Network Hardware User's Manual

100BASE-TX Network
2-2 Network Requirements
100BASE-TX Network
Fixedfrontpanelportsofthe4H4282‐49,4H4283‐49,4H4203‐72,and4H4202‐72 providea
connectionthatsupportsCategory5UTPcabling.Thedeviceattheotherendofthe
twistedpairsegmentmustmeetIEEE802.3‐2002100BASE‐TXFastEthernetnetwork
requirementsforthedevicestooperateat100 Mbps.RefertotheCablingGuidefordetails.
100BASE-FX Fiber-Optic Network
The4H4284‐49DFE‐Goldmoduleprovides48portsthatsupport100Mbpsmultimode
fiber‐opticconnectivitythrough48fixedfront‐panelMT‐RJconnectors,whichsupport
100BASE‐FXfiber‐opticcabling.Thedeviceattheotherendofthefiber‐opticsegment
mustmeet100BASE‐FXFastEthernetnetworkrequirements
forthedevicestooperateat
100 Mbps.IEEE802.3u100BASE‐FXcharacteristicsforMultimodeFiberisasegment
lengthof412 meters(switchedport)inhalfduplex,2 k ilometers(switchedport)infull
duplex.Thisdistancewillbeconsiderablyshorterfromarepeaterport.Makesureto
checkyournetworkdiameterspecifications.
RefertotheCablingGuidefordetails.
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.