APPENDIX
BPX Switch Cabling Summary B-1
B
BPX Switch Cabling Summary
This appendix provides details on the cabling required to install the BPX switch.
Note In all cable references, the transmit direction is from the BPX switch, receive is to the BPX
switch.
Trunk Cabling
Trunk cables connect the customer DSX-3 crossconnect point or T3-E3 Interface Module to the BPX
switch at the LM-3T3 back card. Refer to Table B-1 for details.
Table B-1 Trunk Cables
Power Cabling
Power connections are made to the AC Power Supply Shelf or the DC Power Entry Module at the
rear of the BPX switch. Refer to Table B-2 and Table B-3. (next page) for acceptable cable and wire
types.
AC Powered Nodes
AC power cables may be provided by the customer or ordered from Cisco. Several standard cables
are available (see Table B-2). AC cables with other plugs or different lengths may be special ordered.
For users who wish to construct their own power cable, the cable must mate with an IEC320 16/20A
male receptacle on rear of the AC Power Supply Assembly.
Cable Parameter Description
Type: 75-ohm coax cable (RG-59 B/U for short runs, AT&T 734A for longer runs). Two per
T3/E3 line (XMT and RCV).
For European shipment of the BXM-E3 cards, in order to meet CE mark transient test
requirement (IEC1000-4-4), RG-17G double shielded SMB cable must be used.
Max. Length: 450 feet max. between the BPX switch and the DSX-3/E3 point.
Connector: Terminated in male BNC; Rx is receive from trunk, Tx is transmit to trunk.
