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1. Introduction
The Symphoni (SY) LX Base is a high specification
VAD (Visual Alarm Devices) suitable for wall
mounting in accordance with EN54-23 and is part of
the LX range. The base is compatible with a number
of sounders from the Symphoni range, and is used in
place of the standard or weatherproof bases. They
are suitable for visual alarm signalling within open
areas or corridors and passages.
The device has been specifically designed for use
within fire alarm systems, to meet the requirements
of the CPR (Construction Products Regulation). It
produces a flash of light at a predetermined interval
when connected to a suitable power supply. When
connected to a common power supply, devices will
self-synchronise their flashing for a defined period of
time after starting (see installation guide for more
detail).
.
2. General functional description
The device is normally in an off state, with no voltage
applied to the power terminals. In this state, the unit
has no power and so does not operate.
When the device is required to operate, a voltage
between 9 - 60VDC is applied to the appropriate
power terminals. This provides power to the circuit
via a polarity protection / system monitoring diode, &
an RC network which provides supply smoothing and
noise immunity protection. Further protection is also
provided against voltage spikes on the supply. At the
heart of the device is a microprocessor which
derives its power from a switched mode voltage
regulator circuit.
The light flash is achieved by the use of an LED
(Light Emitting Diode). A drive circuit generates the
necessary voltage & current required to drive the
LED. Control of the flash is achieved via the
microcontroller,
which
firmware for its operation.
3. Features
•
Approved to EN54-23
•
Minimum current consumption 15mA
•
0.5 or 1Hz
•
LED technology
•
High sound output
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runs
the
programmed
/
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Benefits
3.1.
•
Long service life and ultra-low current
consumption
•
Coverage switch from 7.5m to 2.5m,
reducing power by up to 50%
•
Locking bases prevents easy removal of
device
•
Retrofit
4.
Compliance
•
Complies and approved to EN54-23
•
Product is CE marked under the appropriate
European Regulations and Directives
•
VdS certified
•
Afnor certified
Variants Available
5.
The Symphoni LX VAD base is approved in red and
white, with the LX base available in red and white
colours.
Symphoni LX Red Symphoni LX White
LX base
Red flash (RF)
White flash (WF)
See full fire catalogue for more details
6.
General safety guidance
•
Do not work on live circuits
•
Disconnect power supply before operating
•
Follow
local
relevant
•
Ensure that the base is secured to the
mounting surface using the most appropriate
fixings. Plasterboard and hollow walls will
require special anchor fixings
Installation must be in accordance with
relevant national wiring regulations or codes
for the intended application and voltages
employed.
The following pages will give you some guidance
on how to approach the system design &
installation. However, please note that this is for
guidance ONLY. You will need to undertake your
Page 3 of 6
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•
•
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wiring
regulations
where
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