Viking CPA-7B User Manual

Telecommunication Peripheral Products

Technical Practice

CPA-7B

General Purpose

Telecom Paging System

January 7, 1999

Add Paging, Loud Ringing and Background

Music to Centrex, PABX’s or Key Systems

The CPA-7B is a cost effective, multi- purpose, telecom
paging system.

The CPA-7B features a low noise, high fidelity amplifier,
providing 6 watts of power for a variety of telecom paging
applications. It can also provide background music and
night bell/common audible. In addition, multiple units
may be daisy-chained for larger paging applications.

Compatible with ringing C.O. lines, Centrex lines and
analog PABX/KSU station ports as well as unused trunk inputs, the CPA-7B will also
interface directly with standard paging ports. For loud ringing, the CPA-7B generates
an adjustable loud warble from a dry contact closure, a ringing C.O. or a ringing analog
PABX/KSU station.

The CPA-7B is easy to install and can eliminate the installation of multiple bells, relays
and paging cards.

adjustable

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http://www.VikingElectronics.com

Features Applications

• 6 watts of paging power (powers up to (8) 8
ohm horns/speakers)

• Increased audio fidelity with low noise

amplifier

• Interfaces with ringing C.O. lines, Centrex lines,
paging ports, unused phone system trunk
inputs, or ringing analog station ports

• 600 ohm audio output to connect multiple

CPA-7B’s for larger paging applications

• (1) 8 ohm 25AE paging horn included

• Day/night switchable for paging/loud ring

• Ringing/alert tone volume adjustment

• Paging volume adjustment

• Selectable ring trip paging and night bell

• Background music is muted during page

• 10 pin cage clamp terminal strip for easier

wiring

• Provides “Night Bell” warble tone via contact
closure or ringing analog circuit

• Provides page “Alert” tone before paging

• Adjustable ring trip paging time out for auto
disconnect

• Audio patch cord provided

• Paging and loud ringing for Centrex systems

• Paging and loud ringing for phone systems with
paging ports, unused analog station ports or
unused trunk inputs

Sales...(715) 386 - 8861

Made in the U.S.A.

Specifications

Power: 120V AC/13.8V AC 1.25 A, UL listed adapter provided
Amplifier: 6 watts - to power up to (8) 8 ohm speakers

(cascadable to drive additional speakers)

Dimensions: 133 mm x 89 mm x 44 mm (5.25” x 3.5” x 1.75”)
Shipping Weight: 1.36 kg (3 lbs)
Environmental: 0°C to 32°C (32°F to 90°F) with 5% to 95% non-

condensing humidity

Speakers: (1) 25AE paging horn provided
Sound Pressure Level: 110dB, 1KHz @ 1m with (1) 25AE

Paging Horn (included), each additional horn will drop the output
level of all horns by 1dB

Maximum Speaker Cable Length: 91 m (300 ft) 18 AWG
Connections: (1) RJ11 jack, (1) 3.5mm (1/8”) audio jack, (1)

2.1mm barrel jack
Talk Battery Output: 19V DC (loop current 36mA nominal)

Installation/Applications

A. Ring Trip Paging with or without Night Bell

1. Set the MODE SWITCH to the RING TRIP position.

2. Adjust the RING TRIP TIME OUT POT as required (adjustable from approximately 10 - 25 seconds).

3. Plug a C.O. line, Centrex line or analog PABX/KSU station into the PAGING INPUT PORT.

4. Make a sample page adjusting paging and alert tone volume.

5. With the night transfer switch off (open), the CPA-7B will answer and page, then disconnect on CPC or time out.

6. With the night transfer switch on (closed), the CPA-7B will broadcast a night bell ring (electronic warble tone)

during each incoming ring.

Caution: Do NOT connect speakers with a combined parallel impedance of less than 1 ohm. To power more
speakers, see Installation/Applications section F.

C.O. line, Centrex

line or analog

PABX/KSU station

Background

Music Source

VIKING©

PAGING
VOLUME

MIN MAX MIN MAX

GENERAL PURPOSE TELECOM

POWER 13.8V AC

MODE SWITCH

TRUNK/PAGING PORT

RING TRIP

PAGING

MUSIC

TIME

INPUT

INPUT

OUT

RING TRIP

TIME OUT

Adjustment

6 ft audio

patch cord (included)

POT

MODEL CPA-7B

RING/ALERT TONE

VOLUME

VIKING

ELECTRONICS

HUDSON, WI 54016

PAGING SYSTEM

SPEAKERS

COMMON

NIGHT BELL

+

-

600 OHM

AUDIO OUT

1 2 3 4 5 6 7 8 9 10

25AE

PAGE W/ COMMON AUDIBLE

RING TRIP PAGE W/ NIGHT BELL

PAGE TRIGGER

TALK BATTERY

30AE

Optional Night

Transfer Switch

(not included)

25AE

30AE

Up to (8) 8 ohm
speakers may
be connected
in parallel

B. Ring Trip Paging with Night Bell/Common Audible from Contact Closure

1. Set the MODE switch to the RING TRIP position.

2. Adjust the RING TRIP TIME OUT POT as required (adjustable from approximately 10 to 25 seconds).

3. Connect the phone system’s dry contacts to pins 5 and 7 and jumper terminal 6 to 10 as shown below.

Note: Common audible (night bell) takes precedence over ring trip paging.
Caution: Do NOT connect speakers with a combined parallel impedance of less than 1 ohm. To power more

speakers, see Installation/Applications section F.

