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3Com Router 5000 and Router 6000 v2.41
Module Guide
Chapter 4 Flexible Interface Cards (Router 6000)
4-62
Table 4-42 LEDs on the Router 1-Port E1 Voice FIC panel
LED Description
LINK OFF means no link is present; ON means a link is present.
ACTIVE
OFF means no data is being transmitted or received on the interface and blinking
means data is being transmitted and/or received.
4.20.4 Interface Cable
Router 1-Port E1 Voice FIC cables are G.703-compliant 120-ohm balanced
twisted-pair cables, with a DB-15 connector at the router end and an RJ-45 connector
at the network end.
Figure 4-60 E1 120-ohm balanced twisted-pair cable
If you want a 75-ohm cable, you can use a 75-to-120-ohm adapter (with a BNC
connector at one end and an RJ-45 connector at the other end) as shown in the
following figure.
Figure 4-61 75-to-120-ohm adapter (with BNC connectors)
Note:
To extend E1 120-ohm balanced twisted-pair cables, use network connectors.
E1 120-ohm balanced twisted pair cables, network connectors, and 75-to-120-ohm
adapters are optional accessories; they are provided only when ordered.