Cable Specifications

Cable Specifications

Console and Auxiliary Port Signals and Pinouts

Identifying a Roll-Over Cable

You can identify a roll-over cable by comparing the two modular ends of the cable. Holding the cables side-by-side, with the tab at the back, the wire connected to the pin on the outside of the left plug should be the same color as the wire connected to the pin on the outside of the right plug. (See figure A-1). If your cable came from Cisco Systems, pin 1 will be white on one connector, and pin 8 will be white on the other (a roll-over cable reverses pins 1 and 8, 2 and 7, 3 and 6, and 4 and 5).

Pin 1 and pin 8 should be the same color

Pin 1

 

 

 

Pin 8

 

 

H3824

Figure A-1. Identifying a Roll-Over Cable

A-2