N E X S Y S ® C o m p o n e n t Te c h n o l o g y

DIODE PACK & TERMINAL BLOCKL O G I C & I N T E R F A C E

The Diode Pack and Terminal Block are 4-pin interface components developed as a part of NEXSYS® Component Technology. The Diode Pack is designed to replace external harness diodes and the Terminal Block eliminates the need for external splicing. Both the Diode Pack and Terminal Block components can be configured inside a VIVISUN® Compact or High Capacity switch body or inside a stand-alone NEXSYS Module for use behind the panel. The Diode Pack and Terminal Block can also be combined with electromechanical switches and other NEXSYS components to create a custom configuration that uniquely addresses the designer’s specific functional requirements. Each of the components is designed and tested in accordance with MIL-PRF-22885 and DO-160.

Diode Pack

Terminal Block

• Available with two commercial diodes or two military diodes

• 1 Amp average forward current• 4-pin component compatible with VIVISUN

Body or NEXSYS Module• Included in MIL-PRF-22885/108

• 5 Amp maximum current• 4-pin component compatible with VIVISUN

Body or NEXSYS Module• 10-pin, rail-mounted terminal blocks also

available• Included in MIL-PRF-22885/108

Data Sheet: DS-DP-13

NEXSYS® Module as shown contains

a Terminal Block, an 8-pin component and a Diode Pack

VIVISUN® High Capacity Body as shown contains a single switch pole, two 4-pin components and a Diode Pack

VIVISUN® Compact Body as shown contains a Terminal Block and a Diode Pack

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Diode Pack Terminal Block

External Terminal Blocks

A Diode Pack allows the integration of a dual-diode component within a VIVISUN Body or the NEXSYS Module. To increase flexibility, we offer both a commercial and a military version of the Diode Pack.

Benefits: Both the military and commercial version of Diode Pack features:

• Convenient 4-pin module replaces unused switch poles,• Operating Range -55°C to +85°C,• Insulation Resistance 5000 Mega ohms at +25°C,• Dielectric Withstanding 1,000 VRMS , and• Tested to RTCA DO-160 and MIL-STD-202 environmental, shock and

vibration standards.

How it works: The Diode Pack can be included internally in a VIVISUN Body or NEXSYS Module to eliminate the need for external diodes and simplify circuit design and installation labor.

Two versions of Diode Pack are available:

Commercial Diode Pack (DP2C):

• Two 1N6484 glass passivated diodes (Vishay® or equivalent) Consult manufacturer’s datasheet for detailed diode specifications.

• Working Voltage and Breakdown Voltage of +1,000 VDC• 1 Amp average forward current

Military Diode Pack (DP2M):

• Two 1N5621JANTX Hermetic glass sealed diodes (Microsemi or equivalent) Consult manufacturer’s datasheet for detailed diode specifications.

• JEDEC Registered diodes• Triple layer passivation• +800 VDC Working Voltage• +880 VDC Breakdown Voltage• 1 Amp average forward current• Inherently radiation hard

As a part of NEXSYS Component Technology, Applied Avionics offers an internal 4-pin Terminal Block that may be incorporated within either a VIVISUN switch/annunciator or a NEXSYS Module.

Benefits: The Terminal Block (TB4) features:

• Convenient 4-pin module, • Replaces unused switch poles,• Maximum current rating 5 Amps,• Operating Range -55°C to +85°C,• Insulation Resistance 5,000 Mega ohms at +25°C,• Dielectric Withstanding 1,000 VRMS, • Gold plated pins for low current reliability, and• Tested to RTCA DO-160 and MIL-STD-202 Environmental, shock and

vibration standards.

How it works: The Terminal Block (TB4) can provide an internal splice capability in a VIVISUN Body or NEXSYS Module to eliminate the need for external splice and common junction components.

See External Terminal Blocks below for dedicated 10-pin external rail mounted terminal blocks for designs with additional splicing requirements.

To accommodate designs that require additional dedicated external terminal blocks, Applied Avionics offers three versions of a 7.5 Amp, 10-pin, rail-mounted terminal block. These terminal blocks are external to a VIVISUN Body or a NEXSYS Module, and use different wire crimp termination contacts as specified below.

Configuration Military P/N AOI P/N

M81714/2-DA1(3) 22-017(1)

M81714/2-DB1(3) 22-018(1)

M81714/2-DC1(3) 22-019(1)

Crimp Contacts(2) M39029/1-101 22-120

(1) Terminals Blocks are supplied with crimp contacts and sealing plugs. Additional crimp contacts for dedicated terminal blocks can be ordered using AOI P/N 22-120.

(2) These crimp contacts are compatible with the dedicated external terminal blocks listed. All VIVISUN Body and NEXSYS Module components, including the 4-pin integrated terminal block (TB4), use MIL-C-39029/22-192 (AOI P/N 18-219) crimp contacts, ordered separately.

