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Interface cable – H3C Technologies H3C MSR 50 User Manual

Page 137

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Figure 3-36 MIM-4E1 panel

cE1/PRI

0

1

2

3

The following table describes the LEDs on MIM-1E1/MIM-2E1/MIM-4E1 and
MIM-1E1-F/MIM-2E1-F/MIM-4E1-F panels:

Table 3-31 Description of the LEDs on MIM-1E1/MIM-2E1/MIM-4E1 and

MIM-1E1-F/MIM-2E1-F/MIM-4E1-F panels

LED

Description

LINK

z

ON means the carrier signal has been received.

z

OFF means no carrier signal has been received.

ACTIVE

z

OFF means no data is being transmitted or received.

z

ON means data is being transmitted or received.

Interface cable

1) Interface cable of MIM-1E1/MIM-2E1 and MIM-1E1-F/MIM-2E1-F modules

MIM-1E1/MIM-2E1 and MIM-1E1-F/MIM-2E1-F interface cables are G.703-compliant cables (referred
to as E1 cables throughout the rest part of the manual). E1 cables are divided into two types: 75-ohm
unbalanced coaxial cables and 120-ohm balanced twisted pair cables.

z

75-ohm unbalanced coaxial cable

Figure 3-37 E1 75-ohm unbalanced coaxial cable

You can select a pair of coaxial connectors with a BNC receptacle at both ends that connect two
75-ohm unbalanced coaxial cables with BNC connectors. The coaxial connectors are used for the
extension connection with E1 75-ohm unbalanced coaxial cable.

z

120-ohm balanced twisted pair cable

At the router side, the connector of the cable is DB-15 (male); at the network side, the connector is
RJ-45, as illustrated in the following figure.

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