a) One blink of the TROUBLE LED means the AD400 on this channel has low AA batteries. Install fresh batteries.
b) Two blinks of the TROUBLE LED means the AD400 on this channel is not communicating on the RF LINK. Re-LINK the AD400 and PIM400-TD2.
c) Three blinks of the TROUBLE LED means the AD400 on this channel has a tamper switch violation. Investigate the locks tamper switch.
d) Five blinks of TROUBLE LED means the AD400 on this channel has used cache mode to allow access during a communication loss to the PIM400-TD2 or the Access Control Panel. Press the LINK button for this channel once to acknowledge the trouble and clear the blinking. Press it only once; because a second press will restart LINKING for this channel and will require you to re-LINK the lock.
e) The AD400 does not need the coin cell to function correctly. Reporting of low coin cells in the AD400, PIM400 is removed in ADFwPkg 1.2.0 or newer.
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