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.

Night Transfer Switch

(not included)

25AE

30AE

Phone System
Common Audible

N.O.

Dry Contact
Closure

(see Note above)

Up to (8) 8 ohm
speakers may
be connected
in parallel.

C.O. line, Centrex

line or analog

PABX/KSU station

Background

Music Source

VIKING©

PAGING
VOLUME

MIN MAX MIN MAX

GENERAL PURPOSE TELECOM

POWER 13.8V AC

MODE SWITCH

TRUNK/PAGING PORT

RING TRIP

PAGING

MUSIC

TIME

INPUT

INPUT

OUT

RING TRIP

TIME OUT

Adjustment

POT

6 ft audio

patch cord (included)

MODEL CPA-7B

RING/ALERT TONE

VOLUME

VIKING

ELECTRONICS

HUDSON, WI 54016

PAGING SYSTEM

SPEAKERS

COMMON

-

1 2 3 4 5 6 7 8 9 10

NIGHT BELL

+

600 OHM

AUDIO OUT

25AE

PAGE W/ COMMON AUDIBLE

RING TRIP PAGE W/ NIGHT BELL

PAGE TRIGGER

TALK BATTERY

30AE

C. Paging from an Unused Phone System Trunk Input

1. Set the MODE SWITCH to the TRUNK/PAGING PORT position.

2. Adjust the RING TRIP TIME OUT POT to its maximum (fully clockwise) position.

3. Connect terminal 8 to 5 to provide talk battery on the PAGING INPUT PORT.

4. Connect the unused trunk port to the PAGING INPUT PORT.

Note: If both paging and loud common audible are required, connect the night transfer switch (optional), the phone
system common audible dry contacts and jumper terminal 6 to 7 as shown below.

Caution: Do NOT connect speakers with a combined parallel impedance of less than 1 ohm. To power more
speakers, see Installation/Applications section F.

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.

Night Transfer Switch

(not included)

25AE

30AE

Phone System
Common Audible
Dry Contact

N.O.

Closure

(see Note above)

Up to (8) 8 ohm
speakers may
be connected
in parallel.

Unused Phone

System (PABX/KSU)

Trunk Input

Background

Music Source

VIKING©

PAGING

VOLUME

MIN MAX MIN MAX

GENERAL PURPOSE TELECOM

POWER 13.8V AC

MODE SWITCH

TRUNK/PAGING PORT

RING TRIP

PAGING

MUSIC

TIME

INPUT

INPUT

OUT

RING TRIP

TIME OUT

Adjustment

6 ft audio

patch cord (included)

MODEL CPA-7B

VIKING

ELECTRONICS

HUDSON, WI 54016

PAGING SYSTEM

SPEAKERS

600 OHM

+

-

1 2 3 4 5 6 7 8 9 10

POT

RING/ALERT TONE

VOLUME

COMMON

NIGHT BELL

PAGE TRIGGER

AUDIO OUT

25AE

PAGE W/ COMMON AUDIBLE

RING TRIP PAGE W/ NIGHT BELL

TALK BATTERY

30AE

D. Paging from a Phone System’s 600 Ohm Paging Port (with page dry contact closure provided)

1. Set the MODE SWITCH to the TRUNK/PAGING PORT position.

2. Adjust the RING TRIP TIME OUT POT to its maximum (fully clockwise) position.

3. Connect the phone system’s paging port to the PAGING INPUT PORT.

4. Connect the phone system’s paging dry contacts to terminals 5 and 7. The contact closure will activate the alert

tone for paging and mute the background music.
Note: If both paging and loud common audible are required, wire the night transfer switch (optional) to the phone

system’s common audible dry contacts and jumper terminals 9 to 6 as shown below.

Caution: Do NOT connect speakers with a combined parallel impedance of less than 1 ohm. To power more
speakers, see Installation/Applications section F.

Note: The “Page” contact closure
(below) will initiate paging from the
phone system’s paging port. 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.

Page

N.O.

(see

Note

above)

Phone System
Dry Contact
Closures.

Common Audible

N.O.

(see

Note

above)

(not included)

Background

Music Source

6 ft audio

patch cord (included)

Up to (8) 8 ohm
speakers may
be connected
in parallel.

Phone System

(PABX/KSU)

Paging Port

30AE

25AE

VIKING©

POWER 13.8V AC

PAGING

INPUT

30AE

PAGING

MODEL CPA-7B

VOLUME

MIN MAX MIN MAX

GENERAL PURPOSE TELECOM

MODE SWITCH

TRUNK/PAGING PORT

RING TRIP

MUSIC

TIME

INPUT

OUT

RING TRIP

TIME OUT

Adjustment

25AE

VIKING

ELECTRONICS

HUDSON, WI 54016

PAGING SYSTEM

SPEAKERS

-

+

1 2 3 4 5 6 7 8 9 10

POT

RING/ALERT TONE

VOLUME

COMMON

NIGHT BELL

600 OHM

AUDIO OUT

PAGE W/ COMMON AUDIBLE

RING TRIP PAGE W/ NIGHT BELL

PAGE TRIGGER

TALK BATTERY

Night Transfer Switch

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.

