User`s guide

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is by pressing the radio’s H/L button. If this option is disabled, the
alarm is disarmed on receipt of an incoming call.
Ext Alarm Delay (sec) This field will be visible only if the Horn and Lights option is enabled. Enter
the desired value for the time delay before Horn and Lights are
activated. The valid range is 0 (zero) to 15 seconds.
Horn Duration (sec) This field will be visible only if the Horn and Lights option is enabled. Enter
a desired value for the maximum length of time the horn will stay on
before the user responds to a call. Valid values range from 1 to 255. A
value of Infinite is also available.
Lights Duration (sec) This field will be visible only if the Horn and Lights option is enabled. Enter
a desired value for the maximum length of time the light will stay on
before the user responds to a call. Valid values range from 1 to 255. A
value of Infinite is also available.