Netgear DS508 User Manual download pdf (Page 12)

Model DS508/DS516/DS524 Dual Speed Stackable Hub Installation Guide

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 repeaters and switch ports are media-dependent interfaces with

crossover ports, referred to as MDI-X or Normal ports. Computers 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.

RJ-45 Connector

The RJ-45 connector (shown in the illustration with an RJ-45 plug) is used to connect

workstations, hubs, and switches through unshielded twisted pair cable. The RJ-45 connector

accepts four-pair Category 3 or Category 5 UTP cable.

Cable & Connector Information

Straight-through

twisted pair cable

Crossover

twisted pair cable

8146EB

Uplink or

MDI port

Normal or

MDI-X port

Normal or

MDI-X port

Normal or

MDI-X port

711EA

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Netgear DS508 User Manual Page 12