Installation/Applications
ZF280065 Rev B
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Printed in the U.S.A.
A. Centrex or Ringing Analog PABX/KSU Station
1. Set the trunk station switch to the S position.
2. Adjust the TIME OUT control as required
(8 - 25 seconds).
3. With the night transfer switch off (open), the
CPA-7A will answer and page, then disconnect
on CPC or time out.
4. With the night transfer switch on (closed), the
CPA-7A will broadcast an electronics warble
tone with each ring.
B. Unused Phone System Trunk Input
1. Set the trunk station switch to the T position.
2. Adjust the TIME OUT control to the maximum.
3. If both paging and loud common audible are
required, wire the night transfer switch, the
common audible dry contacts and jumper
terminal 3 to 4 as shown to the right.
Night Transfer Switch
(not included)
1 2 3 4 5 6 7
S
T
Background
music source
Up to (8)
8 Ohm
speakers
Common
Speaker
Night bell
Contact Closure
Talk Battery
Music Input
Centrex line, C.O.
line or analog
PABX/KSU station
Provides talk battery
Night Transfer Switch (not included)
Key system
common audible
dry contact
closure
1 2 3 4 5 6 7
S
T
Background
music source
Up to (8)
8 Ohm
speakers
Common
Speaker
Night bell
Contact Closure
Talk Battery
Music Input
Unused
PABX/KSU
Trunk Port
1N 4004 Diode (included)
D. 600 ohm Paging Port
(with page dry contact closure provided)
1. Set the trunk station switch to the T position.
2. Adjust the TIME OUT control to the maximum.
3. Do NOT strap terminal 2 to terminal 5.
4. Connect the page dry contacts to terminals 2
and 4. Closure will activate the alert tone for
paging and mute the background music.
5. If both paging and loud common audible are
required, wire the night transfer switch, the
common audible dry contacts and the included
1N 4004 diode as shown to the right.
Night Transfer Switch (not included)
Key system
dry contact
closures
Page
Common
Audible
Night bell
Contact Closure
Talk Battery
Music Input
PABX/KSU
Page Port
1 2 3 4 5 6 7
S
T
Background
music source
Up to (8)
8 Ohm
speakers
Common
Speaker
C. 600 ohm Paging Port
1. If the phone system does NOT provide a dry contact
closure on “Page”, connect the paging port to the
music input, terminals 6 and 7.
Note: The CPA-7A can NOT provide background
music or alert tones in this application.
2. If loud common audible is required, wire the night
transfer switch, the common audible dry contacts and
jumper terminal 3 to 4 as shown to the right.
Night Transfer Switch (not included)
Key system
common audible
dry contact
closure
1 2 3 4 5 6 7
S
T
Up to (8)
8 Ohm
speakers
Common
Speaker
Night bell
Contact Closure
Talk Battery
Music Input
PABX/KSU
Page Port