Klaxon Nexus 110 AC Sounder & Sounder-Beacon Installation Instructions

Introduction

This document provides installation instructions for the Klaxon Nexus 110 AC Sounder & Sounder-Beacon, a device designed for audible and visual signaling.

Installation

IMPORTANT:

The unit must be fitted with a fused spur incorporating an all-pole disconnection device with 3mm contact separation. Ensure the fuse, cable size, and gland type are rated sufficiently for the total load on the sounder circuit.
Isolate the unit from the electricity supply before removing the cover. Only suitably qualified personnel should access the unit for tone or volume adjustments. WARNING: no user-serviceable parts are contained within the unit.
Installation involves mounting the base unit first, then making external wiring connections. The head unit automatically connects when attached to the base.
The sounder head separates from the base by unlocking four 1/4-turn fasteners. A Philips No. 2 screwdriver, minimum 100mm long, is recommended.
Note that the head fits the base in only one orientation. If a beacon is fitted, ensure correct positioning of the base to align the beacon after the sounder is attached.

Wiring

Power: The sounder and beacon have separate power terminals, marked as follows:

Device	Common (Neutral)	110V	230V
Sounder	N	110V	230V
Beacon (Where fitted)	N	110V	230V

Wiring Diagram Description: The wiring diagram illustrates connections from a controller to two units. It shows input terminals labeled 'Beacon L', 'Sounder L', and 'Common N' for each unit, along with '2nd Stage' and '3rd Stage' inputs, indicating separate power and stage control capabilities.

Remote Tone Switching (If required): Connect control terminals externally as shown below:

Alarm Stage	Example Signal	Activation
Stage 1	'Alert'	No Connection (Default)
Stage 2	'Evacuate'	Link Terminal S2 to terminal
Stage 3	'All Clear'	Link Terminal S3 to terminal

Controls

Tone Selection: The first and second stage alarm tones are independently set using 6-way dipswitches S1 and S2. The third stage alarm tone is pre-set to complement the selected first stage tone. Refer to the Tone Selection Table for specific settings.

Volume Control: The sound output can be reduced by up to 20dBA by adjusting the potentiometer.

Technical Specifications

Supply Voltage Range: 110/230V 50/60Hz
Current: Sounder - 40mA max., Beacon (where fitted) - 70mA
Peak Sound Level: 103-115 dBA at 1m*
Number of Tones: 64
Frequency Range: 340 - 2900 Hz*
Volume Control: 20 dBA typical reduction
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.

