Burst Electronics VS8x8 User Manual
Page 11

Command Description 
Each command (unless otherwise stated) must 
be terminated by a carriage return (0Dh) (
All characters that are transmitted to the unit are 
echoed back to the hosting computer (except for 
the initial Wake command in mode 4). 
 
Sio (Set Input to Output) 
This command routes an input channel specified 
by “i” to an output channel specified by “o”. The 
“i” and “o” characters are single digit values from 
0 to 9 (0 and 9 being channel off). There are no 
spaces allowed. The command is case 
insensitive, but must be followed by a carriage 
return. The unit switches immediately after 
receiving the carriage return, using the same 
vertical sync detection scheme as previously 
described. Example: S35
channel 3 to output channel 5. 
 
R (Read) 
This command causes the VS8x8 to transmit the 
current settings of all 8 video outputs to the host 
computer. No carriage return required. 
 
L (Lock) 
When received, this command locks the current 
video settings to prevent inadvertent changes of 
the video settings. Once locked, the unit will then 
ignore any subsequent SET commands and will 
display an appropriate error message. The video 
setting can still be viewed using the “R” 
command. The unit will stay in the locked mode 
VS8x8 Crosspoint Video Switch
11
