TERMINAL FUNCTIONNX-80067CN595 26-pin connector specificationPin No. Pin Name Device I/O Connection Description/Function[COR]Conv/LTRL: Not activity receivingH: Activity receiving[TOR]1 OPT1 ANI board O Aux Input Conv/LTRL: Not activity receivingH: Activity receiving[LOK]ConvL: TX CompleteVGS-1 I BUSY BUSY indication2 OPT3 ANI board I KEY TX requirement inputVGS-1 I PLAY PLAY indication3 26P_RD ANI board - - -VGS-1 I SO Serial data input4 26P_TD ANI board - - -VGS-1 O SI Serial data output5 NC - - - -6 OPT4 ANI board O PTT PTT signal outputVGS-1 O EN Enable signal output7 OPT10 ANI board - - -(USEL) VGS-1 O USEL UART speed select signal output8 OPT5 ANI board O Emergency Emergency signal outputVGS-1 O RST Reset signal output9 DGND ANI board - A- GNDVGS-1 - DGND DGND10 AGND ANI board - A- GNDVGS-1 - AGND AGND11 AI ANI board - - -VGS-1 I AO VGS Audio signal input12 AO ANI board - - -VGS-1 O AI VGS Audio signal output13 AGND ANI board - A- GNDVGS-1 - AGND AGND14 5V ANI board - - Note: POW and 5V can not be used simultaneously.VGS-1 O 5C 5V power supply15 OPT9 ANI board I Sidetone Side tone signal input(STON) VGS-1 - - -16 DTI ANI board I Data out Data signal inputVGS-1 - - -17 OPT8 ANI board I Tone Control Speaker mute signal inputVGS-1 - - -