Has anyone cracked the code on an URC MX-5000 for a JVC projector using IP?  I can get a PJ_OK test response but can't get a command to work.  I am not sure where/how to put the PJREQ for a handshake.  I have the Denon working, DirecTV working IP, still need to get the Sony BD, projector and iTach for screen going.  But for now, if I could get the code cracked on 1 command for the projector, I am sure I can do the rest myself.  Power on is:

21 89 01 50 57 30 0A
but to communicate you need to initiate connection, receive a PJ_OK (which I do receive so IP and port is correct) and respond in 5 seconds with PJREQ.  Somehow that is where I just can't get it coded right.
The projector is a 2012 D-ILA RS45U