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3Com Router 5000 and Router 6000 v2.41
Module Guide
Chapter 4 Flexible Interface Cards (Router 6000)
4-51
4.16.3 Panel and Interface LEDs
The following figures illustrate the Router 4-Port E1 IMA FIC (75-ohm) panels:
Figure 4-49 75-ohm Router 4-Port E1 IMA FIC panel
Figure 4-50 75-ohm panel
The following table describes the LEDs on Router 4-Port E1 IMA FIC panels:
Table 4-34 LEDs on Router 4-Port E1 IMA FIC panels
LED Description
LINK OFF means no link is present; ON means a link is present.
ACT
OFF means no data is being transmitted or received; blinking means data is
being received and/or transmitted.
4.16.4 Interface Cable
The Router 4-Port E1 IMA FIC card provides four E1 ports and adopts a 120-ohm or a
75-ohm 4E1 conversion cable. The two types of cables look similar. Both of them have
a DB-68 connector at one end for connecting the router. At the other end, however, the
75-ohm 4E1 conversion cable provides eight coaxial cable connectors; and the
120-ohm 4E1 conversion cable provides four twisted pair cable connectors.
The card provides eight E1 ports and adopts a 120-ohm or a 75-ohm 8E1 conversion
cable. The two types of 8E1 conversion cables are similar to the two types of 4E1
conversion cables except that the 75-ohm 8E1 conversion cable provides 16 coaxial
cable connectors and the 120-ohm 8E1 conversion cable provides eight twisted pair
cable connectors, as shown in the following figures: