
118
Personal emergency signal functions
Will-independent emergency signal functions
Time sequence
Any will-independent alarm results in the transmission of the alarm to the personal
emergency signal centre as soon as the alarm condition occurs and the programmed
delay and pre-alarm time have expired. You can stop the transmission of the alarm if
you eliminate the alarm condition during the delay and pre-alarm time, or if you ack-
nowledge the pre-alarm during the pre-alarm time.
a
d
b
c
e
1
2
3
t
4
5
6
Time sequence of will-independent emergency signal functions in case of alarm
Legend
No.
Designation
Description
1
Alarm condition occurs
The radio set identifies a will-independent alarm con-
dition.
2
Start of pre-alarm on
the radio set
The alarm condition detected at time (1) still exists.
The radio set starts signalling the pre-alarm.
3
Acknowledgement of
the pre-alarm by the
user
If you acknowledge the pre-alarm during the pre-
alarm period or if you eliminate the alarm condition,
the pre-alarm signal will stop. The alarm is not trigge-
red for the time being.
The possibility of acknowledging the pre-alarm only
exists during the pre-alarm time (c).
4
Transmission of the
alarm
The radio set transmits an alarm to the personal
emergency signal centre. In addition, the radio set
starts signalling the alarm (d). This lasts until the
alarm is reset.
5
Arrival of alarm at the
personal emergency
signal centre
The alarm is received at the personal emergency
signal centre immediately after being transmitted by
the radio set. The personnel at the personal emer-
gency signal centre begins to initiate emergency
measures.
Содержание FT4
Страница 1: ...TETRA Radio Set Funkwerk FT4 S Operating Manual...
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Страница 30: ...26 Conformity and approvals EC declaration of conformity...
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Страница 142: ...138 Personal emergency signal functions Shutting down...
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