Identifying A Rollover Cable - Cisco Router 3600 Hardware Installation Manual

Chapter 3 Installing the Router
Connecting to a Console Terminal or Modem

Identifying a Rollover Cable

Use a rollover cable to connect to the asynchronous serial console and auxiliary ports. You can identify
a rollover cable by comparing the two modular ends of the cable. Hold 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 3-65.) If your cable came from
Cisco, pin 1 will be white on one connector, and pin 8 will be white on the other (a rollover cable reverses
pins 1 and 8, 2 and 7, 3 and 6, and 4 and 5).
Figure 3-65 Identifying a Rollover Cable
Pin 1 and pin 8
should be the
same color
Pin 1
Pin 8
Cisco 3600 Series Routers Hardware Installation Guide
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OL-2056-05