Top Qs
Timeline
Chat
Perspective
Rollover cable
Cable used to connect a terminal and router From Wikipedia, the free encyclopedia
Remove ads
A rollover cable (also known as a Yost cable, Cisco cable, or a console cable) is a type of null-modem cable that is used to connect a computer terminal to a router's console port. This cable is typically flat (and has a light blue color) to help distinguish it from other types of network cabling. It gets the name rollover because the pinouts on one end are reversed from the other, as if the flat cable had been rolled over.
![]() | This article includes a list of references, related reading, or external links, but its sources remain unclear because it lacks inline citations. (August 2023) |

This cabling system was invented to eliminate the differences in RS-232 wiring systems. Any two RS-232 systems can be directly connected by a standard rollover cable and a standard connector. For legacy equipment, an adapter is permanently attached to the legacy port.
Remove ads
See also
External links
Wikimedia Commons has media related to Rollover cable.
- Cabling Guide for Console and AUX Ports Document ID: 12223
- Zonker's Cisco Console Server Connections Guide
- Dave Yost Serial Device Wiring Standard
Wikiwand - on
Seamless Wikipedia browsing. On steroids.
Remove ads