Internal Dip Switches - 3Com 3C13886 - Router OC-3 ATM SML Flexible Interface Card Installation Manual

3Com Router Module Guide

3.9.3 Internal DIP switches

The purpose of internal DIP switches of Router 4-Port ISDN-S/T MIM is to set the
matched resistance on an ISDN BRI S/T port. The setting of this switch (DIP S1)
decides the use of 100-ohm resistance on the ISDN BRI S/T port.
1
2
3
4
5
6
7
8
Figure 3-47 Default setting of DIP switch for Router 4-Port ISDN-S/T MIM module
Table 3-24 Configuration of DIP switches for Router 4-Port ISDN-S/T MIM module
DIP switch
1. 2BIT
3. 4BIT
5. 6BIT
7. 8BIT
on
Description
ON Uses 100-ohm resistance
Not uses 100-ohm
OFF
resistance
ON Uses 100-ohm resistance
Not uses 100-ohm
OFF
matched resistance
ON Uses 100-ohm resistance
Not uses 100-ohm
OFF
resistance
ON Uses 100-ohm resistance
Not uses 100-ohm
OFF
resistance
3-42
Chapter 3 Multifunctional Interface Modules
Default
setting
ON 0
ON 1
ON 2
ON 3
Port