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ARGUS RADAR SRT Adapter BoxTechnical Manual

SRT ADAPTER BOX

988-10610-001

RECORD OF CHANGES

RCS CODE/REV. INDEX DATE PURPOSE OF THE

CHANGE CHANGE REQUESTED

BY

988-10610-001 Jan. 2010 First Issue

SRT ADAPTER BOX

TABLE OF CONTENTS

988-10610-001

TABLE OF CONTENTS

The contents of the present technical manual have been arranged into 9 Chapters as follows:

Warnings Chapter 1 DESCRIPTION AND MAIN CHARACTERISTICS Chapter 2 OPERATION Chapter 3 FUNCTIONAL DESCRIPTION Chapter 4 PREVENTIVE MAINTENANCE Chapter 5 TROUBLESHOOTING Chapter 6 CORRECTIVE MAINTENANCE Chapter 7 PARTS LIST Chapter 8 INSTALLATION Chapter 9 FIGURES

SRT ADAPTER BOX

TABLE OF CONTENTS

988-10610-001

TABLE OF CONTENTS

CHAPTER 1 DESCRIPTION AND MAIN CHARACTERISTICS ................................................... 1-1

1.1 INTRODUCTION ......................................................................................................................... 1-1

CHAPTER 2 OPERATION ................................................................................................................... 2-1

CHAPTER 3 FUNCTIONAL DESCRIPTION .................................................................................... 3-1

3.1 INTRODUCTION ......................................................................................................................... 3-1 3.2 FUNCTIONAL DESCRIPTION ....................................................................................................... 3-1

3.2.1 Buffer Box Unit (Figure 3.2) .............................................................................................. 3-1 3.2.2 Decoder (Figure 3.2) ........................................................................................................... 3-2 3.2.3 SRT - Console Transmission Format ................................................................................... 3-3

CHAPTER 4 PREVENTIVE MAINTENANCE .................................................................................. 4-1

4.1 INTRODUCTION ......................................................................................................................... 4-1

CHAPTER 5 TROUBLESHOOTING .................................................................................................. 5-1

5.1 INTRODUCTION ......................................................................................................................... 5-1 5.1.1 General ................................................................................................................................ 5-1 5.1.2 Organization ........................................................................................................................ 5-1 5.1.3 Personnel ............................................................................................................................. 5-1 5.1.4 Tools and Instruments ......................................................................................................... 5-1

5.2 TROUBLESHOOTING PROCEDURES ............................................................................................ 5-2 5.2.1 Safety Precautions ............................................................................................................... 5-2 5.2.2 Preliminary Check ............................................................................................................... 5-2 5.2.3 Troubleshooting Operations ................................................................................................ 5-3

CHAPTER 6 CORRECTIVE MAINTENANCE ................................................................................. 6-1

6.1 GENERAL .................................................................................................................................. 6-1 6.1.1 Introduction ......................................................................................................................... 6-1 6.1.2 Safety Precautions ............................................................................................................... 6-1 6.1.3 Personnel ............................................................................................................................. 6-1

6.2 CORRECTIVE MAINTENANCE PROCEDURES .............................................................................. 6-2 6.2.1 Power Supply Replacement ................................................................................................. 6-2 6.2.2 Line Filter Replacement ...................................................................................................... 6-2 6.2.3 SRT-Adapter Board replacement ......................................................................................... 6-3

CHAPTER 7 PARTS LIST .................................................................................................................... 7-1

7.1 INTRODUCTION ......................................................................................................................... 7-1 7.1.1 Parts List ............................................................................................................................. 7-1 7.1.2 Part Location Illustration .................................................................................................... 7-1

7.2 PARTS LIST TABLE ................................................................................................................... 7-2

CHAPTER 8 INSTALLATION ............................................................................................................. 8-1

8.1 PRELIMINARY OPERATION ........................................................................................................ 8-1 8.2 TRANSMITTER CABLE INSTALLATION........................................................................................ 8-1

8.2.1 Combined video cable installation (Chapter 9, Figure 9.6) ................................................ 8-1 8.2.2 Standard communication cable installation (Chapter 9, Figure 9.6) .................................. 8-1

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TABLE OF CONTENTS

988-10610-001

8.3 CONSOLE CABLE INSTALLATION ............................................................................................... 8-2 8.3.1 Combined video configuration (Chapter 9, Figure 9.6) ...................................................... 8-2 8.3.2 Standard communication configuration (Chapter 9, Figure 9.6) ........................................ 8-2 8.3.3 Jumper configuration on SRT Adapter (Chapter 9, Figure 9.8) .......................................... 8-2

8.4 PRELIMINARY CHECK (CHAPTER 9, FIGURE 9.4) ....................................................................... 8-4 8.5 INPUT/OUTPUT REQUIREMENTS SRT ADAPTER ........................................................................ 8-5

8.5.1 Input/Output requirements combined video decoder ........................................................... 8-5 8.5.2 Buffer box unit input/output requirements ........................................................................... 8-6

CHAPTER 9 FIGURES .......................................................................................................................... 9-1

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WARNINGS

IMPORTANT NOTE For correct operation, please, read this instruction manual carefully, before operating the equipment.

