Extron Electronics Matrix 200 - Manual (Page 97)

Extron • Matrix 200 • User’s Manual
Appendix B • Programming Guide
CMD1 (31h) — Report ID
The Host asks for the configuration of the Matrix. This includes information such
as: what type of switching modules are installed in which planes, etc.
Format: CMD1, SCMD, Cks1, Cks2, EOT
Where: SCMD = 80h Reserved
81h Reserved
82h Report technology (See example)
83h Reserved
Example: SCMD = 82h Report Technology (See example at bottom of page.)
Response: CMD1, 82h, Erc, *{(BdAd, #Inp, #Out, Tech, CR), ...} Cks1, Cks2,
EOT
Possible Ercs: D3 — No I/O boards detected.
*Note: The string of data bytes in parentheses is shown for one switcher or plane; there will be an
additional string for each additional plane in the Matrix 200. They will be
transmitted in the ascending order of their board addresses (plane #1 first).
Where: BdAd = board (or plane) address (plane #1 = 80h, plane #2 = 81h, etc.)
#Inp = number of inputs on this plane
#Out = number of outputs on this plane
Tech = See table.
The Tech byte encodes the basic design characteristics for which the board in
that position was designed.
Tech Designed For Features
80h Hi Resolution RGB 250 MHz DC-coupled, no clamping
81h Sync TTL level
82h Low Resolution Video 30 MHz (Composite video or S-Video)
83h Medium-Res RGB 175 MHz
84h Audio Balanced, with volume control
FFh Error Mixed technologies (as in composed matrices)
An example response to a Report Technology command for a Matrix with 8 x 8
RGBS, 4 x 4 Composite Video and 8 x 8 Audio could be:
31, 82, 80, (CMD1, SCMD, Erc)
80, 88, 88, 80, 0D, 81, 88, 88, 80, 0D, 82, 88, 88, 80, 0D, (Red, Green, Blue)
83, 88, 88, 81, 0D, 84, 84, 84, 82, 0D, 85, 88, 88, 84, 0D, (Sync, C-video, Audio)
Cks1, Cks2, 04 (Checksum and End of Transmission)
CMD2 (32h) — Turn Power On
The Host tells the Matrix to turn power on.
Format: CMD2, Cks1, Cks2, EOT
Example: 32h, 80h, B2h, 04h
Response: CMD2, Erc, Cks1, Cks2, EOT
B-9