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Viking PA-2A Technical Practice
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Viking PA-2A Technical Practice

Paging amplifier loud ringer
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TECHNICAL
TECHNICAL
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The PA-2A provides loud ringing and paging to elec-
tronic key systems, 1A2 Key systems, PABX's as
well as No-KSU phones and multiline phones.
Paging is accomplished by connecting the PA-2A to
a paging port or unused telephone line input (trunk
port) of nearly any phone system.
The PA-2A will also generate adjustable loud ringing
from up to 6 analog lines or from a dry contact clo-
sure. Either a loud electronic warble, or one of three
other soft chime sounds may be selected. An external "night transfer" switch can be
added to turn loud ringing on or off in night bell applications.
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.
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• Two watts of paging power
• All lines are optically coupled for compatibility
with fax switches and analog PABX/KSU
stations
• Can provide background music from an external
source (trunk mode only)
• Paging from an unused trunk port or paging port
• 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)
• Provides loud ringing or night bell, from 1-6 lines
for warehouses, yards, etc.
• Output for controlling a 12 volt relay from 1-6
ringing lines
• Page alert tone (trunk mode only)
• 600 ohm output for sourcing high powered
amplifiers
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Add Paging and Multiple Line
Loud Ringing to Any Phone System
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• Amplified loud paging
• Night bell
• Loud ringing
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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 (loud electronic warble)
Speakers: (1) 25AE 8 ohm paging horn included, (3) maximum
Maximum Speaker Run: 91m (300 ft) maximum 18 AWG
Talk Battery: 24V DC
Connections: (2) RJ25 jacks, (1) 10 position screw terminal
block
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Paging Amplifier
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Loud Ringer
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August 29, 2005
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A-2A
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Summary of Contents for Viking PA-2A

  • Page 1 An external “night transfer” switch can be added to turn loud ringing on or off in night bell applications. 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.

  • Page 2: Fcc Requirements

    Viking warrants its products to be free from defects in the workmanship or materials, under normal use and service, for a period of one year from the date of purchase from any authorized Viking distributor or 18 months from the...
  • Page 3 Step 2. Connect pins 5 and 6 to the paging port output. Important: Page Alert Tone or background music can NOT be added when interfacing the PA-2A to a Paging Port. Note: For information on speakers to use, ambient noise levels and speaker wiring, see Fax Back Document 498.
  • Page 4 ALERT TONE WARBLE / CHIME RINGING LINES 1 - 3 4 - 6 Dry Contact Closure (not included) Night Transfer (Loud Ringing) Switch (not included) MODEL PA-2A © RINGING VOLUME VIKING ELECTRONICS HUDSON, WI 54016 PAGING - LOUD RINGING AMPLIFIER SYSTEM...
  • Page 5 4 - 6 1 2 3 4 5 D. Long Runs Between Amplifer and Speakers Very long runs between the PA-2A and the speakers might require 70V transformers (Parts Express 1-800-338-0531, part # 300-040 or equivalent). Note: For additional information on how to minimize loss of audio in long speaker runs, see Fax Back Document 856.
  • Page 6 An external amplifier can be added to increase the paging and loud ringing power. Simply connect the 600 OHM AUDIO OUTPUT screw terminals to the line level input of any high powered paging amplifier, such as the Viking M15W, or any existing paging system.
  • Page 7 In both instances, the PA-2A can monitor 1 - 6 C.O. lines, 1 - 6 analog PABX/KSU stations or a dry contact closure for loud ringing. The PA-2A will produce the selected ringing tone when ring voltage is detected on these line inputs or a contact is closed on pins 3 and 4.
  • Page 8 25AE Paging Horn are included. Due to the dynamic nature of the product design, the information contained in this document is subject to change without notice. Viking Electronics, and its affiliates and/or subsidiaries assume no responsibility for errors and omissions contained in this information. Revisions of this document or new editions of it may be issued to incorporate such changes.