(3) Consult MIL-T-81714 and MIL-T-81714/2 for detailed product specifications; temperature range -65°C to +200°C, insulation resistance 5,000 Mega ohms @ +25°C, and dielectric withstanding 1,500 VRMS.

O V E R V I E WD I O D E PA C K & T E R M I N A L B L O C K

Compatibility: The Diode Pack and Terminal Block components are compatible with a wide range of proven products, including:

• Indicators, switches and Modules,• 3/4" LED caps and 1" x 1.2" LR3 LED caps,• 95-Series incandescent caps, and• the solderless connector plug termination system (See Table 1).

Overview: The Diode Pack and Terminal Block are two NEXSYS components designed to enhance avionics design flexibility. The Diode Pack and Terminal Block can be configured into either a) a Compact or High-Capacity Body with an illuminated lens cap, or b) a stand-alone, behind-the-panel electronic NEXSYS Module. The innovative NEXSYS Component Technology was developed to simplify operator interface and circuit complexity by providing the ability to internally integrate multiple combinations of NEXSYS components into a single envelope, including functionality such as:

• Switch poles (VIVISUN switch/annunciator),• Electronic switching,• Electronic sensing and detecting, and• Logic/interface devices.

A single 4-pin NEXSYS component like the Diode Pack or Terminal Block can be combined with up to three additional 4-pin NEXSYS components or can be combined with an 8-pin NEXSYS component to bring a customized solution to your application. See Table 5 and How To Order for a complete description of the various configurations.

NEXSYS Component Technology

DP-2

O V E R V I E WD I O D E PA C K & T E R M I N A L B L O C K

Table 2: Diode Pack (4-pin Component)

Table 3: Terminal Block (4-pin Component)

Table 1: Connector Plug

Table 5: NEXSYS Component Technology Overview

Two Commercial (DP2C) or Two Military (DP2M) Diodes

DP2C

DP2M

TB4

Note: Applied Avionics also offers external terminal blocks.

Compact Body

A, B, C, D, F, G Illumination Circuits

P/N 18-442

A1-A4, B1-B4

Switch Contacts or NEXSYS Component Contacts

(incl. Diode Pack and Terminal Block)

High Capacity Body and NEXSYS Module

A, B, C, D, F, G Illumination Circuits

P/N 18-440

H1-H4, J1-J4, K1-K4, L1-L4

Switch Contacts or NEXSYS Component Contacts

(incl. Diode Pack and Terminal Block)

The Diode Pack and Terminal Block components may be used in the following packaging options:

The VIVISUN switch body expands the capabilities of a standard pushbutton switch or indicator by utilizing the 4-pin Diode Pack and/or Terminal Block internally in thirteen distinct combinations of electromechanical switches, NEXSYS components, and “open” spacers. The Diode Pack and Terminal Block are compatible with either the Compact Body (based on a standard 2-pole housing) or High Capacity Body (based on a standard 4-pole housing).

The NEXSYS Module is a stand alone, behind-the-panel module that utilizes the 4-pin Diode Pack and/or Terminal Block in six distinct combinations of NEXSYS components and “open” spacers to provide functionality external to a standard switch envelope. The NEXSYS Module may be wired directly into the harness or may mount in a bracket or rail.

For complete descriptions of the combinations see How To Order, NEXSYS Component Technology Guide (DS-LCT-15) and the NEXSYS Module Configuration Guide (DS-LM-13).

Component Types

{SW} Switch PolesHigh reliability

MIL-PRF-8805/101 snap action switches. Gold contacts

(5 or 7) are required when combining with an

8-pin module. Single Break, Silver 1, Gold 5

Double Break, Silver 3, Gold 7

{8-Pin} ComponentsElectronic components, such as electronic latching, edge detectors, electronic rotary,

and defined logic.

{4-Pin} ComponentsElectronic components, such as solid state relays

and diode packs.

(0) Open Module“Open” spacer for

unoccupied pole positions. No termination pins.

See www.appliedavionics.com for all current NEXSYS component offerings.

Online Part Configuration

www.appliedavionics.com

The easy-to-use Online Configurator will ensure proper placement of all NEXSYS components and assist with full part numbering.

Visit us online today at www.appliedavionics.com.

Table 4: Operating Parameters

Description Parameters

Operating Parameters (Diode Pack and TB4 Terminal Block)

Insulation Resistance 5,000 Mega ohms @ +25°C

Dielectric Withstanding 1,000 VRMS

Operating & Non Op. Temp. -55°C to +85°C

Electrical Parameters

Diode Pack TB4 Terminal

BlockComm’l.

(1N6484)*Military

(1N5621JANTX)*

Current Rating (maximum) 1 Amp 1 Amp 5 Amps

Working Voltage +1,000 VDC +800 VDC n/a

Breakdown Voltage +1,000 VDC +880 VDC Peak n/a

* Consult manufacturer’s data sheet for detailed diode specifications.

Electrical and Environmental Performance

Meets or exceeds defined levels for RTCA/DO-160 and MIL-STD 202.

