Grain GM8136 - UART;RS485 Connector; Table 2-8. Pin Definition of UART0 Connector (UART0 Connector: J9); Table 2-9. Pin Definition of UART1;RS485 Connector (UART1;RS485 Connector: J10)

GM8136/GM8136S EVB User Guide
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2.1.6 UART/RS485 Connector
The GM8136/GM8136S EVB offers two DIN connectors (J9, J10) for the applications of UART and RS485.
Please refer to Table 2-8 and Table 2-9 for the details on the pin definition of the UART and RS485
connectors.
Table 2-8. Pin Definition of UART0 Connector (UART0 Connector: J9)
Pin No. Signal Name Description
1 3V3 Power
2 TXD UART0 transmit
3 RXD UART0 receive
4 DGND GND
Table 2-9. Pin Definition of UART1/RS485 Connector (UART1/RS485 Connector: J10)
Pin No. Signal Name Description
1 3V3 Power
2 TXD UART1 transmit
3 RXD UART1 receive
4 DGND GND
5 /RE, DE Control signal of RS485