Total Access 5000 Business Services Deployment Guide
2-20 65K510DEP08-1A
CH DS3 PPP/MLPPP 3-Port Line Module Description
TheCHDS3PPP/MLPPP3‐PortLineModuleprovideschannelizedPoint‐to‐PointProtocol
(PPP)andMulti‐LinkPoint‐to‐PointProtocol(MLPPP)networkconnectivitytoaTotalAccess
5000systembywayofthreechannelizedDS3interfaces.Eachchannelizedinterfaceprovides
connectivityfor28DS1channels.
PPP T1 Link to Ethernet
PPPoperatesatthedatalinklayerandprovidesend‐to‐endconnectivityfordevicesacrossa
point‐to‐pointlink.PPPismadeupofasuiteofprotocols,includingLCP,authentication,and
NCP(IPCPonly),usedtoestablishandmaintainconnectivity.TheCHDS3PPP/MLPPP3‐
PortLineModule
willforwardframesfromaT1channelwithPPPencapsulationtothe
EthernetuplinkwithasingleS‐tag.
MLPPPgroupscancontainamaximumofeightT1channels.
DS3 EFM 4-Port Line Module Description
TheDS3EFM4‐PortprovidesfourDS3interfacestotheTotalAccess5000shelf.TheDS3EFM
4‐PortisdesignedforuseasanendEthernetFirstMile(EFM)bondinginterfacethatprovides
aggregateEthernetconnectivitytoadditionalTotalAccess5000ChassisortoNetVantaDS3
EFMNetworkCircuit
TerminatingEquipment(NCTE).
TheDS3EFM4‐PortprovidesfourDS3signalsconsistingofdigitaldatatransmittedat44.736
Mbpseach.
•TheLMIODS3BNCRearPanelmustbeinstalledpriorto insertionofthe
DS3EFM4‐Portintothechassis.Ina1:1redundantconfiguration,theDS3
EFM4‐Portmodulesmustbeinstalledinconsecutive
odd‐evenslots.
•TheLMIODS3BNCRearPaneloccupiestwoslots.Slot
11 cannotbeused
sinceslot
12/SCM,SM A,and SM BslotsarealreadyoccupiedbytheSMIO3
rearpanel.