Installation guide

8620-A2-GN20-50 June 2004 A-1

Pinouts

8-Pin Modular Connector for Alarm Relay Interface

The 8-pin interface for the Alarm Relay Interface (ALARM) connection has the

following pin assignments.

8-Pin Modular Connectors for Clock A and Clock B

When an SCP card is installed, the Clock A and Clock B connectors may be used

for system clocking. They have the following pin assignments:

Pin Number Use

1 Not used

2 Closed on major alarm

3 Common on major alarm

4 Open on major alarm

5 Closed on minor alarm

6 Common on minor alarm

7 Open on minor alarm

8 Not used

99-15322-02

Pin 1

Pin 8

ALM

Pin Number Use

1 Not used

2 Not used

3 Not used

4 Signal +

5 Signal –

6 Not used

7 Frame/Signal Ground

8 Not used

97-15449

Pin 1

Pin 8