NEXSYS Module

VIVISUN Compact Body

VIVISUN High Capacity Body

DP-3

How To Order

H O W T O O R D E RD I O D E PA C K & T E R M I N A L B L O C K

Full Sample Part Numbers Sample Descriptions Sample Circuit Diagrams Connector Plugs

LED-FM-17-HE-E18CU * (1G1 SYS ON)LB (DP2C ; TB4)

LED Compact Body; including (1) Commercial Diode Pack, (1) Terminal Block, without a Connector Plug.

Compact Body configurations require Connector Plug 18-442 to be ordered separately. Replacing FM with GM denotes a part number with the Connector Plug included.

LM-1210-X-MAAKRLM (DP2M ; DL2/11/UU ; TB4)

NEXSYS Module; including (1) Military Diode Pack, (1) DL2 Defined Logic, (1) Terminal Block, without a Connector Plug.

X configurations require Connector Plug 18-440 to be ordered separately. Replacing X with E denotes a NEXSYS Module part number with the Connector Plug included.

* Refer to applicable Data Sheets for the LED-, LR3- and 95-Series for complete part number descriptions and options for the entire switch assembly.

Configurations with 4-pin NEXSYS ComponentsPosition Schematic Configuration Combinations

Compact Body

LB ( {4-pin} ; 0 ) LB ( {SW} ; {4-pin} ) LB ( {4-pin} ; {4-pin} )

High Capacity Body

LB ( {SW} ; {4-pin} ; 0 ; {SW} ) LB ( {4-pin} ; {4-pin} ; {4-pin} ; 0 )LB ( {SW} ; {4-pin} ; {4-pin} ; 0 ) LB ( {4-pin} ; {4-pin} ;{4-pin} ; {4-pin})

LB ( {SW} ; {SW} ; {4-pin} ; {SW} ) LB ( {SW} ; {4-pin} ; {4-pin} ; {4-pin} )LB ( {SW} ; {4-pin} ; {4-pin} ; {SW} )

High Capacity Body - with 8-Pin Component

LB ( {SW} ; {8-pin} ; {4-pin} ) LB ( {4-pin} ; {8-pin} ; 0 ) LB ( {4-pin} ; {8-pin} ; {4-pin} )

NEXSYS Module

LM ( {4-pin} ; 0 ; 0 ; 0 ) LM ( {4-pin} ; {4-pin} ; {4-pin} ; 0 )LM ( {4-pin} ; {4-pin} ; 0 ; 0 )

LM ( {4-pin} ; {8-pin} ; 0 ) LM ( {4-pin} ; {4-pin} ;{4-pin} ; {4-pin})LM ( {4-pin} ; {8-pin} ; {4-pin} )

Note: NEXSYS Components have specific postion priorities inside of a VIVISUN Body or NEXSYS Module that must be determined using the Online Part Configurator.

© 2019 APPLIED AVIONICS, INC. DS-DP-13 REV 2.0

LB ( __ ; __ ; __ )LJ & KH

{SW} (5 or 7 only) {8-pin}{4-pin}O- Open Code

We’ve made the accurate configuration of VIVISUN and NEXSYS products quick and easy.

Visit the Online Part Configurator at: www.appliedavionics.com/configuratorUsing the Online Part Configurator will ensure that the entire VIVISUN Body (including lens cap) or NEXSYS Module is configured properly by assigning the selected options into the proper pole positions. With the Part Configurator, you can e-mail complete part specifications and search part numbers. Registered users can also access a database of their previously configured parts.

For complete, manual part number configuration details on our VIVISUN switches and indicators, refer to the NEXSYS Component Technology Guide (DS-LCT-15); the datasheets for either the LED- (3/4” square with LED lighting), the LR3- (1” x 1.2” rectangular with LED lighting) or the 95-Series (3/4” square with incandescent lighting); and the datasheets for the desired NEXSYS components.

For complete, manual part number configuration details on our behind-the-panel NEXSYS Module solutions, refer to the NEXSYS Module Configuration Guide (DS-LM-13) and the datasheets for the desired NEXSYS components.

For up-to-date information on all available NEXSYS components, visit www.appliedavionics.com

Alternatively, these 3 configurations can be ordered as a High Capacity Body with two additional “open” positions.

Headquarters & USA Sales OfficeApplied Avionics, Inc. Telephone: 1-817-451-1141 3201 Sandy Lane Fax: 1-817-654-3405 Fort Worth, TX 76112 Toll-Free: 1-888-848-4786

E-mail: sales@appliedavionics.com

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International Sales OfficesSee ”Customer Support” at www.appliedavionics.com for a current listing and complete contact information for our international sales network, or e-mail the specific country address below:

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sales.uk@appliedavionics.com sales.italy@appliedavionics.com sales.france@appliedavionics.com sales.germany@appliedavionics.com

sales.israel@appliedavionics.com sales.brazil@appliedavionics.com sales.spain@appliedavionics.com sales.australia@appliedavionics.com

DP-4