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2.1 SID-21WR2 connector mapping
2.1.1
Serial port connector (COM)
2.1.2
Serial port connector (COM)
Quick Reference Guide
RS-232
Signal
NC
RX
TX
NC
GND
RS-485
Signal
DATA-
DATA+
NC
NC
GND
SID-21WR2 Quick Reference Guide 13
PIN PIN
Signal
1
6
NC
2
7
RTS
3
8
CTS
4
9
NC
5
PIN PIN
Signal
1
6
NC
2
7
NC
3
8
NC
4
9
NC
5
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