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B-4
Cisco ME 3800X and ME 3600X Switch Hardware Installation Guide
OL-22168-01
Appendix B Connector and Cable Specifications
Connector Specifications
Figure B-7 Alarm Input Port Pinouts
BITS Port
Note We recommend using a shielded cable for the BITS port.
Table B-1 BITS RJ-45 Receptacle Pinouts
Pin Signal Direction Description
1 RX Ring Input Receive ring
2 RX TIP Input Receive (T1/E1)
3N/C
4 TX Ring Output Output ring
5 TX TIP Output Output (T1/E1)
6N/C
7N/C
8N/C
280950
23145678Pin Alarm connection
1
2
3
4
5
6
7
8
Alarm 1 input
Alarm 2 input
no connection
Alarm 3 input
Alarm 4 input
no connection
no connection
Alarm common