__________________________________________________________________________________________________________________________________
European Safety Systems Ltd.
Impress House, Mansell Road, Acton, London W3 7QH [email protected] Tel: +44 (0)20 8743 8880
www.e2s.com Fax: +44 (0)20 8740 4200
Document No. IS 2425-P Issue B 17-04-02 Sheet 4 of 4
14)
Recording a Message
Before installing the Appello units in a hazardous area the
message required to be broadcast must be recorded onto the
unit. A single message of up to 16 seconds can be recorded
on each Appello unit. The message must be recorded while
the unit is still in a safe area.
To record a message the Appello must be connected to an
input supply voltage appropriate to the unit being used, i.e.
24V for DC units and either 230V or 115 V for AC units
depending on the unit voltage.
1)
Set the unit to the record mode by shorting out the
record header pins marked R, (see figure 4).
2)
Switch on the power supply to the unit.
3)
Press and hold the Push Switch while speaking into
the microphone to record a message of up to 16
seconds in duration. NOTE IF THE LED INDICATOR
GOES
OUT
BEFORE
THE END
OF
THE
RECORDING, THE MESSAGE LENGTH HAS BEEN
EXCEEDED AND WILL NEED TO BE RECORDED
AGAIN.
4)
Release the push switch at the end of the message.
5)
Switch off the power supply.
6)
Remove the pin header from the record pins R.
7)
Check that the message has recorded correctly by
switching on the power supply and the message
should play back.
15)
Tone Selection
The message can be preceded by one of nine selectable tones
or by a silence period of 0.5 seconds.
To select the required tone or the silence period the header
pins A B and C (see figure 4) should be patched as per the
tone table on this page.
TONE SELECTION TABLE
Tone No.
Tone Description
16)
End of Line Monitoring (DC Units)
On BExA120D and BExA110D DC Appello units, dc reverse
line monitoring can be used if required. All DC units have a
blocking diode fitted in their supply input lines. An end of line
monitoring diode or an end of line monitoring resistor can be
connected across the +ve and –ve terminals. If an end of line
resistor is used it must have a minimum resistance value of
3k3 ohms and a minimum wattage of 0.5 watts or a minimum
resistance value of 500 ohms and a minimum wattage of 2
watts.
17)
Volume Control
All BExA120D and BExA110D Appello units have a volume
control to adjust the output level. To set the required output
level adjust the potentiometer on the pcb. For maximum output
level the potentiometer should be set to the fully clockwise
position.
SAFETY NOTE
To maintain safety when recording a message on AC Appello
units, an earth wire must be connected to the earth terminal on
the three-way terminal block and the Terminal Cover must be
replaced before the supply to the unit is switched on (see
figure 5).
1
Alternating 800/1000Hz @ 2Hz.
4 cycles
2
Slow W hoop 500/1200Hz @
0.3Hz with 0.5 gap.
2 cycles
3
Sawtooth 1200/500Hz @ 1Hz
4 cycles
4
Alternating 544/440Hz @
100/400mS intervals.
4 cycles
5
Continuous @ 1000Hz
2 seconds
6
Simulated Bell sound
2 seconds
7
Australian Alert 420Hz with
0.625 sec intervals.
4 cycles
8
Intermittent 1000Hz @ 0.5Hz
3 cycles
9
Australian Evacuate 500/1200Hz
3.75 sec. ON - 0.25 sec OFF
2 cycles
10
Silence 0.5sec gap
R C B A
R C B A
R C B A
R C B A
R C B A
R C B A
R C B A
R C B A
R C B A
R C B A
