To select a scene press one of the buttons identified
by a number or engraved legend.
To turn light off press the button marked 'O'.
To raise the level of a scene press the raise button.
To lower the level of a scene press the lower button.
Scene programming The raise and lower button have a dual
function: when pressed together the control panel goes into programming
mode. This enables the user to program scenes from the control
panel and avoids accidental or unauthorised re-programming
The system All of the control panels connect to
the dimmer units and other devices via the network. A CAT5 cable
connects all the devices together to enable them to communicate
with one another. The system could consist of a simple four channel
dimmer unit and one control panel, or a maximum of 48 channels
of dimming for example in a 5-star hotel restaurant. When a button
is pressed, the control panel sends a broadcast message across
the network, and those devices to which the message is addressed
will respond accordingly. This is carried out with an extremely
high level of reliability and security – as it is a distributed
network, where each device stores its own data, no one device can
cripple the system.
Constructing a lighting
control system A lighting control system is constructed
from a number of component parts:
• Dimmer Units, for power output, colour
and movement of lighting sources
• Control Panels for recalling pre-programmed
lighting scenes by button
All these devices are connected together by the
LightSet network. This data connection network enables the devices
to communicate with one another in an intelligent manner. The
network is based on the CAN network developed by Bosch GMbH for
the automative industry, and as it was developed to work in highly
hostile environments with excessive noise, vibration and extreme
temperatures, it is intrinsically stable and reliable. All of
the devices on the LightSet network connect together with a standard
low cost CAT5 FTP cable. It is possible to have up to 100 devices
on a single network segment, which may be up to 1000 metres in
length.
