J_RS1 J1_RS485 J_GPIO2 SPK1 UART1
1 UART_RX1_232 1 RS485_A1 1 GPIO1 1 L_SPK+ 1 UART1_RX_CON
2 UART_TX1_232 2 RS485_B1 2 GPIO3 2 L_SPK- 2 UART1_TX_CON
3 UART_RX2_232 3 VCC5_485_1 3 GPIO2 3 R_SPK+ 3 VCC3_TTL
4 UART_TX2_232 4 GND 4 GPIO4 4 R_SPK- 4 GND
5 UART_RX3_232 J2_RS485 5 GPIO7 J_KEY1 PUSB1
6 UART_TX3_232 1 RS485_A2 6 GPIO5 1 GND 1 USB_VCC5
7 UART_RX4_232 2 RS485_B2 7 GPIO8 2 POWER_ON_BT 2 USB_D1N
8 UART_TX4_232 3 VCC5_485_2 8 GPIO6 3 KEY_Reset 3 USB_D1P
9 GND I2C-TP 9 VCC5_GPIO 4 RECOVER_BUTTON 4 GND
10 GND 1 GND 10 VCC5_GPIO
debug 2 I2C4_SDA_M2 11 GND HOST1 PUSB2
1 NC 3 I2C4_SCL_M2 12 GND 1 HOST1_VCC5 1 USB_VCC5
2 UART2_TX 4 TP_RST_C 2 HOST1_D1N_CON 2 USB_D2N
3 UART2_RX 5 TP_INT_C 3 HOST1_D1P_CON 3 USB_D2P
4 GND 6 TP_VCC 4 GND 4 GND