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External Paging
Telephones
and Peripheral Equipment
External Paging
Guidelines
.
.
.
CPC-S does not provide any page relay controls. Paging Audio output is
provided at the EPA connector for external pages. It is recommended
that
the EPA output be connected to a voice-activated
amplifier to eliminate
background
"white" noise.
CPC-M provides a paging audio output (EPA), page zone relay terminals
(AZ, 21-24) and external page relay terminals (B2, C2 and M2). Since the
relays are not provided with the CPC-S card, external Zane Paging is only
available with the CPC-M Circuit Card.
The maximum
current for each zone paging terminal on the CN4
Connector Panel (Terminals AZ, 21-24) is 50 mA; the resistance of the
relay used for each zone paging terminal must be 2600 to 2800 Ohms.
The paging amplifier, relays, and speakers are not provided with the DBS
824. They must be purchased separately.
The EPA connector
(CN5) is used to connect the paging amplifier. The
output impedance
of CN5 is 600 Ohms.
B2 (Break 2), C2 (Common 2) and M2 (Make 2) may be used to activate a
non-zoned external Paging Installation. Any page defined as external
activates these relay contacts.
Non-Zoned Page lnstailation (CPC-M Only)
1. Connect the amplifier speaker output in series with the "C2" and "M2"
,-
terminals on the CN4 Connector Panel as shown in Figure 5-14
.
2.
Connect the CN5 "EPA" connector to the amplifier
.
5-16
DBS 824-l O-300
Issued
3/l 195
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