From AllPinouts
Connector pinout for: RS-232D Serial RJ-45 8 pin

RJ-45 8pin male connector

RJ-45 8pin female connector
| Pin
| Name
| Dir
| Description
|
| 1
| DSR / RI
| IN
| Data Set Ready / Ring Indicator
|
| 2
| CD
| IN
| Carrier Detect
|
| 3
| DTR
| OUT
| Data Terminal Ready
|
| 4
| GND
|
| System Ground
|
| 5
| RXD
| IN
| Receive Data
|
| 6
| TXD
| OUT
| Transmit Data
|
| 7
| CTS
| IN
| Clear to Send
|
| 8
| RTS
| OUT
| Request to Send
|
Notes
- Direction is DTE (Computer) relative DCE (Modem)
References

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