Specifications

X723-300151 2-6 Issue 2
37-way D-type Plug Pin No. Function
1,6,7,20,24,25 0V Connections
2 External status 2
21 External status 3
3 External status 4
22 External status 5
4 External status 6
23 PSU A Fail
5 PSU B Fail
8 COM }
26 N/O } System Alarm Relay
27 N/C }
28 COM }
9 N/O } Service Alarm Relay
10 N/C }
11 COM }
29 N/O } Prompt Alarm Relay
30 N/C }
31 COM }
12 N/O } Receive Attention
13 N/C } Relay
14 COM }
32 N/O } External Relay 1
33 N/C }
34 COM }
15 N/O } External Relay 2
16 N/C }
17 COM }
35 N/O } External Relay 3
36 N/C }
37 COM }
18 N/O } External Relay 4
10 N/C }
Normally Closed (N/C) is the de-energised/alarm state.
Table 2-1 Alarm Connector Pin Connections
PSU A and B fail inputs should be connected to the power shelf when
configured for redundant PSU operation as follows:
3200 37-way Power unit 9-way
D-type Connector D-type Connector
Pin 23 (PSU A Fail) Pin 1
Pin 5 (PSU B Fail) Pin 2