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Interface cable – H3C Technologies H3C MSR 50 User Manual

Page 208

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Figure 4-15 75-ohm FIC-IMA-8E1 panel

The following table describes the LEDs on the FIC-IMA-4E1/FIC-IMA-8E1 panel:

Table 4-12 LEDs on the FIC-IMA-4E1/FIC-IMA-8E1 panel

LED

Description

LINK

z

OFF means no link is present;

z

ON means a link is present.

ACT

z

OFF means no data is being transmitted or received;

z

Blinking means data is being received or transmitted.

Interface cable

The FIC-IMA-4E1 module provides four E1 ports and uses a 120-ohm or 75-ohm 4E1 conversion cable.
The two types of 4E1 conversion cables look similar. Both of them have a DB-68 connector at one end
for connecting the router. However, the 75-ohm 4E1 conversion cable contains eight coaxial cables and
the 120-ohm 4E1 conversion cable contains four twisted pairs.

The FIC-IMA-8E1 module provides eight E1 ports and uses a 120-ohm or 75-ohm 8E1 conversion
cable. The two types of 8E1 conversion cables look similar. Both of them have a DB-68 connector at
one end for connecting the router. However, the 75-ohm 8E1 conversion cable contains 16 coaxial
cables and the 120-ohm 8E1 conversion cable contains eight twisted pairs, as shown in the following
figures:

Figure 4-16 75-ohm 8E1 conversion cable

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