Cable Pinouts
Figure 39: Four Twisted-Pair Straight-Through Cable Schematic
Figure 40: Four Twisted-Pair Semi-Cross Cable Schematic
Figure 41: Two Twisted-Pair Straight-Through Cable Schematic
Figure 42: Two Twisted-Pair Crossover Cable Schematic
Identifying a Crossover Cable
To identify a crossover 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 a different
color from the wire connected to the pin on the inside of the right plug.
Cisco Catalyst 1000 Series 8-Port and 16-Port Switch Hardware Installation Guide
53
Connector and Cable Specifications
Cable Pinouts