||Pin||Signal||
||1||48V||
||2||Power GND||
||3||User line 1 or 24V||
||4||User line 2 or 24V return||
||5||RS232TX/CANH||
||6||RS232RX/CANL||
||7||User line 3||
||8||User line 4 or 5V||
||9||Earth ground||
||10||No Connection||