Trouble Repair - BTR ISDN-TE-Hub home 1/4 Bedienungsanleitung

7. Trouble repair

7.1 Trouble repair
Trouble
the green LED
does not light
ISDN terminals
do not work
only terminals with ISDN connection works in
individual feeding
or allowed to
emergency feeding not plugged
do work
possible reason
supply of power pack is inter-
rupted or power pack not
plugged
cabling error
emergency mode, S
without supply, power pack
E17
trouble repair
ensure power supply
and/or plug power pack
check cabling, if necessary
check direct connection
without ISDN-TE-Hub
home 1/4, check
cable lengths
ensure feeding of ISDN-
bus connection (NTBA)
0
plug power pack