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Telephone Line Voltage Loss Monitor Station

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Item Number: 637-201-LV1K

Line Verification Panel with Key Switch

New ASME A17.1-2010 code requires that “the two-way communications means within the (elevator) car shall include a means to verify operability of the telephone line”. When your local municipality adopts this new ASME A17.1 code the LV-1K can be added to fulfill all requirements for visual and audible signaling when it is determined the telephone line is not functioning. 

The LV-1K is essentially two products in one. First, it can be added to any new or existing VRT-1000 Series elevator emergency as a single phone stand alone solution. With the LV-1K installed, the VRT-1000 Series phone will check the telephone line for dial tone on a daily basis. The LV-1K will provide an audible and visual indication when the telephone line is not functional.

In accordance to ASME A17.1, the LV-1K has labeled “ELEVATOR COMMUNICATION FAILURE” in red letters, and will sound an audible signal every 30 seconds and flash a red light when a telephone line fault is detected. Authorized personnel can silence the audible signal with the included key switch. The LED will remain flashing until the fault is corrected.  


  • Power: 120V AC/ 12V DC UL Listed adapter provided
  • Dimensions: 124 mm x 124 mm x 33 mm (4.9” x 4.9” x 1.3”)
  • Environmental: 0 C to 32 C (32 F to 90 F) with 5% to 95% noncondensing humidity
  • Maximum Power Supply Wire Length: 244m (500 ft) with #24 gauge wire
  • Connections: (6) color-coded wires with (6) gel-filled butt connectors
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