Comtech EF Data CRS-200 - Manual (Page 28)

Connector Pinouts CRS-200 Redundancy Switch
4–2 Rev. 1
4.2 System Alarms Connector - 25 Pin ‘D’ Type Female
Table 4-2 System Alarms Connector
Pin Description
1 Backup Traffic Modem Common
2 Backup Traffic Modem #9 – Normally Open
3 Backup Traffic Modem #7 – Normally Open
4 Backup Traffic Modem #5 – Normally Open
5 Backup Traffic Modem #3 – Normally Open
6 Backup Traffic Modem #1 – Normally Open
7 Ground
8 Form-C Fault Relay Common
9 Switch Unit Fault – Normally Closed
10 Modem Summary Unit Fault – Normally Closed
11 Modem Summary Tx Traffic Fault – Normally Closed
12 Modem Summary Rx Traffic Fault – Normally Closed
14 Backup Traffic Modem #10 – Normally Open
15 Backup Traffic Modem #8 – Normally Open
16 Backup Traffic Modem #6 – Normally Open
17 Backup Traffic Modem #4 – Normally Open
18 Backup Traffic Modem #2 – Normally Open
20 Audio Indicator (Gnd = Audio on Float = Audio off)
21 Switch Unit Fault – Normally Open
22 Modem Summary Unit Fault – Normally Open
23 Modem Summary Tx Traffic Fault – Normally Open
24 Modem Summary Rx Traffic Fault – Normally Open
25 13 19 No Connection
Note: Normally Open refers to the NON-FAIL state
4.3 IF Switch Control Connector - 25 Pin ‘D’ Type Male
Table 4-3 IF Switch Control Connector
Pin Description
4 Modem Select 1 (to IF Switch) *
5 Modem Select 3 (to IF Switch) *
8 Bridge/Backup Indicator (to IF Switch)
10 22 Fused +5V Supply
12 24 Fused +12V Supply
16 Modem Select 0 (to IF Switch) *
17 Modem Select 2 (to IF Switch) *
21 IF Switch Present (active high from IF Switch)
11, 13, 23, 25 Ground
1, 2, 3, 6, 7, 9, 14, 15,
18, 19, 20 No Connection
* Note: Modem Select 0-3 represent the binary address of the modem.