HIGH VOLTAGES

Radar equipment includes high voltage that can cause injury or loss of life. Danger exists only when the units are opened exposing internal circuits, as when servicing the equipment. You do not face any danger during normal operation. The SRT Adapter Box has been carefully designed to protect personnel from possible injury from high voltages at normal operation.

When inspecting or servicing the equipment it is nevertheless recommended that the Line Switch is left open, as an added protection.

Although every effort has been made to eliminate danger to personnel, no responsibility is accepted for any injury or loss of life suffered in connection with the equipment.

SAFETY SWITCH

The Radar Unit is provided with a safety switch, which disables the Antenna rotation during maintenance and avoids high voltage damage. Always turn the safety switch off, whenever advised in this manual (for instance, before performing any maintenance or installation procedure). Ignoring safety switch operation may produce hazard of electrocution as well as other severe injuries.

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Warning Information The following warnings appear in the text of this technical manual, and are repeated here for emphasis:

WARNING USE EXTREME CARE WHEN WORKING ON THE UNIT ONCE THE COVER HAS BEEN OPENED. THE MAGNETRON ASSEMBLY OPERATES AT HIGH VOLTAGES THAT MAY CAUSE FATAL INJURIES

WARNING BEWARE OF HIGH VOLTAGE CAPACITORS. IT IS NECESSARY TO SHORT-CIRCUIT THEIR LEADS BEFORE PERFORMING ANY MAINTENANCE ACTION.

WARNING ON THE ELECTRIC SWITCHBOARD, SET THE POWER BREAKER DEDICATED TO THE PRESENT EQUIPMENT TO “OFF” AND AFFIX A SIGN, READING: “WORK IN PROGRESS - DO NOT SWITCH ON! ”

WARNING USE EXTREME CARE, WHEN WORKING ON THE EQUIPMENT ONCE THE FRONT COVER HAS BEEN OPENED. THE MAGNETRON ASSEMBLY OPERATES AT HIGH VOLTAGES THAT MAY CAUSE FATAL INJURIES!

WARNING SET THE MAIN LINE BREAKER TO OFF BEFORE REPLACING A FUSE. FUSES ARE UNDER VOLTAGE LEVELS WHICH MAY CAUSE FATAL INJURIES!

SRT ADAPTER BOX

DESCRIPTION AND MAIN CHARACTERISTICS

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CHAPTER 1 DESCRIPTION AND MAIN

CHARACTERISTICS 1.1 Introduction

This technical manual provides information, data, and procedures relevant to general description, operation, functional description, scheduled maintenance, troubleshooting, corrective maintenance and replacement parts list of the SRT Adapter Box.

For brevity of description, reference to the equipment in this manual, can also be made by means of the Manufacturer code name:

SRT Adapter Box SRTAB001.

The SRT Adapter Box controls both combined video and standard communication modes.

Combined video is communication in which the video start synchronisation (trigger) antenna signals (Azimuth, heading line) and communication priority (see para.3.2.3) are transmitted on the same RG59 cable (75 ohm).

Standard communication is where the video signal is received on an RG59 coaxial cable (75 ohm), the trigger on another RG59 coaxial cable (75 ohm), and the antenna signals (Azimuth, heading line) are transmitted on the TB1/TB2 terminal strips.

SRT ADAPTER BOX

OPERATION

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CHAPTER 2 OPERATION

The SRT Adapter Box has not been provided with commands or controls and therefore, this chapter is not applicable.

SRT ADAPTER BOX

FUNCTIONAL DESCRIPTION

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CHAPTER 3 FUNCTIONAL DESCRIPTION

3.1 Introduction This chapter provides a functional and detailed description of the main functions and operations performed by the SRT Adapter Box.

3.2 Functional Description The SRT Adapter Box (Chapter 9, Figure 9.1) performs the following functions:

• Ensures adequate power supply level (of 50 V) for the TRTX even with long cable lengths. A 480W AC/DC power supply with universal input from 85 VDC to 250 VDC is located on the right part of the box.

• Safety switch location to interrupt the antenna rotation during maintenance.

