Funktel f.airnet D5 Series, Operating Manual, Page: 138 / 160

138
Background knowledge D5 / FC5 Series
1 The handset identifies an automatic alarm condition. As from this point
in time, the reaction time is calculated in accordance with DIN VDE V
0825-1.
2 The alarm condition recognised at the point in time (1) still exists, the
handset begins local pre-alarm signalling.
3 The carrier of the handset reacts to the pre-alarm by eliminating the
alarm condition or by acknowledging the pre-alarm. The pre-alarm sig-
nalling is then muted and triggering of the personal alarm after the
elapse of the personal alarm time (4) is averted for the time being. The
only point in time (3) at which a pre-alarm can be acknowledged is dur-
ing the pre-alarm time (c).
4 The handset sends a personal alarm to the control centre, because nei-
ther has the alarm condition fallen away, nor has a pre-alarm acknowl-
edgement taken place during the personal alarm time (a). In addition,
the handset commences with local personal alarm signalling (d), until
the personal alarm has been reset.
5 The reaction time ends with the arrival and signalling of the alarm at the
control centre according to the DIN VDE V 0825-1 preliminary standard.
The personnel in the control centre can commence implementing relief
measures.
6 For the alarm to be ended by the handset, the alarm must be reset ei-
ther by the control centre or by an operation on the handset that sent
the alarm.
NOTE
The delay time and the pre-alarm time are omitted for both the manual
push-button alarm and the manual warning! Each will-dependent
pushbutton alarm leads directly to a personal alarm after a long key-
stroke on the emergency call button!