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18
Serial cable connection:
Pin Signal To Pin
DB9-S
To Pin
(DB25-S)
To Pin
(RJ45)
1 Data Carrier Detect
(DCD)
Unused Unused Unused
2 Receive Data (RxD) 3 2 2
3 Transmit Data (TxD) 2 3 5
4 Data Terminal Ready
(DTR)
6 6 6
5 Signal Ground (GND) 5 7 3 or 4
6 Data Set Ready
(DSR)
4 20 1
7 Request To Send
(RTS)
8 5 Unused
8 Clear To Send (CTS) 7 4 Unused
9 Ring Indicator (RI) Unused Unused Unused