9
UHBX-R-XT
4.5 Using the Serial Port
Each UHBX-R-XT device provides an RS-232 port which is primarily there
for controlling a display (such as on and off functions). The pinout of the RS-
232 connector is as follows?
DB9-M Pin
Term
Direction
2
RX
Input
3
TX
Output
5
GND
To best understand how this RS-232 port operates, refer to the image below.
RS-232 Functional Block Diagram
As shown in the block diagram above, each box has internal EEPROM for
programming and holding upto 6 individual commands. Also each box is
shipped with the same address (default address = 1), but the box address can
be changed.
If you will be using the internally stored commands or if you want to give each
box a unique address, a mini-USB port is provided (USB cable is also
included). Please download the Windows® GUI software from the product’s
webpage and install it on your PC. Instructions for the GUI is on the website.
There are 3 ways RS-232 Commands can be sent out on the UHBX-R-XT.
Using HDBaseT to construct and send a command
This method
does not
rely on the internally stored commands. The user can
address a particular box and connect to it. Then it can specify the baud rate for
the RS-232 port on the receiver, define the command, and send it out. When
only one box is being addressed, any RS-232 response received from the TV
