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SI-642 User Manual
2.4.5 Pin Assignment for COM1 (RJ45) Port
Signal Name
Pin # Pin#
Function
RTS, Request to Send
1
2
Data Terminal Ready
TXD, Transmit Data
3
4
GND, Ground
GND, Ground
5
6
RXD, Receive Data
DSR, Data Set Ready
7
8
CTS, Clear to Send