Operating instructions
draft
Dedicated Micros ©2008
61
DV-IP HD
Alarm Input
This menu allows conguration of the alarm settings, refer to ‘Installing the DV-IP HD Unit’ for
hardware installation guidance.
Number This identies which input is being congured. The unit supports
20 on-board alarms.
Enabled Each input must be enabled to function. If the input is not enabled
and an alarm is received, the unit will not acknowledge the alarm.
N_O (Normally Open Contact) By default an input will normally be closed, ticking the N_O box
forces the corresponding input open for alarm.
EOL The End Of Line (EOL) option enables the inputs to detect any
changes in the electronic input resistance. A change outside the
expected values will result in a Tamper Alarm (short circuit or open
circuit) being detected and the system switching to alarm mode.
Pulse Ext A pulse extension is used to prevent double triggers on a single
alarm. The pulse extension time starts on an alarm trigger. If that
contact is triggered again after the rst alarm has nished but
within the pulse extension, the second trigger will not restart the
alarm, but will extend the current alarm duration. Enter the time in
milliseconds for this extension.