Velleman STP8025 Manuel d'utilisateur télécharger pdf

What'sthedifferencebetweenCAT5cableandCAT5ecable?

CAT5cableandCAT5ecablehaveseveraldifferences;themostimportantareasfollows:

* Network support‐CAT 5 cable will support 10/100  Ethernet. That is, Ethernet and Fast

Ethernet. CAT 5e cable will support Ethernet, Fast Ethernet, and Gigabit Ethernet. CAT 5e

cableiscompletelybackwards compatible,

andcanbeused inanyapplicationin whichyou

wouldnormallyuseCAT5cable.

* Lesscrosstalk‐Crosstalkis theelectrical interferencethatresults whenone wire'ssignal

affects another wire's signal. CAT 5e cable has been improved over CAT 5 cable in this

respect,andcrosstalkhasbeen

greatlyreduced.

*Bandwidth‐Thisisdirectlyrelatedtonetworksupport,inthe sensethatthebandwidthis

the information‐carrying capacity of a system. The greater the bandwidth, the greater the

information‐carrying capacity in a given period of time. CAT 5e cable is rated at 100 MHz,

and

itisthisincreasedbandwidth(comparedtoCAT5cable)thatallowsittosupportGigabit

Ethernet.

IfyouareunsurewhethertoorderCAT5ORCAT5e,itisrecommendedorderingCAT5e.



WhatisthedifferencebetweenCAT5eandCAT6cable?



Category 6 cable, commonly referred to as CAT 6, is a cable standard for Gigabit Ethernet

andothernetworkprotocolsthatisbackwardcompatiblewiththeCAT5/5eandCAT3cable

standards.CAT 6features more stringentspecificationsforcrosstalk andsystemnoise. The

cable standard provides performance of

up to 250 MHz and is suitable for 10BASE‐T /

100BASE‐TX and 1000BASE‐T / 1000BASE‐TX (Gigabit Ethernet). It is expected to suit the

10GBASE‐T (10GigabitEthernet)standard,althoughwithlimitations onlength ifunshielded

CAT6cableisused.CAT6cablescanbeidentifiedby

theprintingontheside.

Currently there is a great deal of confusion among Ethernet cable buyers concerning

whether to purchase CAT 5e, or to use CAT 6. Most of this confusion comes from a

misunderstanding by the buyer that buying CAT 6 cable will give them an "all gigabit"

network.Thisisnotthecase.Unlesseverysinglecomponentinthenetworkisgigabitrated

youwillneverhaveagigabitnetwork,becauseyournetworkwillalwaysrunatthespeedof

your slowest device.CAT 5ecableofgood quality can run near orat gigabitspeeds, itjust



cannotbe"certified"forthisuse.Bycomparison,CAT6isdesignedespeciallyforgigabituse,

andiscertifiedtooperateatsaidspeed.

TheCAT6cableisterminatedineithertheT568AschemeortheT568Bscheme.Aslongas

bothendsofacableareterminatedusing

thesamescheme,itdoesn'tmatterwhichscheme

isused;theyarebothstraightthrough(pin1to1,pin2to2,etc)andthepairingisthesame.

Mixing T568A‐terminated patch cords with T568B‐te rminated horizontal cables (or the

reverse)doesnotproduceproblemsinafacility.The

T568BSchemeisbyfarthemostwidely

usedmethodofterminatingpatchcables.

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Page 1

What'sthedifferencebetweenCAT5cableandCAT5ecable?CAT5cableandCAT5ecablehaveseveraldifferences;themostimportantareasfol

Page 2

Crossoverisusedforhubtohub,computertocomputer,wherevertwo‐waycommunicationisnecessary.AllgigabitEthernetequipment,andmostnew10/1

Page 3

Screenedunshieldedtwistedpair(S/UTP)AlsoknownasFullyshielded(orFoiled)TwistedPair(FTP),isascreenedUTPcable(ScTP).Shielde

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Velleman STP8025 Manuel d'utilisateur

Naviguer en ligne ou télécharger Manuel d'utilisateur pour Accessoires pour les appareils électriques Velleman STP8025. Velleman STP8025 User Manual Manuel d'utilisatio

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