Uplink Switches, Crossover Cables, And Mdi/Mdix Switching - NETGEAR DG834GT Reference Manual

Reference Manual for the Model DG834GT 108 Mbps Super Wireless ADSL Router
Figure B-2: Crossover Twisted-Pair Cable
Figure B-3: Category 5 UTP Cable with Male RJ-45 Plug at Each End
Note: Flat "silver satin" telephone cable may have the same RJ-45 plug. However, using telephone
cable results in excessive collisions, causing the attached port to be partitioned or disconnected
from the network.

Uplink Switches, Crossover Cables, and MDI/MDIX Switching

In the wiring table above, the concept of transmit and receive are from the perspective of the PC,
which is wired as Media Dependant Interface (MDI). In this wiring, the PC transmits on pins 1 and
2. At the hub, the perspective is reversed, and the hub receives on pins 1 and 2. This wiring is
referred to as Media Dependant Interface - Crossover (MDI-X).
Network and Routing Basics B-13
August 2004