Avalue EBM-LX800 - Manual (Page 38)

EBM-LX800
38 EBM-LX800 User’s Manual
2.4.17 Serial Port 2 Connector in RS-422/485 Mode (JRS422)
Signal PIN PIN Signal
422/485TXC- 1 2 485RXC-
422/485TXC+ 3 4 485RXC+
+5V 5 6 GND
2.4.17.1 Signal Description – Serial Port 2 Connector in RS-422/485 Mode (JRS422)
Signal Signal Description
TxC+/-
Serial output. This differential signal pair sends serial data to the communication
link. Data is transferred from Serial Port 2 Transmit Buffer Register to the
communication link, if the RTS register of the Serial Port 2 is set to LOW.
RxC+/-
Serial input. This differential signal pair receives serial data from the
communication link. Received data is available in Serial Port 2 Receiver Buffer
Register.
DATA+/-
This differential signal pair sends and receives serial data to the communication
link. The mode of this differential signal pair is controlled through the RTS
register of Serial Port 2. Set the RTS register of the Serial Port 2 to LOW for
transmitting, HIGH for receiving.