• SRT adapter board serving as a decoder to interface with the SRT (TXRX) with a console and standard communication or as a buffer box unit (buffer and signal repeater).

3.2.1 Buffer Box Unit (Figure 3.2)

If used as a Buffer Box Unit, all input signals are buffered while for outputs, more specifically, if the J11 jumper is set to TR-EXT, the external trigger signal is buffered and will exit on the female coax connector J4

In the same way, this configuration also applies to antenna signals (HL,ACP) setting the jumpers J1 and J2 to EXT.

In case of serial transmission, it is necessary to set the jumpers J7 or J8 to receive the TXRX and J3 or J6 in case of reception from the radar console, depending whether these are 232 or 422.

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3.2.2 Decoder (Figure 3.2)

In the case of the Decoder, the combined video signal is buffered, amplitude and adjusted, using the Gain Adj (R31) potentiometer, sampled inside the FPGA (U16) .

In this case, the combined video (see parag.3.2.3) from the SRT (TXRX) is decoded into standard communication for the console. In fact, the sole inputs will be the coax video connector on J13 and the TB2 terminal strip (with the serials, power on and safety switch) given that the antenna signals HL and ACP pass through the combined video signal. The FPGA (U16) then samples and quantize the data of the whole signal. The trigger is generated inside the FPGA (U16) and the HL and ACP jumpers need to be set to VCOMB.

Test (only decoder)

In case of malfunction or error on Heading line, azimuth, trigger and serials, it is possible to close the jumper J19. The FPGA will simulate these signals, generating them from the inside.

In case of a positive system response, this means that the error is generated by the TXRX (in case the board is being used as a Decoder).

If the problem persists, contact the nearest service department, refer to the website: pro.simrad-yachting.com and look up support.

N.B.: In case several consoles are connected to one another, it is necessary to place the Adapter box at the end of the chain, since the termination of the video is present on this box by default.

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3.2.3 SRT - Console Transmission Format

Figure 3.1 Trigger Frame Timi

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TB2

TB4

SAFETY

SW ITCH

FROM

TXRX

SAFE

TY S

W

TO

CONSOLE

Serial select232/422 (J7 o J8 e J3 o J6)

J1HL

ACPHL - OUT

ACP - OUT

TB1

FPGA (U16)

HL

VCOM

B

RX

TXTR ACP J2

VCOMBEXT

VCOM

BJ11

J4

TRIG - OUT

J12

TRIG - IN

J13

TXRX VIDEO

EXT

J5

CONSOLE VIDEO

J19

TEST

EXT

Figure 3.2 Block diagram

SRT ADAPTER BOX

PREVENTIVE MAINTENANCE

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CHAPTER 4 PREVENTIVE MAINTENANCE

4.1 Introduction Normally this Chapter provides the necessary information to execute the preventive maintenance operations which must be carried out in order to ensure the equipment full efficiency. In the case of the SRT Adapter Box, these particular procedures are not scheduled.

What is required from the operator is to inspect the equipment carefully and notice every possible anomaly, such as the integrity of the equipment, the presence of rust, removal of the paintwork, partial loosening of the screws. The operator is also required to clean the equipment and remove any dust, ash and grease, if necessary, using soft cotton and alcohol. Caution must be taken not to use solvent to clean plastic parts.

Take special care to ensure the cooling fans near the vents (10) (Chapter 9, Figure 9.4) are not blocked by dust. Clean them by blowing through with compressed air.

SRT ADAPTER BOX

TROUBLESHOOTING

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CHAPTER 5 TROUBLESHOOTING

5.1 Introduction

5.1.1 General

This chapter provides the procedures to be followed in order to locate the faulty component when a problem arises in the SRT Adapter Box.

5.1.2 Organization

The troubleshooting procedures are described by means of flow charts. When the faulty component is located, refer to Chapter 6 for its replacement.

5.1.3 Personnel

The personnel involved in the troubleshooting procedures must be skilled technicians and must have good knowledge of the equipment.

5.1.4 Tools and Instruments

For the execution of the troubleshooting procedures, besides the usual tools (screwdrivers, pliers, etc.), the following instruments are required:

Table 5.1.1 - List of Recommended Instruments Pos. Description Type Note

1

Digital Multimeter

CHAUVIN ARNOUX CPA 9651 (3:5)

or equivalent

2 Set of screwdrivers and socket wrenches

Insulating handle

3 Oscilloscope 2 Channels, 100 MHz

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TROUBLESHOOTING

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5.2 Troubleshooting Procedures

5.2.1 Safety Precautions

WARNING

SET THE SAFETY SWITCH TO OFF AND AFFIX A NOTE READING “WORK IN PROGRESS - DO NOT SWITCH ON

WARNING

OPERATE ON THE TXRX UNIT WITH CARE BECAUSE OF HIGH VOLTAGES AND HIGH POWER

5.2.2 Preliminary Check

• Check if the power (11) is connected and the red light of the main switch (1) is turned on (Chapter 9, Figure 9.4).

