Mocomtech CRS-300 operation manual System Alarms DB-25F Connector, System Alarms Connector

CRS-300 1:10 Redundancy Switch	Revision 16
Connector Pinouts	MN/CRS300.IOM

6.1.4System Alarms – DB-25F Connector

Table 6-3indicates 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

1Traffic Modem Online Status – Common Common for pins 2-6 and 14-18

14Traffic Modem #10 Online Status – Normally Open (Note 2)

2 Traffic Modem #9 Online Status – Normally Open (Note 2)

15Traffic Modem #8 Online Status – Normally Open (Note 2)

3 Traffic Modem #7 Online Status – Normally Open (Note 2)

16Traffic Modem #6 Online Status – Normally Open (Note 2)

4	Traffic Modem #5 Online Status – Normally Open (Note 2)	Unchanged
	17 Traffic Modem #4 Online Status – Normally Open (Note 2)

5Traffic Modem #3 Online Status – Normally Open (Note 2)

18 Traffic Modem #2 Online Status – Normally Open (Note 2)

6Traffic Modem #1 Online Status – Normally Open (Note 2)

19 No Connection

7Ground

20 Audio Indicator (Gnd = Auto On / Float = Audio Off)

8Form 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)

6–3