Operation Manual

Appendix B: Illustrations
“Power” LED: Lit when power supply is connected. “Sync” LED: Lit when the AVM ISDN-Controller T1 is connected to the ISDN
network.
“D Channel” LED: Lit when the AVM ISDN-Controller T1 has established a D-channel
connection.
“System” LED: Lit when the AVM ISDN-Controller T1 is connected to the PC and the
driver software is loaded.
LEDs 1-30: Indicate the active B-channel connections. Fig. 2: Front panel of the AVM ISDN-Controller T1
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
16 17 18 19 20 21 22 23 24 25 26 27 28 29 30
T1
Primary Rate Interface
High-Performance ISDN by ...
Power Sync. D Channel
System