Cisco Catalyst 3550

B-5
Catalyst 3550 Multilayer Switch Hardware Installation Guide
78-11358-01
Appendix B Connector and Cable Specifications
Cable and Adapter Specifications
Rollover Cable and Adapter Pinouts
This section describes how to identify a rollover cable and also describes the
adapter pinouts.
Identifying a Rollover Cable
To identify a rollover cable, compare the two modular ends of the cable. Hold the
cable ends 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 B-7.)
Figure B-7 Identifying a Rollover Cable
Pin 1
H10632
Pin 8
Pin 1 on one connector and
pin 8 on the other connector
should be the same color.