Y.doc

1049-2510-01

Rev Y

of 85

5

3

2

S-TEC 55PROG COMP

1

429 RX-A7

429 SHIELD

429 RX-B8

20

Serial Com

Super Flag

Serial In

25

3

16

14

SWITCH / ANNUN

EXCITATION D

ROLL COMMON

HDG ERROR

SIG REF

LIGHTING BUS

5

2

6

3

11

12

1

A

B

E

8

4

7

10

DG52D54

P10280

38

Gain Sel 1

Type Sel 0

Prog Com

Lamp A

Lamp B

19 Offset

10

23

11

15

24

12

43

AP Out

18

5

Ref 1

28

27

RSS CONVERTERGDC31

14 OR 28VDC






7277-2-2

2A

+10 VDC EXCITATION

RSC

GROUND

SIGNAL REF (+5 VDC)

HDG ERROR

SCHEMATIC

GPS

36

12

8

HDG

10

5

2

11

1

74


Figure 43 - S-TEC 55 (DC) with 52D54DG



1049-2510-01 Y.doc

1049-2510-01

Rev Y

of 85

3 ARINC 429 OUTPUT AVAILABLE ON PINS 7 & 8 ON PN 1049-4000-01 WITH SOFTWARE -001A6 429 RX-B8




20

GPS

11429 SHIELD

5


NOTES:


68 9

LIGHTING BUS

SCHEMATIC


8

3

10

14

16

251

HDG

2

45

7 Serial In3

Super Flag

429 RX-A7

Serial Com

2

12

24

22

11

23

105

6

3

2

11

12

1

Gain Sel 1 14

Type Sel

1

Prog Com

Gain Sel 0

13

10

11

Lamp B

Lamp A

5

12

4

6443

HDG SIGNAL

EXCITATION

SIGNAL REF 14

13

1

HSI

1049-4801-01

15

7

4

10

6

Ref 2

AP Out5

AP Com2

1

3

RSS CONVERTERGDC31


ISOLATIONCOUPLER

1 3

2A

7277-2-2

12

14 OR 28VDC

RSC

9

2

14

1311

10

5

6

4

1049-4801-01COUPLER

SCHEMATIC

ISOLATION

4

26

1225

27

7

SIGNAL REF

HDG SIGNAL

EXCITATION

S-TEC 65RFGC

S-TEC 55PROG COMP

Figure 44 - S-TEC 55/65 (AC) with 6443 HSI



1049-2510-01 Y.doc

1049-2510-01

Rev Y

of 85

ARINC 429 OUTPUT AVAILABLE ON PINS 7 & 8 ON PN 1049-4000-01 WITH SOFTWARE -001A36 429 RX-B8




20

GPS

11429 SHIELD

5


NOTES:


5 18

LIGHTING BUS

SCHEMATIC


8

3

10

14

16

251

HDG

2

45

7 Serial In3

Super Flag

429 RX-A7

Serial Com

2

12

24

22

11

23

105

6

3

2

11

12

1

Gain Sel 1

Type Sel

1

Prog Com

Gain Sel 0

Lamp B

Lamp A 5

HDG SIGNAL

EXCITATION

SIGNAL REF B

A

D

G502A1049-4801-01

15

7

4

10

6

Ref 2

AP Out

6

AP Com2

4

3

RSS CONVERTERGDC31


ISOLATIONCOUPLER

1 3

2A

7277-2-2

12

14 OR 28VDC

RSC

9

2

14

1311

10

5

6

4

1049-4801-01COUPLER

SCHEMATIC

ISOLATION

36

26

4

SIGNAL REF

HDG SIGNAL

EXCITATION

S-TEC 60-2RFGC

Figure 45 - S-TEC 60 with G502A HSI

equipment installation manual - dac...

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