2.10 Using The External Paging Interface
The system provides a special transformer-isolated paging port that you can use to couple the
system to a customer-supplied external paging amplifier. This external paging port does not
provide a talk-back path nor will it recognize DTMF dial tones.
You can use the relay closure dry-contact points that the system makes available at the ringing
port terminal 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.
•
Connect the audio input of a customer-supplied external paging amplifier to the paging port.
•
If the paging amplifier requires an enable signal, connect the enable leads to the station 17
audible terminals.
Figure 2–14: Connecting A Typical External Paging Interface
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CLIP TERMIINALS
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J1 Connector Block
(G0408 and G0816 Systems)
Audio Input
Enable Input
Connect Enable
Input To Station 17
Audible Terminals
If Enable Is Required.
Barrier Strip
(G1632 System)
CAJS042A
PA System
Typical Common
Equipment
Paging
Port
Digital Telephone System
IMI66–107
2 – 32 Installing The DSU
Содержание Air Impact DSU
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