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Connecting Network Cables
2-10 296-1011-202 Rel. 5.0, Doc. Rev. 02.01
CVX 600 Hardware Installation Guide
Connecting to E1 Interfaces
The E1-DAC-LTM provides 12 or 24 E1 ports and one port for connecting to an
external clocking device. To connect E1 cables to the E1 ports, and to connect the
E1-DAC-LTM to an external clocking device, follow this step:
Step Action
1 Plug the connectors into the receptacles.
Note: Using shielded cabling is an electromagnetic interference (EMI)
requirement for CVX 600 E1 network configurations.
Note: For UK installations using 75 ohm E1 coax, a balun is needed to
connect to the 120 ohm impedance of the CVX switch. Nortel does not
recommend a specific balun panel for this application.
Connect to the
telephone network.
CVX-0243A
Connect to the
external clocking
device (optional).
E 112
Clock
12
11
10
9
8
7
6
5
4
3
2
1
E 1 x 24
Clock
12
9
8
5
4
1
24
21
20
17
16
13
12 E1 ports
24 E1 ports
Connect to the
external clocking
device (optional).