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Dip switch – H3C Technologies H3C MSR 50 User Manual

Page 277

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4-82

E1 cable, coaxial connector, network connector, and 75-ohm-to-120-ohm adapter are all optional
accessories. Order them together with E1/FIC-2E1 and FIC-1E1-F/FIC-2E1-F. By default, they are not
provided.

DIP switch

FIC-2VE1 interface matches different types of impedance through an 8BIT DIP switch. By default, all
the 8 positions of the DIP switch are ON, as shown in the following figure:

Figure 4-106 Default setting of the DIP switches

on

1

2

3

4

5

6

7

8

8BIT description and settings of DIP switch are given in the following table:

Table 4-67 Description and settings of the internal DIP switch of FIC-2VE1

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

8BIT

Switch for RxShield
grounding options

OFF: RxShield grounding
via capacitor
ON: RxShield directly
grounding

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