1-26 (No.RA032)43 AFO+ O AF signal output plus44 AFO- O AF signal output minus45 MIC I MIC signal input46 ME - MIC ground47 R_SET2 I Radio setting signal 248 R_SET1 I Radio setting signal 149 R_SET0 I Radio setting signal 050 GND - GroundCN900 (to Sub (Display) unit CN2)1 SPO O Speaker output2 SPG - Speaker ground3 GND - Ground4 SB1 O Switched power supplyCN906 (to Main unit B/2 CN907)1 NC - No connection2~7 SB1 O Switched power supply8 AFO O RX filtered AF signal out9 DI I Data signal input10 50A O 5V output11 GND - Ground12 DEO O RX detected signal output13 MI2 I External MIC signal input14 ME - MIC ground15 GND - Ground16 RXD0 I Serial data input 017 AUXO2 O AUX output218 TXD0 O Serial data output 019 AUXO1 O AUX output120 AUXIO9 I/O AUX input/output 921 AUXIO5 I/O AUX input/output 522 AUXIO8 I/O AUX input/output 823 AUXIO4 I/O AUX input/output 424 TXD2 O Serial data output 225 AUXIO3 I/O AUX input/output 326 RXD2 I Serial data input 227 AUXIO2 I/O AUX input/output 228 AUXIO1 I/O AUX input/output 129 AUXIO7 I/O AUX input/output 730 AUXIO6 I/O AUX input/output 6CN907 (to Main unit A/2 CN906)1 AUXIO6 I/O AUX input/output 62 AUXIO7 I/O AUX input/output 73 AUXIO1 I/O AUX input/output 14 AUXIO2 I/O AUX input/output 25 RXD2 O Serial data output 26 AUXIO3 I/O AUX input/output 3Pin No. Name I/O Function7 TXD2 I Serial data input 28 AUXIO4 I/O AUX input/output 49 AUXIO8 I/O AUX input/output 810 AUXIO5 I/O AUX input/output 511 AUXIO9 I/O AUX input/output 912 AUXO1 I AUX input113 TXD0 I Serial data input 014 AUXO2 I AUX input215 RXD0 O Serial data output 016 GND - Ground17 ME - MIC ground18 MI2 O External MIC signal output19 DEO I RX detected signal input20 GND - Ground21 50A I 5V input22 DI O Data signal output23 AFO I RX filtered AF signal in24~29 SB1 I Switched power supply30 NC - No connectionCN9101 SB2 O Switched power supply2 SPI O Speaker output3 SPO I Speaker input4 PA O Control signal of Pubilc addressfunction5 HOR O Control signal of Horn alert func-tion6 GND - GroundJ700 (microSD)1 DAT2 I/O Data22 CD/DAT3 I/O Data33 CMD I/O Command input/output4 VDD O 3.3V output5 CLK O Clock output6 VSS - Ground7 DAT0 I/O Data08 DAT1 I/O Data19 CD I Card detect switch10 COMMON - Ground11 GND1 - Ground12 GND2 - GroundPin No. Name I/O Function
