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 Posted: Wednesday Aug 30th, 2023 06:54 am
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slychiu



Joined: Saturday Apr 29th, 2006
Location: Singapore
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How to check Zone Trouble for system with NO EOL Resistors.

CM9001 with NO EOL Resistors setting is selected  in Each Zone. No EOL Resistors means the 2K7 and 4K7 EOL resistors are NOT connected on the zone.
If the zone still shows Zone TYrouble, then it may be a problem for the magnetic conbtact or PIR or the wires to the zone terminal. There should be NO volatge on the zone, ie the zone should detect Opoen or Closed contact. Zoine TYrouble is detected when there is a stray VOLTAGE on the zone.

Disconnect the wires from the terminal (or remove the terminal block). Do a Security Chekc Keypad F,3,2. This announces all open zones or Trouble zones. When the terminal block of the zone has been removed, Shirt and Open the zones on the terminal., The keypad shouyld announce the zone when Open. There should nopt be zone trouble announced. If the zone tyroub le is announvced then there is a problem with the CM9001 hardware. If there is NO Zone Trouble, then there is a problem with the wires to the zone/sensor or the sensor itself

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