1
The radio senses the Man Down condition and Pre-Alert
Timer is initiated.
2
Man Down condition continues for the time duration
defined in the Pre-Alert Timer field. At the end of this
time, the radio alerts the user on the Man Down status
with an audible alert tone and
MAN
-
DOWN
text on the
screen. The Post-Alert Timer also initiates at this point.
3
Man Down condition continues for the time duration
defined in the Post-Alert Timer field. Once the timer
expires, the Emergency alarm is transmitted. The Man
Down Clear function is used in this phase to cancel the
Man Down condition.
The following scenarios affect the timers:
• Pressing the
PTT
button suspends the Man Down
timers; releasing the
PTT
button re-initiates the Pre-
Alert Timer.
• Pressing other buttons on the radio does not impact
these timers.
• Repositioning the radio exits the Man Down feature,
which stops and resets the timers.
• Pressing a preprogrammed
Clear
button or pressing a
Menu Select
button preprogrammed for
Clear
stops
and resets the timers. The timers do not restart until the
radio is repositioned.
NOTICE:
Emergency must be set up for this feature to
operate. For details on operating the Emergency
alerts, please see
If the radio is preprogrammed to horizontal only, it
must be worn in a vertical position otherwise the
Man Down alert may be inadvertently triggered.
When the radio is programmed with Man Down
feature, special care is required when charging the
radio with a wall mounted charger. See
Ways to Handle the Radio on page 18
for details.
Pre-Alert Timer
This timer sets the amount of time that a Man Down
condition must be present before the radio-user is warned
of the Man Down condition.
When the radio detects that it has returned to the vertical
position or when the radio detects motion, the Pre-Alert
timer stops and is reset.
The Pre-Alert timer reinitiates when the radio detects it is in
the horizontal position or motionless again.
English
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