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NHRC-10 User Guide
Copyright
1999, 2000, 2001, NHRC LLC. All Rights Reserved.
Page 3
1.3 “Unlocked Mode”
All of the controller’s important programming information is protected by a special
password, the “unlock code.”
Programming the unlock code requires physical access to the controller to place a jumper
on the circuit board.
The unlock code cannot be re-programmed without physical access to the controller.
When the unlock code is successfully entered into the controller, the controller will say
“control access enabled,” and a special courtesy tone will be used to indicate the
controller is unlocked.
The controller can be locked by:
•
sending the “#” command, or
•
it will lock itself after two minutes of inactivity.
When the controller leaves the unlocked mode:
•
it will say “control access disabled,” and
•
the courtesy tone will revert to the normal tone for the controller’s current state.