Key Management Systems Ltd
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Security / Alarms
Power Cut
If there is a power cut, then the system is set up to automatically unlock the doors
when Fail-Safe locks are used. When Fail-Secure locks are used the system will apply
power to unlock the doors.
When power is returned the system resets and locks operate as normal.
Loss of Data
If the (data) line from the BUS to the Reader Interface is cut (M2S/S2M) then the
Reader Interface alarm sounds for one minute and then beeps every 5 seconds until
the problem is fixed. The light on the corresponding reader also flashes and an alarm
event is generated.
If data is lost to the Lock Controller then an alarm sounds and, dependent on the
configuration, the RTE and Lock Controller does/does not operate the lock outputs to
make ‘safe’ the building.
System Controller
The door contact input on the System Controller is Off by default (0 seconds). This
means that if the door does not close for any reason (e.g. propped open) there is an
alarm on the controller and a Door Left Open event is generated.
If the door (contact) is opened without the use of an RTE/authorised token then there
is an alarm on the controller and a Door Forced event is generated.
Note:
Door Forced alarms will automatically be acknowledged once
the door contacts have been reinstated.
