Enterasys Enterasys SecureStack B2 B2G124-24 Guida di Installazione Scaricare il pdf (Pagina 23)

Connectivity

SecureStack B2 Installation Guide 1-5

High-Speed Stack Connections

Theswitcheshaverear‐panelconnectorsforhigh‐speedconnectionsinastack

configuration.Thehigh‐speedstackingcablesusedfortheconnectionsareoptionalitems

andmustbeorderedseparately.Stackingcablesareavailableinthreelengths:1foot,

1meterand5meters.See“ConnectingHigh‐SpeedStacking

Cables”onpage 3 ‐10for

detailsonthesecables.

Redundant Power Supply Capability

Theswitchhaspowersupplyredundancycapabilitywhenconnectedtoanoptional

externalredundantpowersupply(RPS).Iftheinternalpowersupplyfails,theRPS

assumestheentireloadoftheswitchwithoutinterruptingnetworktraffic.Theinternal

powersupplyandRPSeachhavetheirownACpowerconnection,whichenables

the

connectionofeachpowersupplytoadifferentACpowercircuitforadditionalACpower

sourceredundancy.

Connectivity

TheswitchconnectstoEthernetnetworksorworkstationsviathefixedfrontpanelRJ45

connectorsandfouruplinkportsthatsupportoptionalMini‐GBICs.

Atthetimeofthisprinting,theMini‐GBICsthatareavailablefromEnterasysand

supportedbyB2switchesaredescribedinTable 1‐1onpage 1‐6.

TheseMini‐GBICsmeet

orexceedtheIEEE802.3z‐1998standard.

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Enterasys Enterasys SecureStack B2 B2G124-24 Guida di Installazione Pagina 23