Caution: Do NOT connect speakers with a combined parallel impedance of less than 1 ohm. To power more
speakers, see Installation/Applications section F.

Phone System

(PABX/KSU) Paging

Port

VIKING©

PAGING
VOLUME

MIN MAX MIN MAX

GENERAL PURPOSE TELECOM

POWER 13.8V AC

MODE SWITCH

TRUNK/PAGING PORT

RING TRIP

PAGING

MUSIC

TIME

INPUT

INPUT

OUT

MODEL CPA-7B

RING/ALERT TONE

VOLUME

VIKING

ELECTRONICS

HUDSON, WI 54016

PAGING SYSTEM

SPEAKERS

COMMON

NIGHT BELL

+

600 OHM

AUDIO OUT

-

1 2 3 4 5 6 7 8 9 10

PAGE W/ COMMON AUDIBLE

RING TRIP PAGE W/ NIGHT BELL

PAGE TRIGGER

TALK BATTERY

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.

Night Transfer Switch

(not included)

RING TRIP

TIME OUT

Adjustment

6 ft audio

POT

patch cord (included)

Note: For a RCA to stereo plug adapter,

order Radio Shack part #274-387.

25AE

30AE

25AE

30AE

Phone System
Common Audible

N.O.

Dry Contact
Closure

(see Note above)

Up to (8) 8 ohm
speakers may
be connected
in parallel.

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.

Master CPA-7B

C.O. line, Centrex

line, Phone

Systems Analog

Station, Trunk or

Paging Port

VIKING©

PAGING
VOLUME

MIN MAX MIN MAX

GENERAL PURPOSE TELECOM

MODE SWITCH

TRUNK/PAGING PORT

RING TRIP

MUSIC

TIME

INPUT

OUT

PAGING SYSTEM

POWER 13.8V AC

PAGING

INPUT

MODEL CPA-7B

RING/ALERT TONE

VOLUME

VIKING

ELECTRONICS

HUDSON, WI 54016

SPEAKERS

PAGE TRIGGER

600 OHM

AUDIO OUT

COMMON

NIGHT BELL

TALK BATTERY

PAGE W/ COMMON AUDIBLE

-

+

1 2 3 4 5 6 7 8 9 10

RING TRIP PAGE W/ NIGHT BELL

VIKING©

PAGING

VOLUME

MIN MAX MIN MAX

GENERAL PURPOSE TELECOM

MODE SWITCH

TRUNK/PAGING PORT

RING TRIP

MUSIC

TIME

INPUT

OUT

PAGING SYSTEM

POWER 13.8V AC

PAGING

INPUT

MODEL CPA-7B

RING/ALERT TONE

VOLUME

VIKING

ELECTRONICS

HUDSON, WI 54016

SPEAKERS

PAGE TRIGGER

600 OHM

AUDIO OUT

COMMON

NIGHT BELL

TALK BATTERY

PAGE W/ COMMON AUDIBLE

-

+

1 2 3 4 5 6 7 8 9 10

RING TRIP PAGE W/ NIGHT BELL

VIKING©

PAGING
VOLUME

MIN MAX MIN MAX

GENERAL PURPOSE TELECOM

MODE SWITCH

TRUNK/PAGING PORT

RING TRIP

MUSIC

TIME

INPUT

OUT

PAGING SYSTEM

POWER 13.8V AC

PAGING

INPUT

MODEL CPA-7B

RING/ALERT TONE

VOLUME

VIKING

ELECTRONICS

HUDSON, WI 54016

SPEAKERS

-

600 OHM

AUDIO OUT

COMMON

NIGHT BELL

+

1 2 3 4 5 6 7 8 9 10

PAGE TRIGGER

TALK BATTERY

PAGE W/ COMMON AUDIBLE

RING TRIP PAGE W/ NIGHT BELL

Background

Music Source

Additional

Horns or

Speakers

Up to (8) 8 ohm speakers
may be connected in parallel

Adjust

according

to your

application

Connect according
to your application

6 ft audio patch cord

(included)

Note: One end of the Audio Cord must be cut and

wired directly to pins 3 and 4 to use multiple CPA-7B’s.

Additional

Horns or

Speakers

Up to (8) 8 ohm speakers
may be connected in parallel

Note: One end of the Audio Cord must be cut and

wired directly to pins 3 and 4 to use multiple CPA-7B’s.

Not Used Not Used

To

6 ft audio patch cord

(included)

Additional

Horns or

Speakers

Note: If a lower volume

setting is desired on one
slave unit, it must be
connected as the last unit
in the chain.

Additional

CPA-7B’s

Up to (8) 8 ohm speakers
may be connected in parallel

Product Support Line...[phone] Fax Back Line...[phone]

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.

Fax Back Doc # 455 Printed in the U.S.A.

ZF301200 Rev A