User Manual

Chapter 3. Hardware Description
◆ RS422 Full Duplex
Pin Signal Description
2 RXD+ Receive differential data positive (Input)
3 TXD+ Transmit differential data positive (Output)
6 RXD- Receive differential data negative (input)
7 TXD- Transmit differential data negative (Output)
◆ LED
Pin Signal Description
1 POWER LED ON when power is on
2 TXD LED ON when serial data is transmitted
3 RXD LED ON when serial data is received.
4 READY
Indicates the processor status
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