Cisco BPX 8650, Installation And Configuration Manual

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14-8
Cisco BPX 8600 Series Installation and Configuration
Release 9.3.30, Part Number 78-12907-01 Rev. E0, May 2005
Chapter 14 Connecting Cables
Setting up the BME OC-12 Port Loop
Figure 14-5 Y-Cable for BXM T3/E3 Cards
To make a BXM T3/E3 connection, use the following procedure:
Step 1 At the back of the cabinet, route each cable up the inside of the cabinet, as applicable. If Y-cables are
used, the Y-cable connects to the corresponding connectors on adjacent cards.
Step 2
The Cisco cabinet has velcro tie-downs inside the cabinet to hold cabling in place. If using a Cisco
cabinet, pull the tie downs apart as applicable, place the routed cable in position, wrap the ties around
the cable and remake the loops by pressing the two sections together.
Step 3
Connect the cables to the applicable connectors on the T3/E3 line modules.
Remember, the RCV is an input to the BPX switch and XMT is an output from the BPX switch. The
ports are numbered from top to bottom
.
Step 4
For an open rack configuration in which Y-redundancy is not being used, an optional cable management
tray is available. This is helpful for routing cables when a number of DS3/T3 cards are installed resulting
a large number of cables to handle. For more information, see Chapter 12, “Installing the T3/E3 Cable
Management Tray.”
Setting up the BME OC-12 Port Loop
To set up the two ports on the OC-12 back card for the BME multicast card, connect both:
•
the transmit of port 1 to the receive of port 2
•
the receive to port 1 to the transmit of port 2
Thus, you have looped the two ports together as shown in Figure 14-6.
16''
4" Lengths
SMB
SMB
BNC
H10015