1 2 3 4 5 6 7 8 9 10
SPEAKERS
600 OHM
AUDIO OUT
COMMON
NIGHT BELL
PAGE TRIGGER
TALK BATTERY
PAGE W/ COMMON AUDIBLE
RING TRIP PAGE W/ NIGHT BELL
+
-
VIKING©
MODEL CPA-7B
GENERAL PURPOSE TELECOM
PAGING SYSTEM
VIKING
ELECTRONICS
HUDSON, WI 54016
PAGING
VOLUME RING/ALERT TONE
VOLUME
PAGING
INPUT MUSIC
INPUT TIME
OUT
MODE SWITCH
TRUNK/PAGING PORT
RING TRIP
POWER 13.8V AC
MIN MAX MIN MAX
ZF301200 Rev A
Due to the dynamic nature of the product design, the information contained in this document is subject to change without notice. Viking
Electronics, its affiliates and/or subsidiaries assume no responsibility for errors and/or omissions contained in this information. Revisions of
this document or new editions of it may be issued to incorporate such changes.
Product Support Line...(715) 386-8666 Fax Back Line...(715) 386-4345
Fax Back Doc # 455 Printed in the U.S.A.

E. Paging from a Phone System’s 600 Ohm Paging Port

1. If the phone system does NOT provide a dry contact closure on “Page”, connect the paging port to the 3.5mm
(1/8”) music input jack.
2. If loud common audible is required, connect the night transfer switch (optional), the phone system’s common
audible dry contacts and jumper terminals 6 to 7 as shown below.

Note: The CPA-7B can NOT provide background music or alert tones in this application.

1 2 3 4 5 6 7 8 9 10SPEAKERS600 OHMAUDIO OUTCOMMONNIGHT BELLPAGE TRIGGERTALK BATTERYPAGE W/ COMMON AUDIBLERING TRIP PAGE W/ NIGHT BELL+-
VIKING©
MODEL CPA-7B
GENERAL PURPOSE TELECOMPAGING SYSTEMVIKINGELECTRONICSHUDSON, WI 54016PAGINGVOLUME RING/ALERT TONEVOLUME
PAGING
INPUT MUSICINPUT TIMEOUTMODE SWITCHTRUNK/PAGING PORTRING TRIP
MIN MAX MIN MAX
POWER 13.8V AC
Up to (8) 8 ohm
speakers may
be connected
in parallel.
Night Transfer Switch
(not included)
Phone System
(PABX/KSU) Paging
Port

F. Cascading Multiple CPA-7B’s to Drive Additional Speakers

An infinite number of CPA-7B’s may be daisy-chained together to a master CPA-7B to drive additional speakers as
required. Only the master CPA-7B should be connected to the paging source, background music, phone system’s
dry contact closures, etc. The master CPA-7B controls the paging and ring/alert tone volume for all units. Set
paging control volume on all slave units to the maximum position. Connect as shown below.
C.O. line, Centrexline, PhoneSystems AnalogStation, Trunk orPaging Port
Background
Music Source
1 2 3 4 5 6 7 8 9 10
SPEAKERS
600 OHM
AUDIO OUT
COMMON
NIGHT BELL
PAGE TRIGGER
TALK BATTERY
PAGE W/ COMMON AUDIBLE
RING TRIP PAGE W/ NIGHT BELL
+
-
VIKING©
MODEL CPA-7B
GENERAL PURPOSE TELECOM
PAGING SYSTEM
VIKING
ELECTRONICS
HUDSON, WI 54016
PAGING
VOLUME RING/ALERT TONE
VOLUME
PAGING
INPUT MUSIC
INPUT TIME
OUT
MODE SWITCH
TRUNK/PAGING PORT
RING TRIP
POWER 13.8V AC
MIN MAX MIN MAX
1 2 3 4 5 6 7 8 9 10
SPEAKERS
600 OHM
AUDIO OUT
COMMON
NIGHT BELL
PAGE TRIGGER
TALK BATTERY
PAGE W/ COMMON AUDIBLE
RING TRIP PAGE W/ NIGHT BELL
+
-
VIKING©
MODEL CPA-7B
GENERAL PURPOSE TELECOM
PAGING SYSTEM
VIKING
ELECTRONICS
HUDSON, WI 54016
PAGING
VOLUME RING/ALERT TONE
VOLUME
PAGING
INPUT MUSIC
INPUT TIME
OUT
MODE SWITCH
TRUNK/PAGING PORT
RING TRIP
POWER 13.8V AC
MIN MAX MIN MAX
Up to (8) 8 ohm speakers
may be connected in parallel Up to (8) 8 ohm speakers
may be connected in parallel Up to (8) 8 ohm speakers
may be connected in parallel
6 ft audio patch cord
(included) 6 ft audio patch cord
(included)
Caution: Do NOT connect speakers with a combined parallel impedance of less than 1 ohm. To power more
speakers, see Installation/Applications section F.
Master CPA-7B
6 ft audio
patch cord (included)
RING TRIPTIME OUTAdjustmentPOT25AE 30AE 25AE 30AEN.O.Note: One end of the Audio Cord must be cut andwired directly to pins 3 and 4 to use multiple CPA-7B’s.Adjustaccording to yourapplication Additional
Horns or
Speakers
Additional
Horns or
Speakers
Additional
Horns or
Speakers
To
Additional
CPA-7B’s
Phone System
Common Audible
Dry Contact
Closure
(see Note above)
Note: The “Common Audible” contact
closure (below) will activate during
incoming ring on the phone system’s
line inputs (programmable on many
systems). Night bell (electronic warble
tone) will then be broadcast in
cadence with the incoming ring.

Note: For a RCA to stereo plug adapter,

order Radio Shack part #274-387.

Note: One end of the Audio Cord must be cut andwired directly to pins 3 and 4 to use multiple CPA-7B’s.
Connect according
to your application Not Used Not Used
Note: If a lower volumesetting is desired on oneslave unit, it must beconnected as the last unitin the chain.