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Cisco MGX 8800/8900 Series Hardware Installation Guide
Releases 2 - 5.2, Part Number OL-4545-01, Rev. H0, May 2006
APPENDIX
B
Cable Specifications
This appendix provides cable requirements and pin assignments for cables used with Cisco MGX 8850
(PXM1E/PXM45), Cisco MGX 8850/B, Cisco MGX 8950, Cisco MGX 8830 and Cisco MGX 8830/B
multiservice switches and the Cisco MGX 8880 Media Gateway.
This appendix contains the following sections:
• Notes about Cables and Connectors, page B-1
• Control and Clock Cabling, page B-3
• External Alarm Cabling, page B-9
• Power Cabling, page B-11
• Redundancy Y-Cable, page B-14
• Trunk Cabling, page B-16
• Frame Relay Cabling, page B-17
• Illustrated Cable Guide, page B-22
Note The information in this guide does not apply to the Cisco MGX 8850 (PXM1) switch. For MGX 8850
(PXM1) cable information, refer to Cisco MGX 8850 Edge Concentrator Installation and Configuration,
Release 1.1.3 located at:
http://www.cisco.com/univercd/cc/td/doc/product/wanbu/mgx8850/1_1_31/instconf/index.htm
Notes about Cables and Connectors
This section contains general explanations about Cisco MGX cables.
Warning
For NEBS Level 3 compliance to GR-1089 (Second-Level Lightning Surge and Intra-building AC Power
Fault Requirements), shielded cables, grounded at both ends, must be used on all metallic interfaces.
In all cable references, the transmit (Tx) direction is away from the system, and the receive (Rx)
direction is toward the system.