Zte ZXSDR R8978 - Installation Modes; Typical Networking Applications; Figure 2-4 Chain Networking

ZXSDRR8978UserManual
ExternalDeviceDescriptionExternalInterface
RRULMTOperatesandmaintainstheRRUatthelocal
end
Logicalinterface:not
standardized
Physicalinterface:Ethernet
interface
CascadeRRUUpstreamRRULogicalinterface:Irinterface
Physicalinterface:optical
berinterface
•ExternalinterfacesexcludethepowerandantennainterfaceoftheRRU.
Note:
TheLMTattheBBUsidecanoperateandmaintainmultipleRRUsundertheBBU.ZTE
NetNumen™EMSprovidesuniedoperationandmaintenanceonmultiplesites.
2.6InstallationModes
TheZXSDRR8978supportsthreeinstallationmodes:
lAsingleRRUmountedonapole
lTwoRRUsmountedonapole
lMountedonawall
lMountedonslotsteel
lMountedonanglesteel
2.7TypicalNetworkingApplications
TheZXSDRR8978supportsthefollowingnetworkingsolutions:
lChainnetworking
Chainnetworkingappliestostrip-shapedareaswithsparsepopulation,whereoptical
berscanbelaidconveniently.Figure2-4showsachainnetworkingsolution.
Figure2-4ChainNetworking
lStarnetworking
Inastarnetworkingsolution,aBBUisconnectedtoeachRRUandtheRRUis
theterminalequipment.Thisnetworkingtypeissimpleandeasyformaintenance
2-6
SJ-20140808143736-001|2014-10-30(R1.1)ZTEProprietaryandCondential