High End Systems High End LCD Controller for Studio Color User Manual page 202

Each DMX 512 link can have up to 32 devices or span 500 ft
(153 m). A serial data distributor must be used to extend any
link beyond those limits.
See also "DMX 512" and "Serial Data Distributor".
Look
See "Page".
Loop
A sequence or series of programmed pages that repeats
continuously until you stop it.
Luminaire
See "Fixture".
Macro
A series of up to 256 keystrokes you can assign to one of the
User keys for one-touch playback. For more information, see
Chapter 6.
Master
The master controller determines the playback of all
controllers and fixtures connected to it. Using master/slave
controllers is one way of expanding your system beyond
eight independently-functioning fixtures.
See also "Slave".
G-6 Glossary Studio Color LCD Controller