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
VIKING©
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