Viking PA-15 Product Manual

PRODUCT MANUAL

Designed, Manufactured and Supported in the USA

COMMUNICATION & SECURITY SOLUTIONS

Add Paging, Loud Ringing and Background Music

to Centrex, PABX, IP, or Key Systems

Features

The PA-15 interfaces with virtually any telephone system
to provide 15 watts of paging power - enough to drive
fifteen 8-ohm paging horns or speakers. This small and
light weight chassis design is possible by utilizing new
amplifier technology that is 300% less inefficient than old
designs competitors use. High efficiency means much
less heat dissipation, smaller size, higher reliability, and
lower cost.

The PA -15 provides 36V talk battery for interfacing with
an FXO or unused analog line input/trunk port. With the
flip of a switch, the unit can connect to a FXS or
PABX/Centrex station ring trip port or connect to a 600
ohm paging port. When interfacing with systems that do
not provide a paging contact closure, the built-in voice
activation (VOX) is in control.

After paging, the PA-15 auto disconnects on CPC, busy
signal, silence, or default disconnect timer (helps prevent
accidental paging system lock-up if phone is hung-up
incorrectly). The unit will generate adjustable loud ringing
from an independent ringing analog FXS/PABX/Centrex

station or from a dry contact closure. The PA-15 can
provide background music (muted during page) if
connected to an external music source.

Replaces the CPA-7B, provides twice the power and
many new features (shown in bold below).

• 15 Watts of paging power

• Drive up to (15) 8-ohm speakers

• 600 Ohm output to drive additional amplifiers

• Select: FXO (loop start), FXS (ring trip) or paging port
(VOX relay) interface mode

• Independent volume controls for Paging, Ringing
Tones and Background Music

• 36V DC talk battery for interfacing with FXO or
unused phone system line input/trunk port

• Compatible with 24V to 48V FXS (ring trip) analog
station operation

• 1K Hz pre-announce page tone (on/off)

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

• Choose one of four ringing sounds:

- Electronic warble (traditional loud ringer)

- Double gong (two identical “gong” tones)

- Quadruple chime (four descending chime tones)

- Door chime (ding-dong)

• Night transfer switch input

• CPC detection for immediate disconnect

• Busy signal detect disconnect

• Adjustable silence time out disconnect

• Programmable VOX trigger sensitivity and time out

• 16 to 72 second (or off, default) disconnect timer

• Page from virtually any POTS, Centrex, PABX, digital
or IP phone system

• Amplified loud paging

• Loud ringing

• Night bell

• Background music in all paging modes

• Loud ringing + door chime over paging

Power: 120V AC/13.8V AC 1.25 A, UL listed adapter

provided
Amplifier: 15 Watts - to power up to (15) 8-Ohm speakers
(cascadable to drive additional speakers)

Dimensions: 5.25” x 3.5” x 1.75” (133mm x 89mm x 44mm)
Shipping Weight: 3.0 lbs (1.36 kg)
Environmental: 32°F to 90°F (0°C to 32°C) with 5% to 95%

non-condensing humidity
Speakers: Viking 25AE, 30AE, 35AE, 40AE (DOD# 498) or
300AE (DOD 497) speakers, not included
Sound Pressure Level: 115 dB SPL @ 1m with (1) 25AE
paging horn (not included)

Talk Battery Output: 36V DC (loop current 36mA nominal)
Maximum Speaker Cable Length: 300 ft (91m) 18 AWG
Connections: 14 cage clamp screw terminals

PA-15

15 Watt Paging Amplifier

with Background Music

and Loud Ringing

April 26, 2018

Applications

Specifications

www.VikingElectronics.com

Information: 715-386-8861

VIKING

Features Overview

Installation and Programming

ACTIVE

TRIGGER

+SPKR-

600 OHM

OUTPUT

PAGE IN

PAGE

CONTACT

RINGING

LINE

MUSIC
INPUT

NT COM FXO FXS

PWR

Power Input

(13.8VAC adapter included)

Speaker Output

Up to (15) 8 Ohm speakers

600 Ohm Output

Connect to additional amplifiers

to drive more speakers

Paging Input

Paging Contact

Background Music In - Connect to any

music source to provide background music

Contact Closure - To trigger loud ringing
Night Transfer - To enable/disable loud ringing

Ringing Line In - A ringing line will

trigger loud ringing.

Red Power LED

Trigger LED: Loud

Ringing Activity

Paging Volume Control

Ringing/Alert Tone
Volume Control

Background Music
Volume Control

FXO/FXS Switch

(Factory set to FXS)

Blue Active LED:

Paging Activated

DIP Switches

(see section G)

15 WATT TELECOM
PAGING AMPLIFIER

VIKING

©

MODEL PA-15

PWR 13.8V AC

1234 56

SPEAKER

OUTPUT

600 OHM

OUTPUT

789101112

PAGE IN

PAGE

CONTACT

13 14 FXO FXS

LINE IN

MUSIC

INPUT

NIGHT

XFER

VIKING

ELECTRONICS

HUDSON, WI 54016

LOUD
RINGING

IMPORTANT: Electronic devices are susceptible to lightning and power station electrical surges from both the AC
outlet and the telephone line. It is recommended that a surge protector be installed to protect against such surges.

