Comprehensive CSW-HD880 - Manual (Page 9)

HDMI Matrix Switcher
9
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.
Priority of CSW-HD880
6.2.2 Auto EDID management
The only 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”.
6.2.3 EDID restore to factory default
There are two ways to do restore EDID management: by RS232 command or by buttons.
EDID management by RS232 command
When we send the “EDIDMInit.” to the MHD matrix switcher, it will recover the factory default EDID data.
The feedback command is “EDIDMInit”.
EDID management by buttons
Press the button “INITIAL” on the front panel, the MHD matrix switcher will restore the EDID to factory
default.
6.2.4 Manually EDID switching
There are two ways to do manually EDID management: by RS232 command or by buttons.
EDID management by RS232 command
When we send the RS232 command “EDIDM[X]B[Y].”. The matrix will copy the EDID data of output[X]
to the input[Y]. The feedback command is “EDIDM: [X]To[Y]”.
EDID management by buttons
Press the button “EXTERNAL” then input button [X], and then press output button [Y]. The matrix will
copy the EDID data of the output[X] to the input[Y].
NOTICE: If the output[X] does not connect to an active display, the EDID management will take no
action.
6.3.5 RS232 feedback:
When a RS232 command is correctly sent, all the connected displayers will be blank for 2~3 seconds
and recover again. And, the MHD matrix switcher will send out the RS232 feedback command.