Comprehensive CSW-HD1616 - Manual (Page 9)

HDMI Matrix Switcher
6
automatically shake hand, or manual exchanged, and factory restore.
6.1 EDID automatically shake hand
CSW-HD1616 is built in the EDID data, which can communicate with the displayers and video source
automatically. When the displayers or video sources are connected to the MHD matrix switcher, they
will share the EDID/DDC information with the matrix switcher.
The MHD EDID database includes most popular displaying data, but not all the displaying data
because of the capability and firmware limitation. So, we can manually refresh the EDID data to update
the EDID data base.
6.2 EDID management of MHD matrix
The RS232 commands for EDID management of MHD matrix models include: “EDIDMAuto.”
”EDIDMInit.” and ”EDIDM[X]B[Y].”, (Please notice the text-transform, and the dot in behind.)
6.2.1 Erase and Refresh the EDID data
The EDID refresh ports have the priority grade when the matrix is executing the EDIDMAuto function,
ranging from output 1 to output 8 in priority order. It means the output 1 is the most prior to exchange
the EDID data, and then the output 2 is the second prior to exchange the EDID data. And, the output 8
is the last prior.
When the user carries the EDID erase/refresh function, the MHD will detect the output priority and
exchange the EDID data with the available most prior output port.
6.2.2 Auto EDID management
The way for auto EDID management is by sending RS232 commands “EDIDMAuto.”. When the
“EDIDMAuto.” is sent, the MHD matrix switcher will copy the EDID data from the most prior output port.
It means the MHD will erase the old EDID data, and fully copy the EDID data from the displayer which is
connected to the most prior output port. The feedback command is “EDIDMAuto”.