Lighting Concepts 209
NEO Lighting Control Console
and Accessories", was approved by ANSI in November 2004. This current standard is also known as "E1.11, USITT
DMX512-A", or just "DMX512-A", and is maintained by ESTA.
DMX512 is unidirectional and does not include automatic error checking and correction, so it is not safe to use for
applications involving life safety, such as controlling pyrotechnics or laser lighting display where audience or
performer safety is involved.
RDM
Remote Device Management or RDM is a protocol enhancement to USITT DMX512 that allows bi-directional
communication between a lighting controller and attached RDM compliant devices over a standard DMX line. This
protocol will allow configuration, status monitoring, and management of these devices in such a way that does not
disturb the normal operation of standard DMX devices that do not recognize the RDM protocol.
The standard was developed by the ESTA Technical Standards and is officially known as "ANSI/ESTA E1.20,
Entertainment Technology - Remote Device Management over USITT DMX512"
Dimmers
In the simplest terms, a dimmer is a physical apparatus used for controlling the intensity of a conventional light.
A dimmer can be fully on, fully off, or somewhere in-between. The setting of a dimmer is referred to as the DMX
value. DMX values range from zero to 255. A value of DMX 0 means the light is off, and DMX 255 means the light
is fully on. By adjusting the DMX value up and down, the intensity of the light increases and decreases. By default
the NEO console will control this via percentage values. So 0% will be off and 100% will be fully on.
Basic dimmers are in different formats. A permanent installation may have a full rack of 96 dimmers. This is known
as a Dimmer Rack. They have 48 dimmer modules with 2 dimmers per module. A standard dimmer module will have
a 2400w capacity. This is known as a 2.4k dimmer module.
There are also smaller collections of dimmer units known as Dimmer Packs, usually made up of 4 to 24 dimmers per
pack.
Strand Lighting C21 Dimming Rack
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