Understanding the network.pdf - Back to Home

need to crimp the CAT 5 strands following the Cisco RJ-45 head pin
assignments. Table 7.1 provides this information.
Table 7.1. Cisco Console Cable Pinouts
CAT 5 Standard Cable CAT 5 RJ45 Head Cisco Cable Cisco RJ45 Head
Blue Pin 1 Brown Pin 8
White Blue Pin 2 Blue Pin 7
Orange Pin 3 Yellow Pin 6
White Orange Pin 4 Green Pin 5
Green Pin 5 Red Pin 4
White Green Pin 6 Black Pin 3
Brown Pin 7 Orange Pin 2
White Brown Pin 8 Gray Pin 1
NOTE
The AUX port (which is available on most Cisco router models) is a
standard async port and can be configured to do a number of things,
such as provide a second console port for out-of-band (dial-in) access
to the router, provide remote network access over PPP or SLIP, or
function as a backup link for a dedicated WAN connection.
RJ45-M (male) to RS232C-F (female) adapter (25-pin, labeled
Terminal) connects your PC's COM port to the Cisco serial cable. See
Table 7.2 for the RJ45 head to DB25/RS232 pin translation.
Table 7.2. RJ45-M to DB25 Pin Translation
RJ45-M DB-25-F
Pin 1 Blue to Pin 4
Pin 2 Orange to Pin 20
Pin 3 Black to Pin 2
Pin 4 Red to Pin 7
Pin 5 Green to Pin 7
Pin 6 Yellow to Pin 3