User Manual
BL-PRO-MIX- 8*8/18*18/32*32 
Figure 6.3.1 
a. Control Method 1: Serial Port RS232 control 
Step 1: Connect the computer’s RS232 port to the matrix’s RS232 port with a Straight 
(i.e. Direct / Crossover) RS232 cable. 
Step 2: Determine the COM port number of the matrix as it appears to the computer. 
To find this information on Windows, open up Device Manager and view the Ports 
(COM & LPT) list. 
Step 3: Click the “SET” tab in the matrix software application. In the “CONNECT” 
panel, make sure the COM option is ticked, and then select the appropriate COM port 
– for example, COM8. 










