AMX Precis Installation & Operation Manual page 39

Glossary
D
Distribution Matrix (DM)
The hardware and software necessary to route any one of multiple source
signals to one or more destination devices. Multiple sources (inputs)
cannot be routed to a single destination (output). Distribution matrices
are also known as routing switchers, routing matrices, and switching
matrices.
E
ESD (Electrostatic Discharge)
An electrical charge (such as static electricity) that can damage sensitive
components inside an enclosure. ESD damage can occur if you are not
properly grounded or not handling components correctly (see the ESD
Warning page at the front of this supplement for more details about
ESD).
G
grouping
The process of defining an ordered set of literals to form a logical set.
This process includes defining levels and breakaways.
L
level
A subset of a logical set formed to facilitate the switching of a portion of
the logical set. For example, if a logical set is defined by grouping literal
inputs and outputs for video components R, G, B, H, V and stereo audio
components Al, Ar (audio left and right), then the video components
could be defined as Level 1 and the audio components as Level 2 to
switch them separately if desired. Moreover, additional levels can be
defined and each component can be included in multiple definitions. In
the example above, Al (audio left) could be defined as Level 3 and Ar
(audio right) as Level 4. This would allow for separate breakaway of the
two audio components. If the level is not defined in the switch command,
it defaults to Level 0 (or the lowest level available), which switches the
entire logical set.
2 Precis Remote X/Y Control Panel