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3Com Router 5000 and Router 6000 v2.41
Module Guide
Chapter 2 Smart Interface Cards
2-15
on
1
2
3
4
5
6
7
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 Description
75 -ohm
impedance
120 -ohm impedance
1BIT ON OFF
2BIT ON OFF
3BIT ON OFF
4BIT ON OFF
5BIT
Switch for
75-ohm/120-ohm
options
ON OFF
6BIT
Switch for RxRing
grounding mode options
OFF: RxRing
grounding via
capacitor
ON: RxRing directly
grounding
-
7BIT
Switch for RxShield
grounding options
-
ON: RxShield grounding
OFF: RxShield
ungrounding