POWER SUPPLIES


MEETING NEW


As interest in being more eco-friendly grows, people are becoming increasingly interested in minimizing their power consumption. In the security world, those attitude changes are beginning to strongly influence the design of power supplies. SDM talked with several manufacturers that offer products in this market about these and other design changes, including new designs that are on the market now and others that are currently under development — all of which open new possibilities with


power supplies. By Joan Engebretson, Contributing Writer


82 October 2010


POWER DEMANDS I


Power Supplies for Burglar & Fire Alarm Systems


Rising Power Needs, New Regulations


ronically the move toward more eco-friendly power supplies comes at a time when manufactur- ers have seen the power needs for security systems rising. “Demands on intrusion systems have gone


up as building size has increased,” comments Gene Pecora, general manager of Northford, Conn.-based manufacturer Honeywell Power Products. While a 1A power supply might have been typical for a residential alarm system in the past, today it’s not uncommon for a system to require a 3 or 5A power supply, Pecora says. Meanwhile today’s fire systems must meet standards requiring the systems to notify people of certain condi- tions — a requirement that wasn’t so common in the


Elk Products offers a supervised remote power supply to meet the needs of security systems with extra power requirements (shown here with zone input expanders.)


PHOTO COURTESY OF ELK PRODUCTS


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