Cable Pinouts - Cisco Catalyst 1000 Series Hardware Installation Manual

Connector and Cable Specifications

Cable Pinouts

Cable Pinouts
Figure 28: Four Twisted-Pair Straight-Through Cable Schematic
Figure 29: Four Twisted-Pair Semi-Cross Cable Schematic
Figure 30: Two Twisted-Pair Straight-Through Cable Schematic
Figure 31: 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 24-Port and 48-Port Switch Hardware Installation Guide
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