4 system alarms – db-25f connector – Mocomtech CRS-300 User Manual
Page 171
CRS-300 1:10 Redundancy Switch
Revision 16
Connector Pinouts
MN/CRS300.IOM
6–3
6.1.4
System Alarms – DB-25F Connector
Table 6-3 indicates the pinout for the DB-25F TMI System Alarms
connector.
Table 6-3. System Alarms Connector
Pin Description by Mode of Operation
Pin
“Show Fault” when Switch loses power (Default)
“Show No-Fault” when Switch loses power
1
Traffic Modem Online Status – Common
Common for pins 2-6 and 14-18
Unchanged
14 Traffic Modem #10 Online Status – Normally Open (Note 2)
2
Traffic Modem #9 Online Status – Normally Open (Note 2)
15 Traffic Modem #8 Online Status – Normally Open (Note 2)
3
Traffic Modem #7 Online Status – Normally Open (Note 2)
16 Traffic Modem #6 Online Status – Normally Open (Note 2)
4
Traffic Modem #5 Online Status – Normally Open (Note 2)
17 Traffic Modem #4 Online Status – Normally Open (Note 2)
5
Traffic Modem #3 Online Status – Normally Open (Note 2)
18 Traffic Modem #2 Online Status – Normally Open (Note 2)
6
Traffic Modem #1 Online Status – Normally Open (Note 2)
19 No
Connection
7 Ground
20 Audio Indicator (Gnd = Auto On / Float = Audio Off)
8
Form C Fault Relay – Common
Common for pins 9-13 and 21-24
21 Switch Unit Fault – Normally Closed
Switch Unit Fault – Normally Open
9
Switch Unit Fault – Normally Open
Switch Unit Fault – Normally Closed
22 Modem Summary Unit Fault –Normally Closed
Modem Summary Unit Fault –Normally Open
10
Modem Summary Unit Fault – Normally Open
Modem Summary Unit Fault – Normally Closed
23 Modem Summary Tx Traffic Fault – Normally Closed
Modem Summary Tx Traffic Fault – Normally Open
11
Modem Summary Tx Traffic Fault – Normally Open
Modem Summary Tx Traffic Fault – Normally Closed
24 Modem Summary Rx Traffic Fault – Normally Closed
Modem Summary Rx Traffic Fault – Normally Open
12
Modem Summary Rx Traffic Fault – Normally Open
Modem Summary Rx Traffic Fault – Normally Closed
25 Modem Summary DFM Fault – Normally Closed
Modem Summary DFM Fault – Normally Open
13
Modem Summary DFM Fault – Normally Open
Modem Summary DFM Fault – Normally Closed
Notes:
1.
“Normally” refers to the NON-FAILED state.
2.
Traffic Modem Online Status (Open = Online, Closed = Backup)