• Check that J13, TB2, TB1, J4, and J5 are properly connected according to the installation diagram (Chapter 9, Figure 9.5).

• Make sure the safety switch is turned on (4) (Chapter 9, Figure 9.2).

• Check that all jumpers are set in the correct mode (serial mode 232/422, trigger/HL/Acp ext-Vcomb) (Chapter 9, Figure 9.5).

.

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TROUBLESHOOTING

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5.2.3 Troubleshooting Operations The following table describes the failures that can happen during operation.

PRO

BLEM

FO

UN

D

SRT

Adap

ter b

ox is

po

wer

ed-o

ff N

o He

adin

g lin

e

No

trig

ger

No

vide

o

No

Azim

uth

Seria

l com

mun

icat

ion

prob

lem

Le

d D9

is re

ad B

linki

ng a

nd

led

D10

is o

ff Le

d D1

0 is

read

fixe

d an

d Le

d D9

is g

reen

blin

king

LED

D9 is

gre

en b

linki

ng

and

led

D10

is fi

xed

gree

n

CONFIGURATION SRT_ADAPTER POTENTIAL CAUSE CHECK SOLUTION

X Buffer/Decoder Power supply is

missing Check if power is connected and the red light of the main

switch is turned on Turn-on Main Switch

X Buffer/Decoder One or more fuses

are broken Check the fuses on SRT_Adapter Replace the fuse on SRT_Adapter

X Buffer/Decoder The power supply

does not work Check that the power supply is damaged, by checking the

voltage output of the voltmeter. Replace the power supply

X Buffer/Decoder The power supply

does not work Check the correct operation of the cooling fans. Replace the power supply

X X X Buffer/Decoder Serial configuration

is wrong Check all serial interconnections and the correct settings

(J7/J8 and J3/J6) Set the Jumpers in the required

configuration

X X X X Decoder Insert Jumper J19 “TEST”, and check if the signal is present

If the signal is present and the SRT_Adapter working fine, then the

problem is on TXRX,

X X Buffer/Decoder Check if the Antenna is turning on the pedestal The antenna has probably been set on stop and the problem is on TxRx

X Buffer/Decoder Video-in signal is missing or with voltage too low

Check with an oscilloscope on TP9 If the signal is present check in

Input/Output Requirements table that the voltage is correct.

SRT ADAPTER BOX

TROUBLESHOOTING

988-10610-001 5-4

PRO

BLEM

FO

UN

D

SRT

Adap

ter b

ox is

po

wer

ed-o

ff N

o He

adin

g lin

e

No

trig

ger

No

vide

o

No

Azim

uth

Seria

l com

mun

icat

ion

prob

lem

Le

d D9

is re

ad B

linki

ng a

nd

led

D10

is o

ff Le

d D1

0 is

read

fixe

d an

d Le

d D9

is g

reen

blin

king

LED

D9 is

gre

en b

linki

ng

and

led

D10

is fi

xed

gree

n

CONFIGURATION SRT_ADAPTER POTENTIAL CAUSE CHECK SOLUTION

X X Decoder Video-in is

disconnected or missing

Check the interconnection of Video in Connect the Video-in

X Buffer/Decoder Standard operation The SRT_Adapter is working fine. The problem is on TXRX or in your console

X X X X X X Buffer/Decoder SRT_Adapter is faulty Replace the SRT_Adapter

X X X X X X Buffer/Decoder Contact the nearest service department, refer to the website: pro.simrad-yachting.com and look up support.

SRT ADAPTER BOX

CORRECTIVE MAINTENANCE

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CHAPTER 6 CORRECTIVE MAINTENANCE

6.1 General

6.1.1 Introduction

This chapter provides the procedure, which must be followed in order to replace a faulty component of the SRT Adapter Box according to the troubleshooting procedures of Chapter 5.

6.1.2 Safety Precautions

If not otherwise specified in the procedures during the corrective maintenance operations, the following safety rules must be followed:

− each maintenance operation must be carried out only after the equipment has been switched off

− before removing any component, make sure the spare part is available

− check the integrity of the spare part and, if possible, perform a functional test

WARNING

SET THE MAIN BREAKER OF THE EQUIPMENT TO OFF AND AFFIX A NOTE, READING <<WORK IN PROGRESS - DO NOT SWITCH ON>>

6.1.3 Personnel

The replacement operation must be carried out exclusively by skilled personnel with a good knowledge of the equipment.

