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.
The keypad will display ‘Command Disabled’ when the Menu key is pressed for one of the following reasons.
If the menu item # 1 in the function list is set with a function 0 and marked yes for any Command Center.
If all of the Functions for the Command Center are selected as No (disabled).
To prevent the keypad from displaying ‘Command Disabled’ after selecting Menu;
Select a non-zero value for the Function # of Menu Item 1.
Ensure that at least one of the Menu Items intended for use are set as Yes.