Specifications

APPENDIX
Cabling Summary A-1
A
Cabling Summary
Introduction
This appendix provides details on the cabling required to install the MGX 8220 shelf.
NoteIn all cable references, the transmit direction is from the MGX 8220 shelf, receive is to the
MGX 8220 shelf.
T3 Trunk Cabling
Trunk cables connect the T3 port on the BNM backcard to the BNI T3 port on the collocated
BPX node. Refer to Table A-1 and Table A-2 for details.
TableA-1 Trunk Cables
TableA-2 T3 Connector Pin Assignments
Cable Parameter Description
Type: 75-ohm coax 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 BPX node and the MGX 8220 shelf.
Connector: Terminated in male BNC; Rx is received from trunk, Tx is transmitted to trunk.
Connector Description
Rx BNC Receive T3 from trunk
Tx BNC Transmit T3 to trunk