Tone Selection Table

Tone	Tone Type	Tone Description / Application	Dip Switch (S1/S2)	3rd Stage Tone	Peak Sound Level (dBA@1m)
1	970Hz	970Hz (BS5839-1:2002)	0-0-0-0-0-0	18	110
2		800Hz/970Hz @ 2Hz (BS5839-1:2002)	0-0-0-0-0-1	1	110
3	MM	800Hz – 970Hz @ 1Hz (BS5839-1:2002)	0-0-0-0-1-0	1	110
4		970Hz 1s OFF/1s ON (Apollo Fire Systems Alert Tone, BS5839-1:2002)	0-0-0-0-1-1	1	110
5		970Hz, 0.5s/630Hz, 0.5s (Apollo Fire Systems Evacuate Tone, BS5839-1:2002)	0-0-0-1-0-0	1	110
6		554Hz, 0.1s/ 440Hz, 0.4s (France – AFNOR NF S 32 001)	0-0-0-1-0-1	1	107
7	ΛΛΛ	500-1200Hz, 3.5s/ 0.5s OFF (Netherlands – NEN 2575:2000) Dutch Slow Whoop	0-0-0-1-1-0	1	110
8		420Hz 0.625s ON/0.625s OFF (Australia AS1670 Alert tone)	0-0-0-1-1-1	1	105
9	ΛΛΛ	500 – 1200Hz, 0.5s/ 0.5s OFF x 3/1.5s OFF (Australia AS1670 Evacuation tone)	0-0-1-0-0-0	1	110
10		550Hz/440Hz @ 0.5Hz	0-0-1-0-0-1	19	107
11		970Hz, 0.5s ON/0.5s OFF x 3/ 1.5s OFF (ISO 8201 Low tone)	0-0-1-0-1-0	1	110
12		2850Hz, 0.5s ON/0.5s OFF x 3/1.5s OFF (ISO 8201 High tone)	0-0-1-0-1-1	1	112
13	N7	1200Hz – 500Hz @ 1Hz (DIN 33 404)	0-0-1-1-0-0	1	110
14		400Hz	0-0-1-1-0-1	18	105
15		550Hz, 0.7s/1000Hz, 0.33s	0-0-1-1-1-0	1	111
16	M	1500Hz – 2700Hz @ 3Hz (Vandal Alarm)	0-0-1-1-1-1	1	116
17		Simulated Bell	0-1-0-0-0-0	1	112
18		2130Hz	0-1-0-0-0-1	1	113
19		660Hz	0-1-0-0-1-0	10	109
20		660Hz 1.8s ON/1.8s OFF	0-1-0-0-1-1	19	108
21		660Hz 0.15s ON/0.15s OFF	0-1-0-1-0-0	19	107
22		510Hz, 0.25s/610Hz, 0.25s	0-1-0-1-0-1	1	107
23		800/1000Hz 0.5s each (1Hz)	0-1-0-1-1-0	1	111
24	M	250Hz – 1200Hz @ 12Hz	0-1-0-1-1-1	1	105
25		500Hz – 1200Hz @ 0.33Hz.	0-1-1-0-0-0	1	110
26	M	2400Hz – 2900Hz @ 9Hz	0-1-1-0-0-1	1	116
27	M	2400Hz – 2900Hz @ 3Hz	0-1-1-0-1-0	1	116
28	M	800Hz – 970Hz @ 100Hz	0-1-1-0-1-1	1	110
29	M	800Hz – 970Hz @ 9Hz	0-1-1-1-0-0	1	110
30	MM	800Hz – 970Hz @ 3Hz	0-1-1-1-0-1	1	110
31		800Hz, 0.25s ON/1s OFF	0-1-1-1-1-0	1	108
32	ΛΛΛ	500Hz – 1200Hz, 3.75s/0.25s OFF (AS2220)	0-1-1-1-1-1	1	110
33		340Hz	1-0-0-0-0-0	1	106
34		1000Hz	1-0-0-0-0-1	18	111
35		1400Hz-1600Hz, 1s/1600Hz – 1400Hz, 0.5s (NF 48-265)	1-0-0-0-1-0	1	110
36		660Hz 6.5s ON/13s OFF	1-0-0-0-1-1	19	108
37		1000Hz/2000Hz, 1s each	1-0-0-1-0-0	1	113
38		720Hz, 0.7s ON/0.3s OFF	1-0-0-1-0-1	1	106
39		970Hz, 0.25s ON/OFF	1-0-0-1-1-0	1	110
40		2800Hz, 1s ON/OFF	1-0-0-1-1-1	1	113
41		2800Hz 0.25s ON/OFF	1-0-1-0-0-0	1	113
42		2400/2900 @ 2Hz	1-0-1-0-0-1	1	115
43		Chime, 554Hz/440Hz Single shot 'ding dong'	1-0-1-0-1-0	1	104
44		Chime, 554Hz/440Hz Repeating 'ding dong'	1-0-1-0-1-1	1	107
45		Chime, 970Hz/800Hz Single shot 'ding dong'	1-0-1-1-0-0	1	106
46		Chime, 970Hz/800Hz Repeating 'ding dong'	1-0-1-1-0-1	1	106
47		Hooter, Repeating	1-0-1-1-1-0	1	107
48		Gentle alarm - Tone 2, rises slowly to full volume over 30s	1-0-1-1-1-1	1	109
49		Time-Out Alarm – As Tone 2, cuts off after 10 mins	1-1-0-0-0-0	1	109
50		Time-Out Alarm – As Tone 2, cuts off after 2 mins	1-1-0-0-0-1	1	109
51		750Hz 0.33s ON/0.51s OFF	1-1-0-0-1-0	1	106
52		750Hz 0.51s ON/0.33s OFF	1-1-0-0-1-1	1	107
53		550Hz, 0.33s/1000Hz, 0.7s	1-1-0-1-0-0	1	111
54		600Hz – 900Hz/ 0.9s	1-1-0-1-0-1	1	109
55		660Hz – 680Hz/ 0.9s	1-1-0-1-1-0	1	105
56		670Hz – 725Hz/ 0.9s	1-1-0-1-1-1	1	107
57		920Hz – 750Hz/ 0.9s	1-1-1-0-0-0	1	110
58		700Hz - 900Hz, 0.3s/0.6s OFF	1-1-1-0-0-1	1	109
59		900Hz - 760Hz, 0.6s/0.3s OFF	1-1-1-0-1-0	1	110
60		750Hz	1-1-1-0-1-1	18	107
61		Power Only - Use with Stage 3 control for manual/intermittent chime triggering	1-1-1-1-0-0	43	107
62		Power Only - Use with Stage 3 control for manual/intermittent chime triggering	1-1-1-1-0-1	43	107
63		Power Only - Use with Stage 3 control for manual/intermittent horn triggering	1-1-1-1-1-0	47	107
64		Reserved for future use	1-1-1-1-1-1	-	-

Manufacturer Information

Texecom Ltd (Incorporating Klaxon Signals)
St Crispin Way, Haslingden, BB4 4PW, UK
+44 1706 233879 | +44 1706 223450
sales@klaxonsignals.com | www.klaxonsignals.com

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