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Cisco MGX 8950 Hardware Installation Guide
Release 3, Part Number 78-14147-02 Rev. A0, November 2002
APPENDIX
B
Cabling Summary
This appendix contains details on the Cisco MGX 8950 cabling.
Note In all cable references, the transmit direction is away from the system, and the receive direction is toward
the system.
T3 Trunk Cabling
The T3 trunk cable specifications for the SMB-8T3 back card are listed in Table B-1 and Table B-2.
Ta b l e B-1 Trunk Cables
Cable Parameter Description
Type 75-ohm coaxial cable (RG-59 B/U for short runs, AT&T 734A for
longer runs). Two per T3 line (XMT and RCV).
Max. Length 450 feet max. between the Cisco MGX 8950 switch and DSX-3.
Connector Terminated in male SMB. Rx is received from trunk; Tx is transmitted
to trunk.
Ta b l e B-2 T3 Connector Pin Assignments
Connector Description
Rx SMB Receive T3 from trunk
Tx SMB Transmit T3 to trunk