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6.2 Corrective Maintenance Procedures

6.2.1 Power Supply Replacement a) Required Tools

− Set of open wrenches

− Set of screwdrivers b) Removal of Cover (Chapter 9, Figure 9.2)

1. Set the breaker to OFF (Chapter 9, Figure 9.4 pos. 1), cutting off power to the equipment.

2. Open the lid of the box (1) taking out the 6 fastening screws (3) from the support (2).

c) Removal of the Power Supply (Chapter 9, Figure 9.3)

1. Using a suitable open wrench, loosen and remove the screws (4) fixing the power supply support (pos. 2) to the unit.

2. Using a suitable open wrench, loosen and remove the screws (pos. 4) fixing the power supply support (pos. 5) to the support (pos. 2).

3. Remove the screws (3) that fasten the Power Supply (pos. 1).

d) Installation 1. Check the integrity of the new Power Supply 2. To install the Power Supply, perform the removal operations in

reverse order

6.2.2 Line Filter Replacement a) Required Tools


− Set of screwdrivers b) Removal of the Cover (Chapter 9, Figure 9.4)

1. Set the breaker to OFF (pos.1), cutting off power to the equipment.

2. Open the lid of the box (1) taking out the 6 fastening screws (3) from the support (2) (Chapter 9, Figure 9.2).

c) Removal of the Power Supply support (Chapter 9, Figure 9.3) 1. Using a suitable open wrench, loosen and remove the screws

(pos.4) fixing the power supply support (pos.5) to the support (pos. 2).

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d) Removal of the Line Filter (Chapter 9, Figure 9.4)

1. Using a suitable open wrench, loosen and remove the two

screws (2) fixing the line filter (3). 2. Disconnect the four fastons (9). 3. Remove the line filter (3) from the support.

c) Installation

1. To install the line filter, perform the removal operations in reverse order.

6.2.3 SRT-Adapter Board replacement a) Required Tools



1. Set the breaker to OFF(Chapter 9, Figure 9.4, pos. 1), cutting off power to the equipment.

2. Open the lid of the box (1) taking out the 6 fastening screws (3) from the support (2).

b) Removal of the SRT Adapter Board (Chapter 9, Figure 9.4)

1. Use a Phillips screwdriver to remove the 6 screws (4) fastening the board SRT (5) to the power support.

2. Replace the old board with the new one provided. c) Installation

1. Check the integrity of the new SRT Adapter Board 2. To install the SRT adapter, perform the removal operations in

reverse order

SRT ADAPTER BOX

PARTS LIST

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CHAPTER 7 PARTS LIST

7.1 Introduction This chapter provides the list of the SRT Adapter Box replacement parts.

7.1.1 Parts List

The parts list is divided into major assemblies. All parts attached to the assemblies are listed in Parts List Tables. The Parts List Tables consist of five columns as follows:

− Column 1: Number of Figure

− Column 2: POS. (Position)

− Column 3: DESCRIPTION: the column includes the descriptive identification data of the replacement part

− Column 4: SPECIFICATION NUMBER OR TYPE: the column reports the specification number or the type of the replacement part assigned by the supplier

− Column 5: REQUIRED QUANTITY (N): the column indicates, for each replacement part, how many of them are assembled on the equipment

7.1.2 Part Location Illustration

The figures in Chapter 9 provide the location of the parts. The position numbers of the items shown in the figure are referenced in the related Parts List Tables.

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PARTS LIST

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7.2 Parts List Table

Table 7.1 - Parts List

Figure Pos. Description

Drawing Specification Number or Type

Required Quantity (N)

9.2 SRT ADAPTER BOX ASSY 304370A1 1

9.3 1 POWER SUPPLY 90A856P001 1

9.4 1 MAIN SWITCH 56W833P005 1

9.2 4 SELECTOR ANTENNA SWITCH 58R598P001 1

9.4 3 LINE FILTER 68F149P004 1

9.4 5 SRT ADAPTER BOARD 973361A2 1

9.8 1 FUSE 54F010P023 2

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INSTALLATION

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CHAPTER 8 INSTALLATION

This chapter explains the installation and connection procedures for the connections on the SRT Adapter Box board. 8.1 Preliminary operation

a) Required Tools

− Set of open/ closed wrenches


1. Set the breaker to OFF(Chapter 9, Figure 9.4pos. 1), cutting off power to the equipment.

2. Turn the selector (4) to the “antenna stop” position 3. Open the lid of the box (1) taking out the 6 fastening screws (3)

from the support (2). C) Removal of the cable fastening bracket (Chapter 9, Figure 9.4)

1. Remove the cable fastening bracket (6) using an Allen key to remove the 3 fastening screws (7). This will free the block supporting the cables (8)

8.2 Transmitter cable installation

8.2.1 Combined video cable installation (Chapter 9, Figure 9.6)

1. Connect the coaxial cable from the TXRX to the female J13

connector on the board. 2. Connect the shielded cable to the TB2 terminal strip and to the

power (POWER SUPPLY as marked in the reference wiring diagram).

