User's Manual

Console Port Signals and Pinouts
The Cisco ASR 901S Aggregation Services Router ships with a console cable kit, which contains the cable
and adapters to connect a console terminal (an ASCII terminal or PC running terminal emulation software).
The console cable kit includes the following items:
•
RJ-45-to-RJ-45 rollover cable
•
RJ-45-to-DB-9 female DTE adapter (labeled TERMINAL)
•
RJ-45-to-DB-25 female DTE adapter (labeled TERMINAL)
To connect a modem, you need to order an auxiliary cable.
Figure 40: Connecting the Console Port to a PC
Illustration showing the console port to PC connection will be shown here.
For console connections, see Connecting Console Port and Pinouts.
Identifying a Rollover Cable
To identify a rollover cable, compare the modular plugs at the two ends of the cable. When you hold the plugs
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 below). If you
purchased your cable from Cisco Systems, pin 1 is white on one connector, and pin 8 is white on the other (a
rollover cable connects pins 1 and 8, 2 and 7, 3 and 6, and 4 and 5).
Figure 41: Identifying a Rollover Cable
Cisco ASR 901S Series Aggregation Services Router Hardware Installation Guide
82 OL-29732-01
Cable Specifications
Console Port Signals and Pinouts
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