
TD 92417GB
2009-03-11/ Ver. C
User Manual
Ascom a71 Alarm Tranceiver and Ascom p71 Transceiver
12
5.3 Man-down & No-movement Alarm
Man-down alarm: If the transceiver is tilted more than 55º for a preset time (default
7
seconds), the Man-down alarm will be activated.
No-movement alarm: If no movement is detected during a preset time (default 30
seconds), the No-movement alarm will be activated.
Note that the alarm is not sent directly when it is activated. When the alarm is activated, a
warning message is shown in the display: "Man-down alarm" or "No-movement alarm"
depending on which alarm that has been activated.
A warning signal called Man-down/No-movement Warning is also heard during a period
(default 7 seconds). The warning signal always starts with a pair of low volume beeps and
then continues with high volume beeps, and is alternating with the vibrator.
The warnings message and the warning signal are activated until any button is pressed, or
until the alarm has been sent. Press any button to prevent the alarm from being sent.
If no button is pressed, the alarm is sent. Depending on set parameters, a beep/vibrator/
LED signal confirms that the alarm has been sent. If configured in the PDM, an acoustic
location signal is activated after the alarm has been sent, see
5.4 Acoustic Location Signal
(ALS) on page 13.
Extra Delay
If the parameter “Extra delay” is enabled, the detection of Man-down & No-movement
alarm can be disabled for a configurable time (default 10 minutes). When the warning
signal sounds, press the "Mute" button. Press "Yes" to activate the extra delay.
Configuration of Man-down & No-movement Alarm
The following parameters are configurable via the PDM:
• Time of Man-down detection phase (time of a tilted state)
• Time of No-movement detection phase (time of a non-moving state)
• Time of Man-down/No-movement Warning phase
• Automatically key lock off at Man-down/No-movement warning
• Extra delay activation
• Extra delay time
For information on how to configure, see Configuration Manual, TD 92439GB.
Activate Man-down or No-movement Alarm again
When a Man-down alarm has been sent, the alarm is activated again by moving the
transceiver to upright position, that is, the alarm button shall be pointed upwards.
When a No-movement alarm has been sent, the alarm is activated again by moving the
transceiver.
It is also possible to activate the alarms again by pressing the Mute button.
Note: If ALS is enabled, the Man-down or No-movement alarm can only be activated
again by pressing the Mute button.
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