View single post by slychiu
 Posted: Saturday Aug 4th, 2018 07:18 am
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Joined: Saturday Apr 29th, 2006
Location: Singapore
Posts: 5242

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If Double End of Line Resistors are connected to a Zone/Input, a Zone Trouble Alarm will occur if the zone wires are cut (or disconnected) or shorted.The keypad will beep for 10 seconds and "Zone Trouble, (zone name)" will be shown on the Keypad LCD. The zone name or number will be shown on the LCD

If a zone trouble occurs when the security system is armed, it causes an Intruder Alarm.

If the zone shunts are set to No EOL (ie shunt is closer to the terminal block), zone trouble should NOT occur in normal conditions. However a Zone Trouble may occur if there is an external voltage on the zone input (not just open or short), OR the zone shunts may be having poor contact due to oxidation. remove the shunt and insert or replace with another new shunt

Last edited on Saturday Aug 4th, 2018 07:19 am by slychiu

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