8.2.2 Standard communication cable installation (Chapter 9, Figure 9.6)

1. Connect the coaxial cables from the external TXRX to the

female J13 connector for video signal and J12 for trigger signal 2. Connect all the antenna signals and TXRX serials to the TB2

terminal strip with 422 configuration or (TX232;RX) (232 configuration), as marked in the reference wiring diagram.

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INSTALLATION

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8.3 Console cable installation

8.3.1 Combined video configuration (Chapter 9, Figure 9.6)

1. Connect the coaxial cable of the video console cable to the J5 female connector on the board.

2. Connect the remaining shielded cables to the TB1 terminal strip with configuration 422 or configuration 232 (see Jumpers SRT Adapter Chapter 9 Figure 9.5).

8.3.2 Standard communication configuration (Chapter 9, Figure 9.6)

1. Connect the coaxial cables of the video console cable to the female J5 connector for video signal and to the J4 connector for signal trigger on the board.

2. Connect the remaining shielded cables to the TB1 terminal strip as marked in the reference wiring diagram.

8.3.3 Jumper configuration on SRT Adapter (Chapter 9, Figure 9.5)

Once the types of configuration described previously have been made on the SRT Adapter board, use the description provided here below to check the exact layout of the jumpers. The SRT Adapter Box can also be used as a buffer box unit whit on alternate jumper setting.

Description of the SRT Adapter Jumpers:

1. J1 - HL-EXT/HL-VCOMB = External Heading Line / Heading Line from Decoder Chip.

Should be set to HL-VCOMB (if connected in combined video mode).

Should be set to HL-EXT when connected as buffer box unit.

2. J2 - ACP-EXT/ACP-VCOMB = External Antenna Clock Pulse / Antenna Clock

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INSTALLATION

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Should be set to ACP-VCOMB (if connected in combined video mode).


3. J11 - TR-EXT/TR-VCOMB = External Trigger / Trigger from Decoder Chip.

Should be set to TR-VCOMB (if connected in combined video mode).


CONSOLE RX SELECTION

These are alternative jumpers, only one should be set.

1. J3 - RX232 = Display transmission received on RX pin of TB1 (RS-232)

2. J6 - RX422 = Display transmission received on RX422+/RX422- pin of TB1 (RS-422)

TXRX RX SELECTION

There are other Jumpers; only one needs to be set.

1. J7 - RX232 = RS-232 Signal from TXRX TB2 in buffer box unit configuration .

Display reception sent to TX232(RS-232) or TX422+/TX422-(RS-422) pins of TB1.

2. J8 - RX422 = RS-422 Signal from TXRX TB2 in buffer box unit configuration .

Display reception sent to TX232(RS-232) or TX422+/TX422-(RS-422) pins of TB1.

3. J9 - MICRO = Not used . Always open.

4. J10 - DECODER = TX signal from Decoder Chip. Display reception sent to TX232(RS-232) or TX422+/TX422- (RS-422) pins of TB1.

5. J17 – Not used. Must always be set to Console.

6. J16 = Not important.

7. J19- Test= Used for debugging (see test parag.3.2.2) leave it always open during normal operation.

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INSTALLATION

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INFO ABOUT LEDS:

1. D9 - TX Green LED

It switches on when the serial data has been received from TXRX/Decoder.

2. D9 - RX Red LED

It switches on when the serial data has been received from the RADAR Console.

3. D10 - TOE Green LED.

It switches on when there is communication between TXRX and the DECODER. On TOE TP5 Test Point there is a square wave with half PRF frequency.

4. D10 - PE Red LED.

It switches on when there is a communication error between TXRX and DECODER. On PE TP6 Test Point, the signal becomes high for each error received.

8.4 Preliminary check (Chapter 9, Figure 9.4) At the end of the configuration, refit the cables fastening bracket (6) using an Allen key to tighten the 3 fastening screws (7) and carry out the removal steps, as described in paragraph 6.2, in reverse order.

SRT ADAPTER BOX

INSTALLATION

988-10610-001 8-5

8.5 Input/Output Requirements SRT

Adapter

8.5.1 Input/Output requirements combined video decoder

Feature Characteristics

Power Voltage Consumption: Single phase 110 to 230 Vac 15% 130W nominal power consumption 380W peak.

