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10BASE-T Network
2-2 Network Requirements
Innormalusage(andtypicalimplementations)thereisnoneedtoenable/disableportsfor
LinkAggregation.Thedefaultvalueswillresultinthemaximumnumberofaggregations
possible.Iftheswitchisplacedinaconfigurationwithitspeersnotrunningtheprotocol,
noaggregationswillbeformedandtheDFE
moduleswillfunctionnormally(thatis,
SpanningTreewillblockredundantpaths).
FordetailsaboutthecommandsinvolvedwithconfiguringtheLinkAggregation
function,refertotheMatrixDFE‐GoldSeriesConfigurationGuide.
10BASE-T Network
Whenconnectinga10BASE‐TsegmenttoanyoftheRJ45fixedfront‐panelportsofthe
4H4285‐49,ensurethatthenetworkmeetstheEthernetnetworkrequirementsofthe
IEEE 802.3‐2002standardfor10BASE‐Tand802.3af‐2003standardforPowerover
Ethernet(PoE)powersourcingapplicationsoverEthernetcabling.
Formoreinformation
aboutPoE,refertoAppendix C.
100BASE-TX Network
Thefixedfrontpanelportsofthe4H4285‐49 provideaconnectionthatsupportsCategory
5UTPcabling.Thedeviceattheotherendofthetwistedpairsegmentmustmeet
IEEE 802.3‐2002100BASE‐TXFastEthernetnetworkrequirementsforthedevicesto
operateat100 Mbps.Thefixedfront‐panelportsalsosupportthe802.3af‐2003standard
forPowerover
Ethernet(PoE)powersourcingapplicationsoverexistingcabling.For
moreinformationaboutPoE,refertoAppendix C.
Note: If a port is to operate at 100 Mbps, Category 5 cabling must be used. Category 3
cabling does not meet 100 Mbps specifications. For 10 Mbps operation only, Category 3 or
Category 5 cabling can be used. Refer to the “100BASE-TX Network” on page 2-2 for
information about 100BASE-TX networks and cabling.
Note: The fixed ports of the module support Category 5 UTP cabling with an impedance
between 85 and 111 ohms for 100 Mbps operation.
The module is capable of operating at either 10 or 100 Mbps. The module automatically
senses the speed of the other device and adjusts its speed accordingly.