Connecting The Interface Cable - 3Com 3C13701 Module Manual

3Com Router 5000 and Router 6000 v2.41
Module Guide
3BIT
4BIT
5BIT
6BIT
7BIT
8BIT
Caution:
It is recommended to select the DIP switch of Router 2 and 4-Port CE1/PRI MIM and
modules in this way: when connecting 75-ohm cable, flip BIT1-8 to ON, and when
connecting 120-ohm cable, flip BIT1-8 to OFF. Positions of DIP switches can only
be changed by the trained personnel.
By default, all of the DIP switches of Router 2 and 4-Port CE1/PRI MIM and modules
are factory-configured to ON, that is, the impedance of E1 interface is 75-ohm.

3.8.6 Connecting the Interface Cable

Multifunctional Interface Modules (Router 5000)
RxRing grounding
mode selection switch
RxShield grounding
mode selection switch
SxShield grounding
mode selection switch
3-38
ON
ON
ON
OFF: RxRing is
grounded via
capacitance.
ON: RxRing is
grounded directly.
-
-
Chapter 3
OFF
OFF
OFF
-
ON: RxShield is
grounded.
OFF: RxShield is not
grounded.
OFF: RxShield is
grounded via
capacitance
ON: RxShield is
grounded directly.