Cisco RJ45 RollOver cable pinout

8 pin RJ45 (8P8C) male connector layout
8 pin RJ45 (8P8C) male connector


8 pin RJ45 (8P8C) male connector layout
8 pin RJ45 (8P8C) male connector

Rollover Cable:

You can identify a roll-over 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. If your cable was purchased from Cisco Systems, pin 1 will
be white on one connector, and pin 8 will be white on the other.

Uses of Rollover Cable:

Rollover cables, like other cabling types, got
their name from how they are wired. Rollover cables essentially have one
end of the cable wired exactly opposite from the other. This
essentially “rolls over” the wires- but why would we need to do such a
thing? Rollover cables, also called Yost cables, usually connect a
device to a router or switch’s console port. This allows a programmer to
make a connection to the router or switch, and program it as needed.

PC to Console Port

Router AUX port to External Modem 

Router
Pin name
Router
Pin
Direction Workstation
Pin
Workstation
Pin name
White-Orange 1 8 Brown
Orange 2 7 White-Brown
White – Green 3 6 Green
Blue 4 5 White-Blue
White-Blue 5 4 Blue
Green 6 3 White-Green
White-Brown 7 2 Orange
Brown 8 1 White-Orange

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