RITY102
10 RITY102 Quick Reference Guide
2.1 RITY102 connector mapping
2.2.1
External Serial Port 1 connector (COM1)
In RS-232 Mode
Signal
PIN PIN
Signal
DCDA#
1
2
RXDA
TXDA
3
4
DTRA#
GND
5
6
DSRA#
RTSA#
7
8
CTSA#
RIA#
9
In RS-422 Mode
Signal
PIN PIN
Signal
TxD1-
1
2
TxD1+
RxD1+
3
4
RxD1-
GND
5
6
NC
NC
7
8
NC
NC
9
In RS-485 Mode
Signal
PIN PIN
Signal
DATA1-
1
2
DATA1+
NC
3
4
NC
GND
5
6
NC
NC
7
8
NC
NC
9
