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    How to interpret System Troubles with the D621 Keypad.

    • 1.  Ensure the area is disarmed.
    • 2.  Press Cmd + 4 + 2.  The flashing Cmd light is a prompt to enter a valid passcode. 
    • 3.  Enter a valid passcode and the D621 displays system trouble events by lighting the point indicators (zone leds)as described below:
    •  Zone 1 Lit steady = Telephone line Fail
    •  Zone 1 Slow Flash = Comm Fail, Destination 1
    •  Zone 1 Fast Flash = Comm Fail, Destination 2
    •  Zone 2 Lit steady = Alternate Comm Trouble
    •  Zone 3 Lit steady = Installer Switch Closed
    •  Zone 4 Lit steady = Backup Battery low
    •  Zone 4 Lit steady = Slow Flash = Backup Battery Missing
    •  Zone 5 Lit steady = Bell Supervision Fail
    •  Zone 6 Lit steady = RF Receiver Jamming
    •  Zone 6 Slow Flash = RF Receiver Trouble
    •  Zone 7 Lit steady = Data Bus Device Missing
    •  Zone 7 Slow Flash = Data Bus Device Tamper
    •  Zone 7 Fast Flash = Data Buss Device Trouble/Reset
    •  Zone 8 Lit steady = System Fault
    •  Zone 8 Slow Flash = Service Interval
    •  Zone 8 Fast Flash = Ground Fault Condition
    Press Cmd to return to the off state.
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    Last update:
    ‎07-11-2018 06:38 PM
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