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Introduction:
The digital audio store unit uses MPEG-1 Audio Layer 3, more commonly
referred to as MP3, digital audio encoding/decoding format to store and play
audio information. It uses a USB memory stick as the physical storage media
and is non-volatile, which means it does not require any backup supply or
battery. This removable memory stick must be pre-loaded with MP3 files and
then plugged into the socket located on the circuit board. The unit comes
supplied with a memory stick containing sample messages, chimes, alarms
and background music.
These audio files are organised into four distinct groups; the first three can
each contain up to five files, but the fourth group (background music) has
no practical limit to the amount of files it can store. These groups have been given
descriptive names so as to help organise and ease access to the data. The files and
their groups have a hierarchical priority structure and an adjustable interval timer is
available on the second file in group 1.
The files in the first three groups are triggered by means of a simple contact closure
applied to the relevant screw terminals on the main circuit board. Files in the fourth
group are played in a random manner automatically when the background music
facility is activated.
The quality of the audio output is dependent on the bit rate of the audio files used; low
bit rates are suitable for speech, whereas higher bit rates are suitable for high quality
music (commercial CD quality).
Audio output is at line level either via stereo phono connectors or a balanced mono
signal by means of screw terminals. A stereo 3.5mm headphone jack socket is
provided to allow monitoring of the unit's output.
The unit is housed in a durable metal case and is powered by a 12v DC 'plug top'
power supply (supplied).
GROUP 1
GROUP 2
5 x messages
5 x tones
GROUP 3
GROUP 4
5 x chimes
Unlimited
(Background Music)
Files
Important Points & Warnings:
Important: Please read first!
Before installing and using this equipment please read all the information in these
instructions carefully as the manufacturer will not assume any responsibility for
any damage to the unit, or consequential loss, arising from its incorrect installation
or use.
Please also note the following points:
• Only use the supplied power supply with the unit, if you want to use a different
power source please contact our Technical Department for guidance.
• The installation and all connections must be carried out by a competent installer.
• All external wiring to this unit must follow good wiring practice and meet any wiring
standards that apply to the installation.
• This equipment is designed for internal use only, do not expose to rain or
moisture.
• The equipment must only be operated within the environmental temperature range
detailed in the Technical Specifications section.
• Do not use solvents or abrasive cleaners on the metal case of the unit as they
may well damage its finish.
• Failure to observe any of the above points could invalidate the equipment's
warranty.
If you are unsure about any of the above or have any related questions, please
contact our Technical Department as follows:
CIE-Group Technical Support
T: +44 (0)115 977 0075
E: service@cie-ltd.co.uk
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