Netgear EN108TP EN104TP Installation Guide - Page 13

CTaebclhenaicnadl CSopnenciefcictaotrioInnfsormation Twisted Pair Cables For two devices to communicate, the transmitter of each device must be connected to the receiver of the other device. The crossover function is usually implemented internally as part of the circuitry in the device. Most ports on switches and repeaters have media-dependent interfaces with crossover ports. These ports are referred to as MDI-X or Normal ports. Computer and workstation adapter cards are usually media-dependent interface ports referred to as MDI or Uplink ports. The figures illustrate the use of straight-through and crossover twisted pair cables. Uplink or MDI port 1 Tx 2 Straight-through twisted pair cable Normal or MDI-X port 1 Rx 2 3 Rx 6 3 Tx 6 Normal or MDI-X port 1 Rx 2 Crossover twisted pair cable Normal or MDI-X port 1 Rx 2 3 Tx 6 3 Tx 6 8146EA Model EN104TP/EN106TP/EN108TP Ethernet Hub Installation Guide