H3C Technologies H3C MSR 50 - Manual (Page 208)

4-13
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