| 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 | ||
