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Interface Card and Interface Module Manual
H3C MSR 20/30/50 Series Routers
Chapter 3 Multifunctional Interface Modules
3-24
By default, all the DIP switches for MIM-1E1/MIM-2E1/MIM-4E1 and
MIM-1E1-F/MIM-2E1-F/MIM-4E1-F modules are set to ON, as illustrated in the
following figure:
on
1
2
3
4
5
6
7
8
Figure 3-34
Default setting of DIP switches for MIM-1E1/MIM-2E1/MIM-4E1 and
MIM-1E1-F/MIM-2E1-F/MIM-4E1-F modules
Description of DIP switch settings is given in the following table for
MIM-1E1/MIM-2E1/MIM-4E1 and MIM-1E1-F/MIM-2E1-F/MIM-4E1-F modules:
Table 3-13
Description of DIP switch settings of MIM-1E1/MIM-2E1/MIM-4E1 and
MIM-1E1-F/MIM-2E1-F/MIM-4E1-F modules
DIP
Description
Configuration of
75-ohm
impedance
Configuration of
120-ohm
impedance
1BIT ON
OFF
2BIT ON
OFF
3BIT ON
OFF
4BIT ON
OFF
5BIT
75-ohm/120-ohm
selection switch
ON OFF
6BIT
RxRing grounding
mode selection
switch
OFF: RxRing is
grounded via
capacitance.
ON: RxRing is
grounded directly.
—
7BIT
RxShield
grounding mode
selection switch
—
ON: RxShield is
grounded.
OFF: RxShield is
not grounded.