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3Com Router 5000 and Router 6000 v2.41
Module Guide
Chapter 3
Multifunctional Interface Modules (Router 5000)
3-33
Cable type
E1 75-ohm non-balanced coaxial cable
E1 120-ohm balanced twisted pair cable
120-ohm 4E1 conversion cable (4E1/4E1-F modules)
75-ohm 4E1 conversion cable (4E1/4E1-F modules)
Coaxial connector, network interface connector and 75-ohm to 120-ohm
adapter (with BNC connector)
Operating mode
E1, CE1, ISDN PRI (only supported by Router 2 and 4-Port CE1/PRI MIM)
FE1 (only supported by )
Services supported
1) Backup
2) Terminal access service
3) ISDN PRI (only supported by Router 2 and 4-Port CE1/PRI MIM)
3.8.3 Interface LEDs
The following figure illustrates a 2-port panel.
Figure 3-38 2-port panel
The following figure illustrates a 4-port module.
Figure 3-39 4-port panel
Description about the LEDs on E1/E1-F panels is given in the following table:
Table 3-20 Description about the LEDs on E1/E1-F panels
LED Description
LINK
ON means the carrier signal has been received.
OFF means no carrier signal has been received.