ROBO-503/ROBO-503N
ROBO-503/ROBO-503N User’s Manual
35
3.7.23 Pin Header Serial Port 2 Connector in RS-422 Mode (CN10)
Signal
PIN
Signal
Tx-
1
2
Rx+
Tx+
3
4
Rx-
NC
5
6
NC
NC
7
8
NC
NC
9
10
NC
3.7.24 Signal Description – Serial Port 2 – COM2 in RS-422 Mode (CN10)
Tx +/-
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.
Rx +/-
Serial input. This differential signal pair receives serial data from the communication link.
Received data is available in Serial Port 2 Receiver Buffer Register.
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