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The 12V power connector mainly supplies power to the CPU. If the 12V power connector is not connected, the computer will not start. To meet expansion requirements, it is recommended that a power supply that can withstand high power consumption be used (500W or greater). If a power supply is used that does not provide the required power, the result can lead to an unstable or unbootable system. Pin No. Definition 1 GND 2 GND 3 +12V 4 +12V Pin No. Definition 1 GND 2 GND 3 VIN_IN 4 VIN_IN 5 GND 6 GND 7 GND 8 GND 9 GND ATX_12V 2) DC_IN (SC In Power Connector) GND (Pin 1 & 2) VIN (Pin 3 & 4) Hardware Installation - 18 - 6 1 Pin No. Definition 1 PS POWER 2 MCLK 3 MDATA 4 KCLK 5 KDATA 6 GND 3) KB_MS (PS/2 Mouse/Keyboard cable connector) 4) BLK_CN (LCD Inverter Connector) 41 42 1 5 Pin No. Definition 1 VCC 2 BLKCTL 3 ENABKL 4 GND 5 +12V - 19 - Hardware Installation 5) COM1 (Serial Port 1 Cable Connector)/JRS3/JRS2/JRS4/JRS1 6) JCOM1 (COM1 Power Select jumper) 7/8/9/10) RS232/RS422/RS485 Select Jumpers for COM1) The COM header can provide one serial port via an optional COM port cable. For purchasing the optional COM port cable, please contact the local dealer. COM1 JRS3 JRS1 JRS4 JRS2 1 9 2 10 Pin No. Definition 1 NRXD1_D- 2 NDCD1_D- 3 NDTR1_D- 4 NTXD1_D- 5 NDSR1- 6 GND 7 NCTS1- 8 NRTS1- 9 NC 10 NRI1- 1-2 Close: RS232 (Default setting) JRS1/JRS2/JRS3/JRS4: JCOM1: 1 2-3 Close: RS422/RS485 1 Pin No. Definition 1 RXD232 2 RXD1 3 RXD422 4 RXD1 5 RXD485 6 RXD1 1-2 Close: RS232 3-4 Close: RS422 5-6 Close: RS485 2 6 1 5 2 6 1 5 2 6 1 5 JCOM1 Hardware Installation - 20 - 11/12) COM3/COM4 (Serial Port 3/4 Cable Connectors) JCOM3 COM3 COM4 1 9 2 10 Pin No. Definition 1 NRXD3- 2 NDCD3- 3 NDTR3- 4 NTXD3- 5 NDSR3- 6 GND 7 NCTS3- 8 NRTS3- 9 NC 10 RI3-/1.5V/12V Pin No. Definition 1 NRXD4- 2 NDCD4- 3 NDTR4- 4 NTXD4- 5 NDSR4- 6 GND 7 NCTS4- 8 NRTS4- 9 NC 10 NRI4- COM3/COM4 COM3 COM4 2 6 1 5 2 6 1 5 2 6 1 5 1-2 Close: 5V (Power COM) 3-4 Close: RI (STAND COM) 5-6 Close: 12V (Power COM) Pin No. Definition 1 +5V 2 GND 3 NRI3-(RI#) 4 GND 5 +12V 6 GND 13) JCOM3 (5V/12V/RI Signal Select Header for Serial Port 3) - 21 - Hardware Installation 14/15) COM5/COM6 (Serial Port 5/6 Cable Connectors) 16) JP2 (LVDS Panel GPIO 1 &2 Control Jumper ) COM5 COM6 1 9 2 10 Pin No. Definition 1 NRXD5- 2 NDCD5- 3 NDTR5- 4 NTXD5- 5 NDSR5- 6 GND 7 NCTS5- 8 NRTS5- 9 NC 10 NRI5- Pin No. Definition 1 NRXD6- 2 NDCD6- 3 NDTR6- 4 NTXD6- 5 NDSR6- 6 GND 7 NCTS6- 8 NRTS6- 9 NC 10 NRI6- Pin No. Definition 1 VCC3 2 VCC3 3 GPIO_1 4 GPIO_2 5 GND 6 GND COM5/COM6 COM5 COM6 01 Default For 1024*768 10 -- For 1024*600 1 2 5 6 1 2 5 6 Hardware Installation - 22 - 17) LVDS (LVDS Connector) LVDS stands for Low-voltage differential signaling, which uses high-speed analog circuit techniques to provide multigigabit data transfers on copper interconnects and is a generic interface standard for high-speed data transmission. Pin No. Definition Pin No. Definition 1 VCC3 21 A5P_C 2 VCC 22 A4...