1-28 (No.RA020)2.6.2 Module (BT/GPS) unit (XC2-0031-80, XC2-0040-10)2.6.3 Sub (Display) unit (XC3-0020-20, XC3-0070-20) (OnlyNX-5700)1 NC - Refer to “D-sub 25-pin connectorspecification”.2 RXD1 I3 TXD1 O4 AUXIO9 I/O5 DI I6 MI2 I7 GND -8 AUXIO8 I/O9 TXD2 O10 RXD2 I11 GND -12 AUXIO7 I/O Refer to “D-sub 25-pin connectorspecification”.13 AUXIO6 I/O14 SB -15 AUXO2 O16 AUXO1 O17 AFO O18 GND -19 DEO O20 AUXIO5 I/O21 AUXIO4 I/O22 AUXIO3 I/O23 AUXIO2 I/O24 AUXIO1 I/O25 ME -Pin No. Name I/O FunctionCN1(to Main unit A/2 CN735)1 54M I 5.4V input2 54M I 5.4V input3 GND - Ground4 GND - Ground5 BT_SW I Enable signal for 33BT and18BT6 G_TXD2 I Serial data intput7 G_RXD2 O Serial data output8 CTS2 O Serial data output9 RTS2 I Serial data input10 BT_AUD_DO I Audio signal input11 BT_AUD_DI O Audio signal output12 BCLK I Audio serial data bus bit clockinput13 WCLK I Audio serial data bus wordclock input14 BT_SHUTDOWN I Shutdown signal input15 GPS_PA_EN I GPS receiver part switchingsignal inputPin No. Name I/O Function16 GPS_ANT_SW I Enable signal for 33GPS17 GND - Ground18 GND - Ground19 GPS_ALM O Antenna open/short detection20 GPS_PWR O Antenna power supply detec-tionPin No. Name I/O FunctionCN2 (to Main unit A/2 CN900)1 SP+ I Speaker output2 SPG - Speaker ground3 GND - Ground4 SB I Switched power supplyCN4 (LCD)1 VSSA - Ground2 VSSA - Ground3 VSSA - Ground4 VCC O 3V output5 VCC O 3V output6 VSSD - Ground7 VSSD - Ground8 VSSD - Ground9 IOVCC O 1.8V output10 IOVCC O 1.8V output11 RDX O LCD driver RD signal12 WRX O LCD driver WR signal13 DCX O LCD driver data/command switchsignal14 CSX O LCD driver chip-serect signal15 DB1 I/O LCD driver data output16 DB2 I/O LCD driver data output17 DB3 I/O LCD driver data output18 DB4 I/O LCD driver data output19 DB5 I/O LCD driver data output20 DB6 I/O LCD driver data output21 DB7 I/O LCD driver data output22 DB8 I/O LCD driver data output23 DB10 I/O LCD driver data output24 DB11 I/O LCD driver data output25 DB12 I/O LCD driver data output26 DB13 I/O LCD driver data output27 DB14 I/O LCD driver data output28 DB15 I/O LCD driver data output29 DB16 I/O LCD driver data output30 DB17 I/O LCD driver data outputPin No. Name I/O Function
