Cisco Cable Cable

Cisco uses a proprietary cable pinout for their serial console cables.

9-pin Cisco Cable Cable Pinout

9 pin Female connector

9 pin D-Sub Female

Ethernet RJ-45 Male Connector

Ethernet RJ-45 Male

Signal DB9F RJ45
Receive Data 2 3
Transmit Data 3 6
Data Terminal Ready 4 7
Ground 5 4
Ground 5 5
Data Set Ready 6 2
Request to Send 7 8
Clear to Send 8 1

25-pin Cisco Cable Cable Pinout

25 pin Female connector

25 pin D-Sub Female

Ethernet RJ-45 Male Connector

Ethernet RJ-45 Male

Signal DB25F RJ45
Shield Ground 1  
Transmit Data 2 6
Receive Data 3 3
Request to Send 4 8
Clear to Send 5 1
Data Set Ready 6 2
Ground 7 4
Ground 7 5
Data Terminal Ready 20 7

This data was contributed by the team at The Hardware Book.



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