Power-Fail Telephone - Nortel Norstar System Administration Manual

206 Troubleshooting

Power-fail telephone

Compact Plus System Administration Guide
Each analogue line card, installed in either the Compact Plus
Central Control Unit (CCU) or a Line Module, provides one
power-fail telephone connection at the Box Connection.
power-fail lines not supported
The following line cards do not support power-fail telephone lines:
NTBB1202: LM with auto-ranging power supply
These versions of LMs do not support emergency telephones.
NTBB20AD-93 UK Class B LM
NTBB20AE-93 Australia LM
NTBB20FD-93 Eng/Fr LM
NTBB20FF-93 Cala LM
NTBB20FG-93 International LM
The power-fail telephone is an analogue telephone (not a Norstar
telephone) that functions independently of the Compact Plus
system. You can use the power-fail telephone only when your
Norstar system is disconnected or without power. The power-fail
telephone is usually located near the Compact Plus CCU. If there
is no power-fail telephone next to the CCU, plug a standard
analogue telephone into the power-fail telephone socket located
near the CCU.
The power-fail telephone facility is not supported on a BRI loop.
Norstar customers with digital exchange lines who require
power-fail telephones, have the following options:
• Add analogue exchange lines to the system.
• Install an uninterruptable power supply (UPS) stand-by power
unit for the Compact Plus.
ATTENTION!
P0607114 Issue 01