8
HDMI 8x8 Matrix Switcher User Guide
Communication protocol and command
codes
Communication protocol
: RS232 communication protocol
Baud rate: 9600 Data bit: 8 Stop bit: 1 Parity bit: none
Table 3: RS232 command types and codes
Command
Type
Command Code
Function
System
Command
/*Type;
Returns the switch model information.
/%Lock;
Locks the front panel buttons on the matrix
switch.
/%Unlock;
Unlocks the front panel buttons on the matrix
switch.
/^Version;
Returns the firmware version installed.
/:MessageOff;
Turns off the feedback command from the COM
port. It displays “switcher OK”.
/:MessageOn;
Turns on the feedback command from the com
port.
EDIDMInit.
Restores to the factory default EDID data.
EDIDM[X]B[Y].
Manual EDID switching. Copies the EDID data
of output[X] to the input[Y].
Operation
Command
[x1]All.
Transfers signals from the input channel [x1] to
all output channels
All#.
Transfers all input signals to the corresponding
output channels respectively.
All$.
Switches off all the output channels.
[x1]#.
Transfers signals from the input channel [x1] to
the output channel [x1].
[x1]$.
Switches off the output channel [x1].
[x1] B[x2].
Transfers the signal from the input channel [x1]
to the output channel [x2].
[x1] B[x2],[x3],[x
4].
Transfers the signal from the input channel [x1]
to the output channels [x2], [x3] and [x4].
Status.
Returns which input channels are sent to which
output channels one by one.
