Connecting the Console Terminal and Modem
Cisco 2600 Series Hardware Installation Guide
3-18
Connecting the Console Terminal and Modem
Your router includes asynchronous serial console and auxiliary ports. These ports provide
administrative access to your router either locally (with a console terminal) or remotely
(with a 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. Holding 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 3-14.) If your cable came from Cisco Systems, 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 3-14
Identifying a Rollover Cable
Pin 1
Pin 8
H3824
Pin 1 and pin 8
should be the
same color
