3Com 3C13755-US - Router 5642 Installation Manual page 49

Front Panel and LEDs
Cables
Table 39 describes the configuration of the 4-Port ISDN S/T MIM DIP switch.
Table 39 Configuration of the 4-port ISDN S/T MIM DIP Switch
DIP switch Description
1.2 BIT On
Off
3.4 BIT On
Off
5.6 BIT On
Off
7.8 BIT On
Off
Figure 51 illustrates the front panel of the 4-Port ISDN S/T MIM.
Figure 51 Front panel of the 4-Port ISDN S/T MIM
Table 40 lists status descriptions of the 4-Port ISDN S/T MIM LEDs.
Table 40 4-Port ISDN S/T MIM LEDs
LED
Yellow lamp on the left
Green lamp on the right
0 - 3
The interface cable for the 4-Port ISDN S/T MIM is a standard ISDN S/T interface
cable. Pin 3 and pin 6 are TX ends, and pin 4 and pin 5 are RX ends. Both ends
have RJ-45 connectors.
4-port ISDN S/T MIM
Corresponding
Default setting interface
Use 100-ohm On
matched
resistance,
Not use 100-ohm
matched
resistance
Use 100-ohm On
matched
resistance
Not use 100-ohm
matched
resistance
Use 100-ohm On
matched
resistance
Not use 100-ohm
matched
resistance
Use 100-ohm On
matched
resistance
Not use 100-ohm
matched
resistance
Meaning
Off means channel B1 is idle. Green means
channel B1 is occupied and data
communication is going on.
Off means channel B2 is idle. Green means
channel B2 is occupied and data
communication is going on.
Corresponding port number.
47
0
1
2
3