External Paging System (Customer Supplied) - Nortel ICS Install Manual

External paging system
You can connect an external paging system to provide paging
over external loudspeakers. The paging output from the
Norstar ICS is 100 mV rms across an input impedance of
600 Ω.
1. Follow the installation instructions provided by the
manufacturer.
2. Connect the paging system audio input to the 50-pin
distribution block as shown in the wiring charts.
3. Connect the paging system relay to the 50-pin distribution
block as shown in the wiring charts.
External paging contacts
idle
Yellow-Blue
(make)
Blue-Yellow
(common)
Tips -
paging equipment unless an external line port is used.
The Norstar system provides paging over the Norstar
telephone speakers, even when no external paging equipment
is connected.
N0130943 02
(customer supplied)
Yellow-Blue
(make)
Blue-Yellow
(common)
Norstar external paging does not support talk-back
Installing optional equipment / 299
active
Modular ICS 7.1 Installer Guide