Cisco uses a proprietary cable pinout for their serial console cables. Note: Pinout or pin-out is a term used in electronics to describe how an electrical cable is wired, or the function of each wire (pin) in a connector. Given below are the pinout details for a Cisco cable. 9-pin Cisco Cable Cable Pinout 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 Signal DB25F RJ45 Shield [...]