Retrofit Message Waiting Light (Model LM-1)

Designed to work on analog telephone lines or single line stations, the LM-1 will provide a message waiting light where standard message waiting voltage is provided. The LM-1 is easily installed on modular phones.
Add Message Waiting Lights to Analog Phones!
The message waiting lamp retrofit kit is compatible with any telephone system with standard DC message waiting voltage capabilities or Viking’s MLC-24 Message Waiting Lamp Controller. The LM-1 is fully modular for quick plug-in installation by non-telephone personnel. The LM-1 will light in relationship to the voltage being supplied.

The LM-1 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.

Works with nearly all message waiting voltages message waiting indication on analog lines supplying standard message waiting voltages

Important: The LM-1 SP153, a 90V DC model of the LM-1, must be used with the following systems:

  • Comdial DXP Plus
  • Cortelco (ITT) SL1000 PABX
  • Executone IDS PABX
  • Hitachi DX PABX
  • Mitel SX100/SX200 (analog) PABX’s
  • Mitel SX200 digital PABX
  • NEC 2400 PABX
  • Northern Telecom CO switch
  • Siemens Saturn PABX’s
  • Toshiba Perception PABX’s

Note: The LM-1 and the LM-1 SP153 are not compatible with any AT&T phone systems.

  • Attractive styling
  • Easy retrofit mounting
  • Works with nearly all message waiting voltages
  • One year warranty
  • Made in the USA
  • Power: 120V DC (standard), 90V DC (SP153)
  • Dimensions: 76mm x 51mm x 25mm (3" x 2" x 1")
  • Shipping Weight: .45kg (1 lb.)
  • Environmental: 0°C to 32°C (32°F to 90°F) with 5% to 95% non-condensing humidity
  • Connections: (1) RJ11 jack, (1) RJ11 plug