pa-2a
• Two watts of paging power
• Fourth line input is optically coupled for use
with fax switches and analog PABX/KSU
stations
• Ring sensitivity adjustment
• Can provide background music from an
external source
• Paging from an unused trunk port or paging
port
• Loud ringing
• Provides loud electronic ring or night bell, from
1 - 6 lines for warehouses, yards, etc.
• Output for controlling a 12 volt relay from 1 - 6
ringing lines
The PA-2A provides loud ringing and paging to
electronic key systems, 1A2 Key systems,
PABX’s as well as No-KSU phones and multi-
line phones.
Add Paging and Multiple Line
Loud Ringing to Any Phone System
VIKING©
Technical Practice
Telecommunication Peripheral Products
PA-2A
Paging Amplifier-
Loud Ringer
June 26, 2000
Features Applications
Sales...(715) 386 - 8861
Made in the U.S.A.
Power: 120V AC/13.8V AC 1.25A, UL listed adapter provided
Dimensions: 133mm x 89mm x 44mm (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
Paging Output: 2 watts - powers up to (3) 8 ohm or (16) 45 ohm
speakers
Sound Pressure: 110 dB @ 1 meter
Speakers: (1) 25AE 8 ohm paging horn included, (3) maximum
Maximum Speaker Run: 91 m (300 ft) maximum 18 AWG
Talk Battery: 24V DC
Connections: (2) RJ25 jacks, (1) 5 position screw terminal block
Specifications
• Amplified loud paging
• Night bell
• Background music
• Loud ringing
http://www.VikingElectronics.com
E-mail...Sales@VikingElectronics.com
Paging is accomplished by connecting the PA-
2A to a paging port or unused C.O. line input of
nearly any phone system.
The PA-2A is easy to install and eliminates the installation of multiple bells, relays and
paging cards. The unit comes complete with a power supply, amplifier and (1) paging
horn.
The PA-2A will also generate an adjustable
loud warble from up to 6 C.O. lines or from a
dry contact closure. An external “night transfer”
switch can be added to turn loud ringing on or
off in night bell applications.
VIKING
ELECTRONICS
HUDSON, WI 54016
VIKING©
MODEL PA-2A
POWER
13.8VAC
1 2 3 4 5
RINGING
LINES
PAGING - LOUD RINGING
AMPLIFIER SYSTEM
PAGING RINGING
BATTERY
FEED
1-3 4-6
OFF ON
VIKING
ELECTRONICS
HUDSON, WI 54016
VIKING©
MODEL PA-2A
POWER
13.8VAC
1 2 3 4 5
RINGING
LINES
PAGING - LOUD RINGING
AMPLIFIER SYSTEM
PAGING RINGING
BATTERY
FEED
1-3 4-6
OFF ON
+
-
Installation/Programming
A. Paging and Loud Ringing
1. Paging Port
a. Move the BATTERY FEED switch to the OFF position.
b. Connect pins 4 and 5 to the paging port output.
Important: Background music can NOT be added when
interfacing the PA-2A to a Paging Port.
2. Trunk/Line Port
a. Set the BATTERY FEED switch to the ON position.
b. Connect pins 4 and 5 to an unused trunk or line input.
c. Background music may be added as shown. The music level will be greatly reduced during the page.
Paging port or
unused trunk port
C.O. lines or
analog
PABX/KSU
stations
Paging Volume Control
+
-
Ringing Volume Control
120V AC
Lines 1, 2 and 3
Lines 4, 5 and 6
Background Music
Source
Background music may be used with
an unused trunk port only. Remove
the shunt located to the left of the
screw terminal block.
(2) 10K resistors
(included)
Note: Pin 3 must be grounded when C.O. lines
are connected to the RINGING LINES ports.
VIKING
ELECTRONICS
HUDSON, WI 54016
VIKING©
MODEL PA-2A
POWER
13.8VAC
1 2 3 4 5
RINGING
LINES
PAGING - LOUD RINGING
AMPLIFIER SYSTEM
PAGING RINGING
BATTERY
FEED
1-3 4-6
OFF ON
Background Music Source
Important: If background music is added, remove the
shunt located to the left of the screw terminal block as
shown below.
(2) 10K resistors
(included)
Unused
Trunk
Port
Lines
1, 2 and 3
Lines
4, 5 and 6
VIKING
ELECTRONICS
HUDSON, WI 54016
VIKING©
MODEL PA-2A
POWER
13.8VAC
1 2 3 4 5
RINGING
LINES
PAGING - LOUD RINGING
AMPLIFIER SYSTEM
PAGING RINGING
BATTERY
FEED
1-3 4-6
OFF ON
Lines
1, 2 and 3
Lines
4, 5 and 6
Paging Port
Note: For information on speakers to use,
ambient noise levels, and speaker wiring
retrieve Fax Back Document 498.
Note: For information on speakers
retrieve Fax Back Document 498.
see Installation section B, 1.
Ringing Analog Lines
see Installation section B, 1.
Ringing Analog Lines
Shunt
VIKING
ELECTRONICS
HUDSON,WI 54016
VIKING
ELECTRONICS
HUDSON,WI 54016
VIKING
ELECTRONICS
HUDSON,WI 54016
VIKING
ELECTRONICS
HUDSON,WI 54016
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