Internal dip switches – H3C Technologies H3C MSR 50 User Manual

Page 140

Advertising
background image

3-36

Internal DIP switches

MIM-1E1/MIM-2E1/MIM-4E1 and MIM-1E1-F/MIM-2E1-F/MIM-4E1-F modules provide internal DIP
switches, and the setting of DIP switches decides the interface impedance and grounding mode.

Table 3-32 Correlation between DIP switches of MIM-1E1/MIM-2E1/MIM-4E1 and

MIM-1E1-F/MIM-2E1-F/MIM-4E1-F modules and E1 interface

Module

MIM-1E1/1E1-F

MIM-2E1/2E1-F

MIM-4E1/4E1-F

DIP

switch

S1

S1 S2 S1 S3 S4 S5

E1 interface

Interface
0

Interface 0

Interface 1

Interface 0

Interface 1

Interface 2

Interface 3

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:

Figure 3-41 Default setting of DIP switches for MIM-1E1/MIM-2E1/MIM-4E1 and

MIM-1E1-F/MIM-2E1-F/MIM-4E1-F modules

on

1

2

3

4

5

6

7

8

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 3-33 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.

Advertising
This manual is related to the following products: