Klaxon Nexus 110 Low Voltage Installation Instruction
Nexus110
1. Technical Specification: Low Voltage AC Sounder
Supply Voltage Range 20-53V AC, 50/60Hz
Current 10-50mA* (Typ. 45mA @ 24V, Tone 1)
Peak Sound Level: 104-116 dBA at 1m* (Typ. 110dBA @ 24V, Tone 1)
Number of Tones: 64
Frequency Range 340-2900 Hz*
Volume Control 20dBA typical
Remote Tone Switching Provision for 3 volt-free contact activated alarm stages
Operating Temperature: - 25°C to +55°C
Casing: High Impact Polycarbonate/ABS
IP Rating: IP66 with suitable cable glands
Synchronisation Automatic with Klaxon Nexus and Sonos Sounders
*depends on selected tone and supply voltage
2. Installation
a. The sounder is installed by first mounting the base unit and making the external wring connections to
the base. The head unit then automatically connects when it is attached to the base.
b. The sounder head is separated from the base by unlocking the four ¼-turn fasteners in the corners of
the sounder. (Recommended screwdriver: Philips No. 2, min 100mm long).
c. Note that the head only fits onto the base one way around.
3. Wiring
4. Controls
a. Power
Device Common (Neutral) 20-50V AC
Sounder
AC1 AC2
Each power terminal is duplicated to enable simple ‘daisy-chain’ connection of multiple units
b. Remote Tone Switching (If required): Externally link control terminals as shown below.
Alarm Stage Example Signal Activation
Stage 1 ‘Alert’ No connection (Default)
Stage 2 ‘Evacuate’
Stage 3 ‘All Clear’
Link terminal
Link terminal
to terminal
to terminal
a. Tone Selection
m
The first and second stage alarm tones are independently set using 6-way dipswitches S1 and S2
respectively. The required settings are shown in the table overleaf. The third stage alarm tone is
pre-set to complement the selected first stage tone as shown in the table.
j
b. Volume Control
y
The sound output of the unit can be reduced by up to 20dBA by adjusting the potentiometer. At
low sound levels the sound may take a few seconds to decay away after power is removed from the
sounder.
18-186508/4
1H[XV/RZ 9ROWD J H $& Tone Table
TONE
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
11.
12.
13.
14.
15.
16.
17.
18.
19.
20.
21.
22.
23.
24.
25.
26.
27.
28.
29.
30.
31.
32.
33.
34.
35.
36.
37.
38.
39.
40.
41.
42.
43.
44.
45.
46.
47.
48.
49.
50.
51.
52.
53.
54.
55.
56.
57.
58.
59.
60.
61. Power Only – Use with Stage 3 control for manual/intermittent chime triggering
62. Power Only – Use with Stage 3 control for manual/intermittent chime triggering
63. Power Only – Use with Stage 3 control for manual/intermittent horn triggering
64. Reserved for future use
TONE
TYPE
970Hz (BS5839-1:2002)
800Hz/970Hz @ 2Hz (BS5839-1:2002)
800Hz – 970Hz @ 1Hz (BS5839-1:2002)
970Hz 1s OFF/1s ON (Apollo Fire Systems Alert Tone, BS5839-1:2002)
970Hz, 0.5s/ 630Hz, 0.5s (Apollo Fire Systems Evacuate Tone, BS5839-
1:2002)
554Hz, 0.1s/ 440Hz, 0.4s (France – AFNOR NF S 32 001 )
500 – 1200Hz, 3.5s/ 0.5s OFF (Netherlands – NEN 2575:2000)
420Hz 0.625s ON/0.625s OFF (Australia AS1670 Alert tone)
500 – 1200Hz, 0.5s/ 0.5s OFF x 3/1.5s OFF (Australia AS1670 Evacuation
tone)
550Hz/440Hz @ 0.5Hz
970Hz, 0.5s ON/0.5s OFF x 3/ 1.5s OFF (ISO 8201 Low tone)
2850Hz, 0.5s ON/0.5s OFF x 3/1.5s OFF (ISO 8201 High tone)
1200Hz – 500Hz @ 1Hz (DIN 33 404)
400Hz
550Hz, 0.7s/1000Hz, 0.33s
1500Hz – 2700Hz @ 3Hz (Vandal Alarm)
Simulated Bell
2130Hz
660Hz
660Hz 1.8s ON/1.8s OFF
660Hz 0.15s ON/0.15s OFF
510Hz, 0.25s/ 610Hz, 0.25s
800/1000Hz 0.5s each (1Hz)
250Hz – 1200Hz @ 12Hz
500Hz – 1200Hz @ 0.33Hz.
2400Hz – 2900Hz @ 9Hz
2400Hz – 2900Hz @ 3Hz
800Hz – 970Hz @ 100Hz
800Hz – 970Hz @ 9Hz
800Hz – 970Hz @ 3Hz
800Hz, 0.25s ON/1s OFF
500Hz – 1200Hz, 3.75s/0.25s OFF (AS2220)
340Hz
1000Hz
1400Hz – 1600Hz, 1s/1600Hz – 1400Hz, 0.5s (NF 48-265)
660Hz 6.5s ON/13s OFF
1000Hz/2000Hz, 1s each
720Hz, 0.7s ON/0.3s OFF
970Hz, 0.25s ON/OFF
2800Hz, 1s ON/OFF
2800Hz 0.25s ON/OFF
2400/2900 @ 2Hz
Chime, 554Hz/440Hz Single shot ‘ding dong’
Chime, 554Hz/440Hz Repeating ‘ding dong’
Chime, 970Hz/800Hz Single shot ‘ding dong’
Chime, 970Hz/800Hz Repeating ‘ding dong’
Hooter, Repeating
Gentle alarm - Tone 2, rises slowly to full volume over 30s
Time-Out Alarm – As Tone 2, cuts off after 10 mins
Time-Out Alarm – As Tone 2, cuts off after 2 mins
750Hz 0.33s ON/0.51s OFF
750Hz 0.51s ON/0.33s OFF
550Hz, 0.33s/1000Hz, 0.7s
600Hz – 900Hz/ 0.9s
660Hz – 680Hz/ 0.9s
670Hz – 725Hz/ 0.9s
920Hz – 750Hz/ 0.9s
700Hz - 900Hz, 0.3s/0.6s OFF
900Hz - 760Hz, 0.6s/0.3s OFF
750Hz
TONE DESCRIPTION/ APPLICATION
DIP SWITCH
(S1/S2)
1_2_3_4_5_6
O-O-O-O-O-O
O-O-O-O-O-I
O-O-O-O-I-O
O-O-O-O-I-I
O-O-O-I-O-O
O-O-O-I-O-I
O-O-O-I-I-O
O-O-O-I-I-I
O-O-I-O-O-O
O-O-I-O-O-I
O-O-I-O-I-O
O-O-I-O-I-I
O-O-I-I-O-O
O-O-I-I-O-I
O-O-I-I-I-O
O-O-I-I-I-I
O-I-O-O-O-O
O-I-O-O-O-I
O-I-O-O-I-O
O-I-O-O-I-I
O-I-O-I-O-O
O-I-O-I-O-I
O-I-O-I-I-O
O-I-O-I-I-I
O-I-I-O-O-O
O-I-I-O-O-I
O-I-I-O-I-O
O-I-I-O-I-I
O-I-I-I-O-O
O-I-I-I-O-I
O-I-I-I-I-O
O-I-I-I-I-I
I-O-O-O-O-O
I-O-O-O-O-I
I-O-O-O-I-O
I-O-O-O-I-I
I-O-O-I-O-O
I-O-O-I-O-I
I-O-O-I-I-O
I-O-O-I-I-I
I-O-I-O-O-O
I-O-I-O-O-I
I-O-I-O-I-O
I-O-I-O-I-I
I-O-I-I-O-O
I-O-I-I-O-I
I-O-I-I-I-O
I-O-I-I-I-I
I-I-O-O-O-O
I-I-O-O-O-I
I-I-O-O-I-O
I-I-O-O-I-I
I-I-O-I-O-O
I-I-O-I-O-I
I-I-O-I-I-O
I-I-O-I-I-I
I-I-I-O-O-O
I-I-I-O-O-I
I-I-I-O-I-O
I-I-I-O-I-I
I-I-I-I-O-O
I-I-I-I-O-I
I-I-I-I-I-O
I-I-I-I-I-I
Klaxon Signals Ltd Wrigley St., Oldham, OL4 1HW
Telephone: Sales - 0161 287 5555 Technical Support - 0161 287 4029
Fax: 0161 287 5511
E-Mail: sales@klaxonsignals.com Web:www.klaxonsignals.com
3rd
STAGE
TONE
18
1
1
1
1
1
1
1
1
19
1
1
1
18
1
1
1
1
10
19
19
1
1
1
1
1
1
1
1
1
1
1
1
18
1
19
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
18
43
43
47
PEAK SOUND
LEVEL
(dBA @ 1m)
110
110
110
110
110
107
110
105
110
107
110
112
110
105
111
116
112
113
109
108
107
107
111
105
110
116
116
110
110
110
108
110
106
111
110
108
113
106
110
113
113
115
104
107
106
106
107
109 44
109 44
109 44
106
107
111
109
105
107
110
109
110
107
SOUNDER
CURRENT
(mA AVG)
45
44
43
25
39
24
28
9
13
26
19
16
34
21
33
46
26
34
31
16
17
28
44
24
31
45
45
42
43
43
10
29
18
47
44
31
41
26
25
22
21
43
15
15
36
36
13
12
25
41
37
33
33
41
15
28
39
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