Hardware information Serial port pinouts
Digi CM User Guide 181
Serial port pinouts
The Digi CM unit uses an RJ-45 connector for serial ports. Pin assignments are listed in the following
table.
Cable adapters
The Digi CM unit comes with four cable adapters. The following illustrations show cable adapter pin
outs. Additional adapters can be purchased from Digi in quantities of 8.
DB-25 Male console adapter
(Digi 8-pack reorder P/N 76000672)
DB-25 Male to RJ-45 connector pin assignments
Pin Description
1CTS
2DSR
3RxD
4GND
5 DCD Note: Inbound signal can also be used as a second ground.
6TxD
7DTR
8RTS
RJ-45 Signal DB-25M Signal
1 CTS Connected to 4 RTS
2 DSR Connected to 20 DTR
5DCD
3 RxD Connected to 2 TxD
4 GND Connected to 7 GND
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