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external controller - An external controller can be either dry contacts or any device that can be used to control the
matrix via the serial port.
input/output (I/O) configuration - The input/output configuration is the status of all the input and output signals in
the matrix (or enclosure, if so specified) at a given time. For example the status of an input signal would be
the output signal to which it was routed and the status of an output signal would be the input signal it was
receiving.
input/output board - A circuit board that receives video, audio or data signals from outside sources and transmits the
signals to outside output devices.
level - The 1YDM uses the term level to refer to an I/O board or a group of I/O boards.
local X/Y control panel - The panel on the front of an enclosure that has buttons and a screen for viewing messages
about the distribution matrix. Almost all distribution matrices will have at least one enclosure with a con-
trol panel.
inputs and outputs - inputs and outputs are the physical connector locations on the rear of an enclosure.
master enclosure - An enclosure that has its EPLD chip set to 01. This setting, which is done at the factory, identi-
fies this enclosure as the master. Only one enclosure per matrix can be the master enclosure.
module - Also known as a software module. A module is a chunk of software code that allows the matrix to accom-
plish specific tasks.
input/output configuration - The status of all the input and output signals in the matrix at a given time. For example,
the status of an input signal is the output signal to which it is routed and the status of an output signal is the
input signal that it receives.
Preset key - The Preset key is used to store the I/O configuration of the matrix. Using the Preset key, up to 64 dif-
ferent I/O configurations can be saved. The Preset key is also used to restore the I/O configurations. The
entire matrix can be reconfigured at any time, exactly as it was saved, by recalling an I/O configuration.
RGBS - A four input signal video signal, R = Red, G = Green, B = Blue and S = sync. This signal requires four lit-
eral inputs to relay it to an output device.
RGsB - Three component video signal, R = Red, Gs = Green with sync, B = Blue. This signal requires three literal
inputs to relay it to an output device.
configuration word - The configuration word is a hexadecimal number that tells the matrix how to: set the BAUD
rate, choose the number of SBCs to poll, and whether or not to echo serial commands on the control panel.
serial filter - When turned on, the serial filter changes hexadecimal packets of information, traveling from the CPU
of the matrix to an external controller, into more readable ASCII characters.
single bus controllers (SBC) - SBCs are remote controller devices used to control the input to a specified output de-
vice.