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Appendix a. connector wiring, Ethernet connectors, Alarm relay connector – RAD Data comm 10/100BaseT to STM-1/OC-3 Converter RIC-155 User Manual

Page 73: Appendix a connector wiring, A.1 ethernet connectors, A.2 alarm relay connector

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Alarm Relay Connector

A-1

Appendix A
Connector Wiring

A.1 Ethernet Connectors

RIC-155 includes two Ethernet ports designated ETH and MNG-ETH.

Table A-1

lists the pinout of the Ethernet connectors.

Table A-1. ETH and MNG-ETH Connector Pinout

Pin Designation

Function

Direction

1

RX+

Receive – positive lead

Input

2

RX–

Receive – negative lead

Input

3

TX+

Transmit – positive lead

Output

6

TX–

Transmit – negative lead

Output

4, 5, 7, 8

Not connected

A.2 Alarm Relay Connector

The RIC-155 alarm relay terminates in a 9-pin female connector, designated
ALARM.

Figure A-1

shows the pin functions. The relay positions are shown in the

non-energized (alarm active) state.

Table A-2

lists the pinout of the ALARM

connector.

Alarm Connector

Minor-NO

1

2

6

4

5

9

Major-NO

Major Alarm Relay

Minor Alarm Relay

Minor-NC

Major-NC

Minor-COM

Major-COM

Figure A-1. ALARM Connector Wiring