King-Fisher Company, inc
81 Old Ferry Rd
Lowell, Massachusetts 01854

www.kfci.com | 978-596-0214

King-Fisher Company, inc is a world leader in critical protection systems monitoring and radio reporting systems. The company manufactures an entire line of radio reporting fire protection systems that includes
computer aided dispatch, receiving equipment, auxiliary panels, conventional panels and addressable
radio reporting systems.

 

For more information please visit www.kfci.com

Technology Presentation for Campus Fire Forum 2011
TRANSMITTING FIRE ALARMS RELIABLY AFTER THE SUNSET OF THE PSTN
by Gregory D. Lapin, PhD, PE

Today in the United States over 40 million alarm systems depend on digital dialers connected to redundant pairs of telephone lines to transmit signals to fire stations, dispatch centers and central stations. Digital dialers are most reliable when connected through the public switched telephone network (PSTN). Other forms of telephone lines such as VOIP and cellular often work poorly or not at all with digital dialer technology. It is predicted that by the end of this decade the regulated monopoly of the PSTN will be terminated and its infrastructure dismantled in favor of less expensive forms of telecommunications. Transmission of fire alarms will need an alternate method of communications that is as reliable as the PSTN. Direct radio transmission
of fire alarm signals can be designed to be more reliable than other communications methods and is an excellent replacement for existing digital dialers that utilize the PSTN.

Gregory D. Lapin, PhD, PE
Director of Engineering
King-Fisher Company, Inc
81 Old Ferry Rd, Lowell, MA 01854
greg.lapin@kfci.com | www.kfci.com
978-596-0214

Gregory D. Lapin received a PhD degree in Electrical Engineering from Northwestern University in 1987. He has worked in the Biomedical, Telecommunications and Fire Protection industries. He is a licensed Professional Engineer and serves as the Chairman of the ARRL RF Safety Committee. For most of the last decade Dr. Lapin also served on the FCC Technological Advisory Council and was considered an expert in RF bioeffects and public safety communications.