Thursday, May 16, 2013

Cable Toner Creates Fire Alarm Sound

Fire Alarm Cable TonerA cable toner can prove to be a very useful tool in the fire alarm system installation and service business. If you do not know, a cable toner is a battery operated device that places a tone across cables assisting in location and verification. You can simply connect the toner to a pair of wires and then move between junction points with the provided wand looking for the tone. Later, I may write a post on basic operation of a toner but for now, I am going to show you a little trick to help verify your fire alarm voice evacuation speakers are connected correctly.  Fluke Networks Intellitone Pro 200 Toner And Probe Kit (Google Affiliate Ad)

Fluke Multi Meter for Fire Alarm TroubleshootingOf course it is highly recommended to test out your fire alarm speaker circuit with a multi-meter before coonecting to your amplifiers. With a multi-meter, you can test for reverse polarity (with the diode check), ground faults, shorts and continuity with the resistance setting and fianally check for AC inductance with the AC voltage setting. Once you have verified all is good on your fire alarm speaker circuit we can move on to the cable toner test. I have included a simple video to show the connections and the tone you should receive at all of the speakers connected to the fire alarm circuit. Make sure to turn on the cable toner to the "TONE" setting and connect it to the circuit. Red to red and black to black. This will allow the cable toner to produce a tone across the fire alarm speaker circuit and pronounce it through the actual speakers. Once this step is completed, walk around the site and verify that you have a fire alarm sound or tone on all of the speakers on the circuit.

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