NX-300TERMINAL FUNCTION63Pin No. Name Device I/O Conection Function16 DTI ANI board I Data Out Data signal inputVGS-1 - - -17 OPT8 ANI board I Tone Control Speaker mute signal inputVGS-1 - - -18 OPT11 ANI board O Man-Down Man-Down outputVGS-1 - - -19 OPT7 ANI board I MIC Mute MIC mute signal inputVGS-1 - - -20 OPT2 ANI board I Aux Output Emergency signal inputVGS-1 - - -21 TXO ANI board - - -VGS-1 - - -22 RXEO ANI board - - -VGS-1 - - -23 RXEI ANI board - - -VGS-1 - - -24 TXI ANI board - - -VGS-1 - - -25 OPT6 ANI board - - -VGS-1 - - -26 POW ANI board O A+ Switched B outputVGS-1 - - Note: POW and 5V can not be used simultaneously.