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IMI 66-083
EXTERNAL PAGING
INTERFACE
A special transformer-isolated paging port is used to
couple the system to an external paging amplifier.
Relay closure dry-contact points are available at the
ringing port terminal and can be used for controlling
the external paging amplifier during a paging
operation. These contacts close and stay closed
during the time that a paging operation is active to
provide a constant enable signal path for the paging
amplifier.
NOTE:
This paging enable constant closure function
overrides the ring pattern closure provided
when ringing is sent to the paging port. See
the previous paragraph titled Common
Auciit&
. .
. .
AndRlV.
l
Connect the audio input of an external paging
amplifier to the paging port as shown below in
Figure 3-10.
l
If an enable signal is required by the paging
amplifier, connect the enable leads to the station 17
audible teminals as shown in
Figure 3-10.
PA SYSTEM
I I
50-+-
l
‘-
CUP
lERYlNAL6
TO RINGING PORT
STATION
17
AUOIBLE
BARRIER STR
IP
IIC-LINE.
32-STATION
BASE UNIT)
STATION CONNECTOR BLOCK
(4-LINE,
e-STATION
AND S-LINE,
IC-STATION
BASE UNITS)
Figure
340.
Typical External Paging Connection