2

A. Amplified Paging

1. Paging Port

Note: For information on speakers to use, ambient noise levels, and speaker wiring, see DOD# 498 and 895.

Important: Page Alert Tone is not given when

page contacts are not provided.

* Note: If paging contacts are not available, VOX
is in control. See Programming section E for
VOX adjustments.

Up to (15)

8 Ohm Speakers

(not included)

Page Contact

(if available)

Paging Port

ACTIVE

TRIGGER

+SPKR-

600 OHM

OUTPUT

PAGE IN

PAGE

CONTACT

RINGING

LINE

MUSIC
INPUT

NT COM FXO FXS

PWR

Paging Volume

Control

15 WATT TELECOM
PAGING AMPLIFIER

VIKING

©

MODEL PA-15

PWR 13.8V AC

1234 56

SPEAKER

OUTPUT

600 OHM

OUTPUT

789101112

PAGE IN

PAGE

CONTACT

13 14 FXO FXS

LINE IN

MUSIC

INPUT

NIGHT

XFER

VIKING

ELECTRONICS

HUDSON, WI 54016

LOUD
RINGING

Step 1

Move the FXS/FXO switch to the
FXS position.

Step 2 Move DIP switch 6 to ON.

Step 3

Connect terminals 5 and 6 to the
paging port.

Step 4

Connect terminals 7 and 8 to the
paging contacts (if available).*

Step 5

Adjust the page volume control to
the desired volume.

3

2. Trunk/Line Port

Step 1

Move the FXS/FXO switch to the
FXO position.

Step 2 Move DIP switch 6 to OFF.

Step 3

Connect terminals 5 and 6 to an
unused telephone line input (trunk
port) or FXO.

Step 4

Adjust the page volume control to the
desired volume.

Note: For information on speakers to use, ambient
noise levels, and speaker wiring, see DOD 498 and

895.

Up to (15)

8 Ohm Speakers

(not included)

Unused Telephone

Line Input (Trunk Port)

or FXO

- OR -

Analog

Phone

ACTIVE

TRIGGER

+SPKR-

600 OHM

OUTPUT

PAGE IN

PAGE

CONTACT

RINGING

LINE

MUSIC
INPUT

NT COM FXO FXS

PWR

Paging Volume

Control

15 WATT TELECOM
PAGING AMPLIFIER

VIKING

©

MODEL PA-15

PWR 13.8V AC

1234 56

SPEAKER

OUTPUT

600 OHM

OUTPUT

789101112

PAGE IN

PAGE

CONTACT

13 14 FXO FXS

LINE IN

MUSIC

INPUT

NIGHT

XFER

VIKING

ELECTRONICS

HUDSON, WI 54016

LOUD
RINGING

3. Ring Trip

Up to (15)

8 Ohm Speakers

(not included)

Analog PABX Extension,
Centrex Line or FXS

ACTIVE

TRIGGER

+SPKR-

600 OHM

OUTPUT

PAGE IN

PAGE

CONTACT

RINGING

LINE

MUSIC
INPUT

NT COM FXO FXS

PWR

Paging Volume

Control

15 WATT TELECOM

PAGING AMPLIFIER

VIKING

©

MODEL PA-15

PWR 13.8V AC

1234 56

SPEAKER

OUTPUT

600 OHM

OUTPUT

789101112

PAGE IN

PAGE

CONTACT

13 14 FXO FXS

LINE IN

MUSIC

INPUT

NIGHT

XFER

VIKING

ELECTRONICS

HUDSON, WI 54016

LOUD
RINGING

Note: For information on speakers to use, ambient
noise levels, and speaker wiring, see DOD 498 and

895.

Step 1

Move the FXS/FXO switch to the
FXS position.

Step 2 Move DIP switch 6 to OFF.

Step 3

Connect terminals 5 and 6 to an
analog PABX extension, Centrex
Line or FXS.

Step 4

Adjust the page volume control to
the desired volume.

B. Loud Ringing/Night Bell

1. Ringing Analog Line

Step 1

Connect terminals 9 and 10 to a
ringing line, FXS or analog PABX
station.

Step 2

The ringing volume control may be
adjusted to required level.

Step 3

A night transfer switch may be
added to terminals 11 and 12 to
enable and disable loud ringing.

Up to (15)

8 Ohm Speakers

(not included)

Ringing Line,

FXS or

PABX Station

Optional Night Transfer
Switch - Disables loud

ringing when closed (not
included) Use Viking model
NS-1 (DOD# 540)

ACTIVE

TRIGGER

+SPKR-

600 OHM

OUTPUT

PAGE IN

PAGE

CONTACT

RINGING

LINE

MUSIC
INPUT

NT COM FXO FXS

PWR

Ringing Volume

Control

15 WATT TELECOM

PAGING AMPLIFIER

VIKING

©

MODEL PA-15

PWR 13.8V AC

1234 56

SPEAKER

OUTPUT

600 OHM

OUTPUT

789101112

PAGE IN

PAGE

CONTACT

13 14 FXO FXS

LINE IN

MUSIC

INPUT

NIGHT

XFER

VIKING

ELECTRONICS

HUDSON, WI 54016

LOUD
RINGING

Note: For information on speakers to use,
ambient noise levels, and speaker wiring,
see DOD 498 and 895.