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TECHNICAL
TECHNICAL
SP393
SP393
Anti-Feed back
Paging Interface
June 25, 2012
Totally Eliminate Paging Feedback
Even the best designed paging systems can
experience feedback. Now you can eliminate
annoying feedback over your paging speak-
ers with Viking’s model SP393 digital
antifeedback paging interface.
The SP393 utilizes state of the art digital
recording technology to record the “live” page
from a phone system’s paging port output or
unused trunk port. The SP393 then immedi-
ately plays back the recorded page once or
twice (selectable) over the paging system.
Pages of up to 60 seconds can be stored and the SP393 automatically adjusts to the
page length for faster processing. In addition, the SP393 can be programmed to pro-
vide pre-page and post-page alert tones.
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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:
0.73 kg (1.6 lbs)
Environmental:
0°C to 32°C (32°F to 90°F) with 5% to 95% non-
condensing humidity
Sampling Rate:
64K (equivalent)
Maximum Page Length:
60 seconds
Output Impedance:
600 ohm
Maximum Audio Output:
2V RMS (driving a 600 ohm load)
Talk Battery:
24V DC (Trunk mode only)
Connections:
10 position screw terminal block
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• High quality (64K) digital message storage
• High output - 2V RMS into 600 ohms
•
60 second record time
• Compatible with Paging ports or Trunk ports
• Activate recording from VOX detection, contact
closure or loop detect (Trunk mode only)
• VOX sensitivity adjustment
• Cancel page feature
• Selectable page repeat
• Selectable pre-page alert tone
• Selectable post-page alert tone
• Adjustable alert tone volume
• N.O./N.C. relay contacts control paging system
• Record/Playback LED indicator
• Compatible with virtually all paging and telephone
systems
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Eliminate Paging Feedback in:
• Warehouses, Factories, Offices
• Retail Stores, Hotels, Airports
• Stadiums, School Gymnasiums, Pools
• Casinos, Bingo Halls, Dining Establishments
• Other large noisy areas
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FBI-1A with 60 Second Record Time