RJ45 connector pinout (RS485, Analogue / Digital Audio, +24V DC):
Pin 1 White-Orange Not connected
Pin 2 Orange Not connected
Pin 3 White-Green +24V DC
Pin 4 Blue RS485 A
Pin 5 White-Blue RS485 B
Pin 6 Green GND
Pin 7 White-Brown AUDIO TX A / S+
Pin 8 Brown AUDIO TX B / S-