care should be taken to dress the wire so that when the cover
is inserted into the chamber the wires do not exert excess
pressure on the terminal blocks. This is particularly important
when using cables with large cross sectional areas such as
2.5mm² and above.
BExDS110D DC Sounder
Volume Control
DIP Switch
BExDS110D AC
Sounder
Volume Control
DIP Switch
13)
Tone Selection and 2nd and 3rd Stage Alarms
The BExDS120D and BExDS110D sounders have 32 different
tones that can be selected for the first stage alarm. The
sounders can then be switched to sound second and third
stage alarm tones. The tones are selected by operation of a
DIP switch on the pcb for both DC and AC units. The tone
table on page four shows the switch positions for the 32 tones
and which tones are available for the second and third stages.
To operate the sounder on stage one simply connect the
supply voltage to the normal supply terminals (+ve and –ve for
DC units, L and N for AC units).
The operation of the second and third stages is different for DC
and AC units.
DC Units Second and Third Stage Tone Selection
The BExDS120D and BExDS110D DC sounders have the
facility to use either +ve or –ve switching to change the tone to
the second and third stages. For –ve switching connect the two
headers on the pcb to the left-hand (marked –ve) and centre
pins. For +ve switching connect the headers to the right hand
(marked +ve) and the centre pins. To change to the second
stage tone, connect either a -ve or +ve supply line to terminal
S2, depending on which switching mode is being used while
maintaining the dc supply to the +ve and –ve terminals.
Similarly for the third stage tone, connect a -ve or +ve supply
line to terminal S3. The supply to the S3 terminal will
automatically override a supply to the S2 terminal.
__________________________________________________________________________________________________________________________________
European Safety Systems Ltd. Impress House, Mansell Road, Acton, London W3 7QH
Document No. IS 2451-P
Stage Headers
S2
S3
-
+
DC Terminals
Figure 6
Stage Terminals
S2
S3
C
N
L
AC Terminals
Figure 7
Issue E
19-02-10
AC Units Second and Third Stage Tone Selection
To select the second and third stage tones on the BExDS120D
and BExDS110D AC sounders the Common (C) terminal on
the three way terminal block on the pcb is connected to the S2
terminal for the second stage tone and the S3 terminal for the
third stage tone.
14)
Volume Control
All BExDS120D and BExDS110D sounders, with the exception
of 12V DC 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.
15)
End of Line Monitoring (DC Units)
On BExDS120D and BExDS110D DC units, dc reverse line
monitoring can be used if required. All DC sounders 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 min. wattage of 2 watts.
TONE SELECTION TABLE
Tone Selection
Stage 1
Frequency Description
1
Continuous 1000Hz
Toxic gas alarm
2
Alternating 800/1000Hz at 0.25s
intervals
3
Slow Whoop 500/1200Hz at 0.3Hz
with 0.5s gap repeated
4
Sweeping 800/1000 at 1Hz
5
Continuous at 2400Hz
6
Sweeping 2400/2900Hz at 7Hz
7
Sweeping 2400/2900Hz at 1Hz
8
Siren 500/1200/500Hz at 0.3Hz
9
Sawtooth 1200/500Hz at 1Hz
10
Alternating 2400/2900Hz at 2Hz
11
Intermittent
General alarm
12
Alternating 800/1000Hz at 0.875Hz
13
Intermittent 2400Hz at 1Hz
14
Intermittent 800Hz 0.25s on 1s off
15
Continuous at 800Hz
16
Intermittent
150mS off
17
Alternating 544Hz
(100mS)/440Hz(400mS)
18
Intermittent 660Hz 1.8s on, 1.8s off
19
1400Hz to 1600Hz sweep up over
1s - 1600Hz to 1400Hz sweep down
over 0.5s
20
Continuous 660Hz
21
Alternating 554/440Hz at 1Hz
22
Intermittent 554Hz at 0.875Hz
23
800Hz pulsing at 2Hz
24
Sweeping 800/1000Hz at 50Hz
25
Sweeping 2400/2900Hz at 50Hz
26
Simulated bell sound
27
Continuous 554Hz
28
Continuous 440Hz
29
Sweeping 800/1000Hz at 7Hz
30
420Hz repeating 0.625s on, 0.625s
off Australian alert signal
31
1200/500Hz at 1 Hz
Prepare to abandon platform
32
Sweeping 500/1200Hz 3.75s on,
0.25s off 15Hz
www.e-2-s.com
Sheet 4 of 4
Note Switch No. 6 is not used
DIP Switch
Settings
1 2 3 4 5
0 0 0 0 0
1 0 0 0 0
0 1 0 0 0
1 1 0 0 0
0 0 1 0 0
1 0 1 0 0
0 1 1 0 0
1 1 1 0 0
0 0 0 1 0
1 0 0 1 0
1000Hz
at
0.5Hz
0 1 0 1 0
1 1 0 1 0
0 0 1 1 0
1 0 1 1 0
0 1 1 1 0
660Hz 150mS on,
1 1 1 1 0
0 0 0 0 1
1 0 0 0 1
0 1 0 0 1
1 1 0 0 1
0 0 1 0 1
1 0 1 0 1
0 1 1 0 1
1 1 1 0 1
0 0 0 1 1
1 0 0 1 1
0 1 0 1 1
1 1 0 1 1
0 0 1 1 1
1 0 1 1 1
0 1 1 1 1
1 1 1 1 1
Tel: +44 (0)208 743 8880
Fax: +44 (0)208 740 4200
Stage Selection
Stage 2
Stage 3
Tone 31
Tone 11
Tone 17
Tone 5
Tone 2
Tone 5
Tone 6
Tone 5
Tone 3
Tone 27
Tone 7
Tone 5
Tone 10
Tone 5
Tone 2
Tone 5
Tone 15
Tone 2
Tone 7
Tone 5
Tone 31
Tone 1
Tone 4
Tone 5
Tone 15
Tone 5
Tone 4
Tone 5
Tone 2
Tone 5
Tone 18
Tone 5
Tone 2
Tone 27
Tone 2
Tone 5
Tone 2
Tone 5
Tone 2
Tone 5
Tone 2
Tone 5
Tone 2
Tone 5
Tone 6
Tone 5
Tone 29
Tone 5
Tone 29
Tone 5
Tone 2
Tone 1
Tone 26
Tone 5
Tone 2
Tone 5
Tone 7
Tone 5
Tone 32
Tone 5
Tone 11
Tone 1
Tone 26
Tone 1
(4)