Hall Research UHBX-8X - Manual (Page 2)

In the above picture the bytes are 88, 41, B9, etc.
Step 2: Using the IS9 Command to send IR signal from the learned timing
 Command: IS9 Stands for IR Send Detailed Timing (HR Protocol)
This command should be followed by a string of hex bytes to be sent out. The user has 1-5 seconds to enter any
hex bytes from 0x00 to 0xFF. The maximum number of bytes being sent out can’t exceed 160 .
The terminal characters indicating the end of string are 0x17 followed by 0x0D. If the user has more than 160
bytes to send, he/she has to use multiple commands.
Response: OK
Example: Using Com Port Data Emulator
You can use whatever terminal emulator program you are familiar with to send out the command and the hex bytes.
The program you use must be able to send ASCII as well as Hex bytes. In this example we are using a free program
called Com Port Data Emulator. It requires # before hex bytes. So to send the power command using this program we
have to send IS9 followed by carriage return and then send the learned bytes like #88#41#B9 … and make sure to
remember to append #17#0D to indicate the end of the command.