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5-7
Cisco MGX 8260 Hardware Installation Guide
78-10966-02
Chapter 5 Connecting the Cables
Connecting E1 Cables via RJ-48 Connectors
Connecting E1 Cables via RJ-48 Connectors
Each E1 trunk consists of two pairs of tip and ring wires—one pair for transmit and one pair for receive.
A 4-wire cable terminated with RJ-48 connectors connects the trunks to the NSC back card. A cable
wiring diagram is provided in
Appendix A, “Cable and Connector Reference.”
To connect E1 cables to the 120-ohm RJ-48 connectors on the NSC back card, follow these steps.
Note
Label each cable with identifying information suitable for tracking in the MGX 8260 configuration
database.
Step 1
Snap the first STP cable into a receptacle on an RJ-48 back card. (See
Figure 5-5
.)
Step 2
Connect the other end of the RJ-48 cable to a patch panel or other compatible communication equipment.
Step 3
Repeat
Step 1
and
Step 2
for other E1 lines.