Environmental Conditions

Operating: Temperature -15°C to +55 °C Storage: Temperature -20°C to +60 °C

In Out

Video: Polarity: Positive Positive

Amplitude: 1 to 4 Vpp adjustable 1 to 4 Vpp adjustable

Load: Terminated 75 Ω (always present on PCB)

Terminated 75 Ω (always present on PCB)

Bandwidth: 24 MHz (-3 dB) 24 MHz (-3 dB)

Trigger: Polarity: Positive

Amplitude: TTL to 8 V


PRF: 3000 – 1500 – 750 Hz

Pulse width: 1.28 uS (min.)

Serial Interface: Signal Standard:

RS232 terminated 3 KΩ RS422 terminated 120 Ω Baud Rate 4800

Position Data: Voltage value: 4 to 11 V 4096 pulses per antenna revolution Load: ≥ 2 K Pulse whit>8ns

Heading line: Voltage value:

4 to 11 V

Load: Load: ≥ 2 KΩ

Pulse width: > 80 ns

SRT ADAPTER BOX

INSTALLATION

988-10610-001 8-6

8.5.2 Buffer box unit input/output requirements

Feature Characteristics

Power Voltage Consumption: Single phase 110 to 230 Vac 15%, 130W nominal power consumption 380W peak.

Environmental Conditions

Operating: Temperature -15°C to +55 °C Storage: Temperature -20°C to +60 °C

In Out

Video: Polarity: Positive Positive

Amplitude: 1 to 4 Vpp adjustable 1 to 4 Vpp adjustable



Bandwidth: 24 MHz (-3 dB) 24 MHz (-3 dB)

Trigger: Polarity: Positive Positive

Amplitude: TTL to 15 V (peak) TTL to 8 V



PRF: 3000 – 1500 – 750 Hz 3000 – 1500 – 750 Hz

Pulse width: 1,28 uS (min.) 1,28 uS (min.)

Serial Interface: Signal Standard:

RS232 terminated 3 KΩ RS422 terminated 120 Ω Baud Rate 4800

Position Data: Voltage value: 4 to 11 V 4096 pulses per antenna revolution Load: ≥ 2 K Pulse whit>8ns

Heading line: Voltage value:

4 to 11 V

Load: Load: ≥ 2 KΩ

Pulse width: > 80 ns

SRT ADAPTER BOX

FIGURES

988-10610-001 9-1

CHAPTER 9 FIGURES

This chapter contains the images of the SRT Adapter Box which are referred to during installation and maintenance procedures.

SRT ADAPTER BOX

FIGURES

988-10610-001 9-2

300(minimum distance to the floor)

IP 20Weight 6Kg

400370

360

320

28

FRONT VIEW

116

SIDE VIEW

4

ø 9 (for M8 screws or bolts)

BOTTOM VIEW

System cables inputGrounding bolt

Mainline input

Figure 9.1 SRT Adapter Box layout

SRT ADAPTER BOX

FIGURES

988-10610-001 9-3

Figure 9.2 SRT Adapter Box Unit assy

1

2

3

4

3

SRT ADAPTER BOX

FIGURES

988-10610-001 9-4

Figure 9.3 SRT Adapter Box power supply

3

3

4

5

1

2

SRT ADAPTER BOX

FIGURES

988-10610-001 9-5

Line filter

Figure 9.4 SRT Adapter Box internal view

5

4

7

8

6 1

4

3

2

9

10

11

SRT ADAPTER BOX

FIGURES

988-10610-001 9-6

SRT ADAPTER BOX

SRT ADAPTER BOARD

TB1

ACPGNDHL

R422+T422-T422+

R422-TX232GND

CONSOLE VDJ5

10

9-138

+V+V-V-V -VL

GND

+VN

1 RG59 COAXIAL BLKCOLOURN. CABLE TYPE

55X456P001 CABLE

2 RX174 COAXIAL BLK3 RED4 BLK5 RED6 BLK7 G/Y8 BLUE9 BLK10 WHT11 BLK12 GRN13 BLK

1,5 mm² SINGLE CORE1,5 mm² SINGLE CORE2,5 mm² SINGLE CORE2,5 mm² SINGLE CORE2,5 mm² SINGLE CORE

2x0,35 mm² SHIELDED TWISTED PAIR



0,35 mm² SINGLE CORE WHT16

2x0,35 mm² SHIELDED TWISTED PAIRBLK15RED14

17 0,35 mm² SINGLE CORE BLUE18 0,35 mm² SINGLE CORE RED

NOTES:

