Black Box BRI-HUB ISU2011-4-EURO - Manual (Page 15)

15
BRI-Hub
TECHNICAL: 0118 931 2233
Troubleshooting
Fault
Problem How to clear the problem
Pwr-LED is off BRI-Hub is powered off Plug in power adaptor
No mains power Check for main power
Faulty power adaptor Use other compatible power adaptor. Check
polarity!
For BRI-HUB-S only:
loss of power inside NT
or PABX Use original power adapter
BRI-Hub is faulty
Please return the device to your dealer.
Specific devices
on a port do not
operate via the
BRI Cable shorts Use another port for test.
Check for cabling faults.
Faulty terminal
equipment
Check with other equipment
Cable too long Connect TE directly to the BRI-Hub for test
Only devices at
port 1 may
communicate A BRI-HUB is used
which is in the power
down mode Power on the BRI-HUB
If you are still having problems with you BRI-Hub, please call Black Box technical Support.