Da se ne zezamo:
UFSx RJ-45
1 - Vpp
2 - GND
3 - M-Bus
4 - Tx
5 - Rx
6 - IBI
7 - P3v - Napajanje (3 volt)
8 - P5v - Napajanje (5 volt)
k750i pinout:
1 - Vpp to k750 pin 8(vppflash)
2 - GND to k750 pin 9(gnd)
3 - M-Bus to k750 pin 6(dtms)
4 - Tx to k750 pin 11(cfms) treba biti pin 10
5 - Rx to k750 pin 10(ctms) treba biti pin 11
6 - IBI to k750 pin 5(dfms)
7 - P3v - Napajanje (3 volt)
8 - P5v - Napajanje (5 volt) to k750 pin 12(ign)
Znaci problem je u 10 i 11
Pozdrav!

Bolje supalj ostati nego da te drugi pune.