CHASSIS GROUNDED TO STEEL OFSHIPS SUPERSTRUCTURE

CONNECT THE CABLE SHIELD AND INNERSSHIELD TO THE CABLE HOLDER

RXGNDPWRX

GNDTX232R422-R422+T422-

GNDACP

T422+

SF SWSF SWHLIN

TB2

GNDPWON

12

4 6 3 5

1415

111415

POWER SUPPLY1718

X PREWIRED 2 m

INPUT MAIN LINE

EXT

CHAS

SIS

X

J4TR OUTTR IN

J12

1

J13TXRX VD

GROUND7STUD STUD

GROUND7

J42 1

J5

CABLE MAX LENGHT 100 m

J4/J5 CONNECTION

CABLE UP TO 300 m

J5ADD. VD1

J4

CABLE

55X456P001 55C128P005ADDITIONAL VIDEO CABLE

55X456P001 TO X-BAND RADAR PROCESSOR

TO X-BAND RADAR PROCESSOR

FROM SHIPS EMG. SUPPLYCONNECT THE CABLE SHIELD TO THE CABLEHOLDER

FROM X-BAND DOWN-MAST TRANSCEIVER (SEE SHEET N. 1)

Figure 9.5 Connection diagram remote SRT X-band UP-mast radar sensor

SRT ADAPTER BOX

FIGURES

988-10610-001 9-7

SRT ADAPTER BOX

SRT ADAPTER BOARD

TB1

ACPGNDHL

R422+T422-T422+

R422-TX232GND

CONSOLE VDJ5

+V+V-V-V -VL

GND

+VNRX

GNDPWRX

GNDTX232R422-R422+T422-

GNDACP

T422+

SF SWSF SWHLIN

TB2

GNDPWON

4 6 3 5

1415

POWER SUPPLY

PREWIRED 2 m

INPUT MAIN LINE

EXT

CHAS

SIS

J4TR OUTTR IN

J12

1

J13TXRX VD

GROUND7STUD

55X456P001

FROM SHIPS EMG. SUPPLY


INSTALLATION CABLES FOR COMBINED VIDEO INSTALLATION CABLES FOR STANDARD COMUNICATION

SRT ADAPTER BOX

SRT ADAPTER BOARD

TB1

ACPGNDHL

R422+T422-T422+

R422-TX232GND

CONSOLE VDJ5

+V+V-V-V -VL

GND

+VN

RXGNDPWRX

GNDTX232R422-R422+T422-

GNDACP

T422+

SF SWSF SWHLIN

TB2

GNDPWON

4 6 3 5

1415

POWER SUPPLY

PREWIRED 2 m

INPUT MAIN LINE

EXT

CHAS

SIS

J4TR OUTTR IN

J12

1

J13TXRX VD

GROUND7STUD

55X456P001



1210111415

1718

1114

1718

15

10

89-13

Figure 9.6 Installation of transmitter cables for combined video/ Standard comunication

SRT ADAPTER BOX

FIGURES

988-10610-001 9-8

INSTALLATION CONSOLE CABLES FOR COMBINED VIDEO INSTALLATION CONSOLE CABLES FOR STANDARD COMUNICATION

SRT ADAPTER BOX

SRT ADAPTER BOARD

TB1

ACPGNDHL

R422+T422-T422+

R422-TX232GND

CONSOLE VDJ5

10

9-138

+V+V-V-V -VL

GND +VN

RXGNDPWRX

GNDTX232R422-R422+T422-

GNDACP

T422+

SF SWSF SWHLIN

TB2

GNDPWON

12

111415

POWER SUPPLY1718

X PREWIRED 2 m

INPUT MAIN LINE

EXT

CHAS

SIS

X

J4TR OUTTR IN

J12

J13TXRX VD

GROUNDSTUD STUD

GROUND7

55C128P005ADDITIONAL VIDEO CABLE




SRT ADAPTER BOX

SRT ADAPTER BOARD

TB1

ACPGNDHL

R422+T422-T422+

R422-TX232GND

CONSOLE VDJ5

10

9-13

+V+V-V-V -VL

GND +VN

RXGNDPWRX

GNDTX232R422-R422+T422-

GNDACP

T422+

SF SWSF SWHLIN

TB2

GNDPWON

111415

POWER SUPPLY1718

X PREWIRED 2 m

INPUT MAIN LINE

EXT

CHAS

SIS

J4TR OUTTR IN

J12

J13TXRX VD

GROUNDSTUD STUD

GROUND7

55C128P005ADDITIONAL VIDEO CABLE




Figure 9.7 Installation of console cables for combined video/ Standard comunication

SRT ADAPTER BOX

FIGURES

988-10610-001 9-9

Figure 9.8 SRT Adapter Board

1

*988

-106

10-0

01*

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