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Viking Electronics VK-LM-1A Universal message waiting ligh

Viking Electronics VK-LM-1A Universal message waiting ligh
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Viking Electronics VK-LM-1A Universal message waiting ligh


The Viking LM-1A universal message waiting lamp retrofit kit is compatible with any telephone system with standard DC message waiting voltages ranging from 90VDC to 120 VDC. The LM-1A is fully modular for quick plug-in installation by non-telephone personnel. The unit's LED will blink at a steady rate when the message waiting voltage is detected. The LM-1A will also flicker when the phone rings, helping to reduce noise in quiet areas by providing a convenient visual indication for ringing or message waiting.

Also known as

  • Viking Lm-1a Universal Message Waiting Light
  • Viking Lm-1a Universal Message Waiting Ligh (lm1a)
  • Viking Phone Accessories Universal Message Waiting Light VK-LM-1A
  • Viking Electronics LM-1A Universal Message Waiting Light


  • Attractive styling
  • Easy retrofit mounting
  • Works with nearly all message waiting voltages
  • Made in the USA.


Applications  Message waiting indication on analog lines supplying standard message waiting voltages, Ring indicator in offices
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localExtraImages  ["VKLM1A_1.jpg"]
Input  80V DC to 150V DC message waiting voltage minimum 40V AC ring voltage
Viewing Distance  Up to 15m (50 feet)
Dimensions  2.56” x 1.38” x .79”
Environmental  0 C to 32 C (32 F to 90 F) with 5% to 95% non-condensing humidity
Connections  (2) RJ11 plugs

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