H3C Technologies H3C MSR 50 - Manual (Page 229)

4-34
Table 4-29 DIP switches and E1 interfaces of the FIC-E1/FIC-E1-F modules
Module FIC-1E1/FIC-1E1-F FIC-2E1/FIC-2E1-F FIC-4E1/FIC-4E1-F
DIP switch S1 S1 S2 S1 S2 S3 S4
Controlled E1
interface
Interface 0
Interface
0 Interface
1 Interfac
e 0 Interfac
e 1 Interfac
e 2 Interfa
ce 3
By default, all the DIP switch BITs are placed to the position of ON, as illustrated in the following figure:
Figure 4-41 Default setting of the DIP switches for the FIC-E1/FIC-E1-F modules
on
1
2
3
4
5
6
7
8
The following table describes how to set a DIP switch on the FIC-E1/FIC-E1-F modules:
Table 4-30 Setting DIP switches on the FIC-E1/FIC-E1-F modules
DIP switch 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 toggle
switch
ON OFF
6BIT
RxRing grounding mode
switch
OFF: RxRing is grounded
using capacitance.
ON: RxRing is grounded
directly.
—
7BIT
RxShield grounding
switch
—
z
ON: RxShield is
grounded.
z
OFF: RxShield is not
grounded.
8BIT
RxShield grounding
mode switch
—
z OFF: RxShield is
grounded using
capacitance.
z ON: RxShield is
grounded directly.