Nortel Modular ICS 7.1, Инструкция по установке

Страница: 291 / 700

Emergency telephone /
291
N0130943 02 Modular ICS 7.1 Installer Guide
Emergency telephone
You can connect an emergency telephone to an ICS or Trunk
Module (TM) with a Loop Start Trunk Cartridge to provide
emergency service when there is no power to the ICS. The ICS
has emergency telephone connections for lines 002 and 026
(profile 1, 3 and 4) or 002 to 030 (profile 2). Each Trunk
Module has one emergency telephone connection.
1. Wire a modular jack or equivalent to each set of
emergency telephone pins on the 50-pin distribution block
for the ICS or Trunk Module external lines.
Refer to
Wiring charts on page 260 for the pin numbers.
2. Connect a single-line telephone (500/2500) to the modular
jack.
3. Prepare to test the emergency telephone by removing the
Trunk Cartridge from the slot (slot 3 or 4 on the ICS, and
slot 1 on the TM).
4. Connect the power, then connect the central office lines to
the ICS.
5. Pick up the emergency telephone receiver and listen for
dial tone.
These versions of the Global Trunk module
do not support emergency telephones:
NTBB1202
TM With Auto Ranging power supply.
NTBB20AD-93 UK Class B TM
NTBB20AE-93 Australia TM
NTBB20FD-93 Eng/Fr TM
NTBB20FF-93 Cala TM
NTBB20FG-93 International TM