I have a Screen Innovations Screen backlit LED Screen. I am trying to figure out how to convert the codes I received from them for IR to be used in my RTI processor. I am new to this so I am a bit lost. Lets take one code for example: Power Off is listed as 20 13 40 BF and IR remote control protocol is NEC:6121 Can someone please help me with the process to convert this to a pronto format so I can use it in my RTI processor?

FYI, I found this site, [Link: irdb.tk] but I don't know how to combine the data received from SI to convert it.

Thank you so much.

I'm not sure what "NEC:1621" means, but naively converting your Power Off signal gives NEC1 device 32.19  function 64.  We obtain this from the hexadecimal format 20 13 40 BF, where we can ignore the BF, which is a check sum for 40.  BF+40 = FF).  On the convert tab, you can enter NEC1 0x20 0x13 0x40 and get the same conversion, and that may be easier.
0000 006C 0022 0002 015B 00AD 0016 0016 0016 0016 0016 0016 0016 0016 0016 0016 0016 0041 0016 0016 0016 0016 0016 0041 0016 0041 0016 0016 0016 0016 0016 0041 0016 0016 0016 0016 0016 0016 0016 0016 0016 0016 0016 0016 0016 0016 0016 0016 0016 0016 0016 0041 0016 0016 0016 0041 0016 0041 0016 0041 0016 0041 0016 0041 0016 0041 0016 0016 0016 0041 0016 06A4 015B 0057 0016 0E6C

Thank you. I will test this as soon as I get the screen installed and reply with the results.