Specifications

1-14 Chapter 1: 7401-2xxx/3xxx Product Overview
100Base‐Tiswiredidenticallyto10Base‐T,exceptthatthetwistedpair
cablemustbeCategory5andthehubsmustpermit100or10/100MB/s
operation.Although10Base‐TwilloperateonCategory3twistedpair,
orNCRʺ747ʺcable,anupgradetoCategory5isrequiredfor
100Base‐T.
Acustomerdesiringtousetheterminalinanexisting10Base‐T
environmentcandosoandsimplyrunat10MB.Inordertoupgradeto
100MB/s,Category5cableand100or10/100hubsmustbeinstalled.
NCRstronglyrecommendstheuseofCategory5forall
newcabling,
evenifthecustomerinitiallyintendstorunonly10Base‐T.
LEDIndicatorsforLinkIntegrity(verifiescableandhubconnectionare
good)andLANspeedisprovidedontheProcessorBoardneartherow
ofconnectorsatthebottomofthee‐box.TheLEDisON
(yellow)when
thespeedisrunningat100MB/s.
LinkIntegrityisprovidedtothePCchipsettopermitboot‐upsoftware
toverifythepresenceoftheLANconnection.Softwaremustallow2
secondsafterpower‐upinorderfortheLinkIntegritysignaltobecome
valid.