L1-09D.09 – NFPA 731 Requirements Each transmitter shall be individually identified at the receiver/control unit. The battery shall be capable of operating the low-powered radio transmitter for not less than 1 year. Maximum allowable delay from activation of an...
L1-09D.08 – Limited Battery Life Typical lifespan for wireless batteries is 1-5 years. Will need additional service calls to replace batteries Lithium batteries may add to...
L1-09D.06 – How Do Systems Vary? Systems use a variety of antennas to focus the signals and most use either the 900 Mhz or 2.4 Ghz frequencies to communicate. Because both of these frequency ranges are used by other devices, some manufacturers use spread spectrum...
L1-09D.05 – RFI- Radio Frequency Interference Signals from amateur radios, CBs, and radio and television stations Can interfere with data transmissions Can Block Radio signals Interference...
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