User manual

100BASE-TX Twisted Pair Network
2-2 Network Requirements
100BASE-TX Twisted Pair Network
Whenconnectinga100BASE‐TXsegmenttooneofthefixedRJ45ports(oddnumbered
ports1‐15),useCategory5UTPcabling.The
deviceattheotherendofthetwisted pair 
segmentmustmeetIEEE802.3‐2 002100BASE‐TXFastEthernetnetworkrequirementsfor
the
SecureStackA2tooperateat100Mbps.
1000BASE-T Twisted Pair Gigabit Ethernet Network
TheoptionalMGBIC‐02supports1000BASE‐TcompliantRJ45copperconnections.When
connectinga1000BASE‐Tsegment,useCategory5UTPcabling.Thedeviceattheother
endofthetwistedpairsegmentmustmeetIEEE802.3‐20021000BASE‐TGigabitEthernet
networkrequirementsforthedevicestooperat e at1000
Mbps.
WhentheA2isinstandal onemode(notstacked),thetwostackports17and18maybe
user‐configuredtoserveasastandardswitch portsallowingGigabituplinktothe
network.
100BASE-FX Multimode Fiber-Optic Network
TheA2H254‐16provides8portsthatsupport100Mbpsmultimodefiber‐optic
connectivityusingthefixedfront‐panelMT‐RJports(evennumberedports2‐16).The
MT‐RJfixedfront‐panelports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kilometers(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: When using the fixed RJ45 ports on the SecureStack A2 for 100 Mbps operation
use Category 5 UTP cabling with an impedance between 85 and 111 ohms for 100 Mbps
operation.