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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