Operation Manual

23
3 Technical Data and Features
3.3 LEDs on the ISDN-Controller B1 USB
The operating status of the ISDN-Controller B1 USB is
indicated by five LEDs (light-emitting diodes). Their
significance is explained in the following table:
Table 1 Significance of LEDs
3.4 Connector and Cable Pin Assignments
The ISDN-Controller is connected to the ISDN line by an
RJ45 plug with the following pin assignments:
3.4.1 Pin assignments, S
0
Interface (RJ45 to IAE)
Table 2 Pin assignments, RJ45 to IAE
LED Color Significance
Power Green Ready
USB Green Connection to computer or
USB hub active
D Green Connection active on D
channel
B1 Green Connection active on 1
st
B
channel
B2 Green Connection active on 1
st
B
channel
RJ45 IAE plug Signal
1
2
33 Rx (a2)
4 4 Tx (a1)
5 5 Tx (b1)
6 6 Rx (b2)
7
8