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The 4K-WALL may also be controlled via RS-232 commands. This feature requires an RS-232 card
installed on your computer or a USB to RS-232 adapter. Below are instructions on how to properly
create an RS-232 connection between a PC and the 4K-WALL.
Establish a connection to 4K-WALL:
1. Connect a straight-through male-to-female RS-232 cable to the RS-232 connector on the PC.
2. Connect the other end of the cable to the RS-232 port of the 4K-WALL.
3. Power on the device.
If you are using a USB to COM port adapter and need to identify the COM port used do the follow-
ing:
Click on the start button.
Click on the Control Panel.
Click on Device Manager.
Click on the arrow next to Ports (COM & LPT).
The name of the adapter should appear and its COM port number.
Setting up the Terminal Application:
Run the terminal client of your choice such as HyperTerminal or PuTTY.
Select the correct COM port on the PC. Use the following connection settings:
115200, N, 8, 1, no
flow control.
Once the connection is established type
“?”
and hit enter. The 4K-WALL should respond with a ver-
sion number and a list of commands. See Figure 11-1 for sample PuTTY screens.
USING RS-232 CONTROL
