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3Com Router 5000 and Router 6000 v2.41
Module Guide
Chapter 2
Smart Interface Cards
on
1
2
3
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5
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8
Figure 2-14 Default setting of the DIP switches
8BIT description and settings of DIP switch are given in the following table:
Table 2-10 Description and settings of the internal DIP switch of SIC-ERRI/Router 1-Port Fractional E1
SIC
DIP switch
75 -ohm
Description
1BIT
2BIT
3BIT
4BIT
120 -ohm impedance
impedance
Switch for
75-ohm/120-ohm
options
5BIT
ON
OFF
ON
OFF
ON
OFF
ON
OFF
ON
OFF
OFF: RxRing
6BIT
grounding via
Switch for RxRing
grounding mode options
capacitor
-
ON: RxRing directly
grounding
7BIT
Switch for RxShield
grounding options
ON: RxShield grounding
-
OFF: RxShield
ungrounding
2-15