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.
J1632 Base Unit
J1 Connector Block
Station 17 Audible Connection for
(J0408 and J0816 Systems)
1
2
3
4
5
6
7
8
10
11
12
13
14
15
16
17
18
1
20
21
22
23
24
25
26
27
28
2
30
31
32
33
34
35
36
37
38
3
40
41
42
43
44
45
46
47
48
4
50
CLIP TERMIINALS
50
26
1
25
Audio Input
Enable Input
Connect Audio
Input To Common
Equipment
Paging Port
DSU224
PA System
J0408 Base Unit
Paging Port
J0816 Base Unit
Paging Port
Paging Port
DSU224
1 2 3 4 5 6
Pin 2
Pin 5
Station 17 Audible Pair
Connecting A Typical External Paging Interface
IMI66–132
DSU II Digital Telephone System
2 – 32 Installing The DSU II Digital Telephone System
Summary of Contents for DSU II
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