Radwin 5000 HPMP - Chapter 15: Hub Site Synchronization over Ethernet; RADWIN Ethernet HSS

RADWIN5000HPMPUserManual Release3.5.70 15‐1
Chapter15:
HubSiteSynchronizationover
Ethernet
RADWINEthernetHSS
EthernetHSSRequirements
TheRADWINEthernetHubSiteSynchronization(HSSoE)methodprovidesintra‐site
synchronizationwithouttheneedforexternalcablesoranHSSunit.Syncsignalsare
exchangedbetweencollocatedradiosovertheregularEthernetconnection.
TheEthernetHSS(HSSoE)methodrequiresLayer2Ethernetconnectivitybetweencollocated
ODUs.Ithastworequirements:
• Collocated ODUsprovidingEthernetservicesonly,shouldbeconnectedtoanIDU‐H
insteadofregularPoEdevices.Othersimpleswitchesmayworkwithdegradedper‐
formance.Theyarenotrecommendedandproblemsarisingfromtheirusewillnot
beeligibleforanykindofsupport.
• Collocated RADWIN2000classODUsprovidingE1/T1servicesshoulduseanIDU‐Cor
IDU‐EandthenbeconnectedtoanIDU‐Hfunctioningasaswitch.OneoftheLAN
portsontheIDU‐CorIDU‐EisconnectedtoanyofthesixIDU‐HPoEportsorthetwo
LANports.(ThisispossiblebecausetheIDU‐CorIDU‐ELANcableonlyusesfourpins
fordata;thepowerpinsarenotusedsothereisnoriskofdamagetothem.)Inthis
way,uptoeightsuchODUsmaybecollocated.
Note
YoumayonlyuseoneIDU‐H.Thatis,theymaynotbecascaded.
Caution
IfyouareusinganIDU‐C0(GbE)itmustbeconnectedtotheIDU‐HLANport
only.ConnectingittotheP0Eportswilldamagetheunitandinanyevent,it
willnotwork.