Press Releases

Keltron Corporation introduces the Keltron Solid State Master Box
Enables transmission of multiple signals, improves alarm response, withstands severe climate

Waltham, Mass., June 17, 2008 – Keltron Corporation, leading provider of life safety event management solutions, introduces the Keltron Solid State Master Box (SSMB). Still in use throughout New England and the Mid-Atlantic regions, the municipal loop fire alarm system has long provided a means for transmitting fire alarms to the fire department from a protected building or facility.

The Keltron SSMB is an NFPA 72-compliant, FM-approved electronic coded transmitter for use on telegraphic fire alarm reporting systems. It is designed and manufactured using components that are known for their reliability and for being able to withstand temperature extremes and severe climate conditions such as lightning strikes.

The major benefit of the Keltron master box is that by monitoring multiple outputs from an existing fire panel and allowing the transmission of multiple signals, it enables the fire department to receive alarms by zone and to differentiate among alarms, troubles, or supervisory signals. “This capability increases the first responders’ knowledge of the exact nature or specific location of the incident, improving the accuracy of the department’s response”, said Steve Sargent, director of sales for Keltron.

Keltron Solid State Master Box features include:

  • Field-programmable functions using desktop/laptop with standard 9-pin straight through cable, or using onboard rotary switches
  • Eight programmable input zones and eight respective zone relays
  • Local energy trip input
  • Adjustable code timing from 1/8 to 2.5 seconds in 1/16-second increments
  • Computer diagnostics
  • Fail-safe trouble relay is normally energized; any trouble condition will de-energize the relay causing status change
  • Municipal or summoning loop operation options

About Keltron Corporation
Keltron Corporation is a leading provider of life safety event monitoring solutions that enable organizations and companies to provide dependable, scalable, incident response services. Keltron designs and manufactures universally-compatible, UL-listed signaling systems including Ethernet, active network radio, distributed multiplex, direct wire, digital communication and coded systems.

Keltron’s solutions protect thousands of hospitals, museums, municipalities, universities, residential, industrial and commercial buildings, government and military facilities. Companies and organizations that rely on Keltron’s systems include Sun Oil Co., US Steel, Florida State University, George Mason University, and the City of Naperville, Illinois. Keltron’s headquarters are in Waltham, MA. For more information, visit or call 800-966-6123.

Lisa Korklan
Keltron Corporation