Multi Line indoor displays

For the following signs, these instructions show how to change the serial address, serial communication
settings (data bits, parity, and stop bits), and display parameters (display test and memory clear); how to mount;
and how to connect a computer:
Changing the serial address
The address of an ALPHAVISION full matrix or character matrix sign is set by changing a DIP switch that
is accessed through the back of the sign. The default serial address is 0.