Alarm Box Wiring

Do-it-yourself alarm systems provide you with the opportunity to upgrade your home's security system at an affordable price. Some home layouts may require a wireless system, but in most cases, you can run your alarm's thin cables down door-frames, along floorboards and behind moulding with little trouble. The wiring instructions for your alarm box will vary from one alarm system to another. These instructions, based on the wiring of a DSG PC-1500 alarm box, provide you with general guidelines you can apply to your system.

Open the alarm box. Find the wiring legend strip and label each cable according to your alarm system's specifications. This will make following wiring instructions easier. Label the terminal connections of your alarm box. These include an AC battery connection, an auxiliary terminal, a bell box terminal, a keypad terminal and a series of zone terminals. Plan the alarm system layout of the building and divide its motion sensors by zone. Label each zone terminal with a brief description of its location.

Connect the motion sensors of each zone in series and wire back to their corresponding zone terminal at the alarm box. Connect the auxiliary terminal, often the second terminal on the left, to your tamp relay motion detector and to your alarm's keypad. Remember that black cables are negative and red cables are positive. If you have an unused zone terminal in your box, wire it to the previous zone's terminal to close the circuit.

Connect the yellow and green cables from your keypad to the keypad terminal of your alarm box. Green and yellow input terminals should be labelled.

Wire your bell box or siren to the bell terminal of your alarm box.

Wire the alternate current, AC, to the building's circuit ring-main to power your box. Join your alarm box battery charge connectors to a 12-volt gel cell battery as a source of backup power.

Things You'll Need

  • Alarm cable
  • Screwdriver
  • Wire cutter
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About the Author

Andrew Latham has worked as a professional copywriter since 2005 and is the owner of LanguageVox, a Spanish and English language services provider. His work has been published in "Property News" and on the San Francisco Chronicle's website, SFGate. Latham holds a Bachelor of Science in English and a diploma in linguistics from Open University.