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External Alarm Cabling
Table B-14 RJ-45 Maintenance and Control Port Pin Assignments
Pin No.
1
2
3
4
5
6
7
8
External Clock Input Cabling
The MGX 8230 has two external clock input connectors: a T1 RJ-45 connector and E1 SMB connector.
T1 Clock Cabling
The clock port can accept a T1 or E1 BITS clock input. (See Table B-15)
Table B-15 7T1 Clock Cabling
Pin No.
1
2
3
4
5
6
7
8
External Alarm Cabling
The external alarm cable connects to the Alarm connector on the PXM-UI card. See
physical characteristics of the cable and
Table B-16 External Alarm Cabling
Cable Parameter
Interface
Cisco MGX 8230 Edge Concentrator Installation and Configuration
B-8
Name
Description
RTS out
Request to Send
DTR out
Data Terminal Ready
TxD
Transmit Data
GND
Signal Ground
GND
Signal Ground
RxD
Receive Data
DSR
Data Set Ready
CTS
Clear to Send
Name
Tx ring out
Tx tip out
Ground
Rx ring in
Rx tip in
No comment
Test point ring out
Test point tip out
Table B-17
Description
Dry-contact relay closure.
Appendix B
for the pinouts.
Release 1.1.31, Part Number 78-11215-03 Rev. B0, May 2001
Cable Specifications
Table B-16
for
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