363-206-295 DLP-518
27of5Page1997December1,Issue
TopologiesProvisioningSynchronizationTGSBBF2B.Table
CommentsApplication2NE1NE
aresystemsBothsupported.notistopologyThis
other.eachfromasynchronouslyoperating
RunningFreeRunningFree
ahavinginresultsbutallowedistopologyThis
withasynchronouslyoperatingsubnetworkSONET
NE’sThenetwork.theinNE’sothertorespect
FreeforprovisionedNEtheofftimingderiving
onPRSatonotbutittosynchronizedbewillRunning
synchronizationautomaticIfnetwork.the
system,ainenabledandsupportedisreconfiguration
anothertoswitchtoattemptwillsystem2NEthe
available.ifsource,timinglinequalitybetter
TimingLineRunningFree
twoThesupported.notistopologytimingThis
asynchronouslyoperatingbewillelementsnetwork
other.eachfrom
Mult-ExternalRunningFree
notdoesNE’stheofonewhenusedistopologyThis
referencesynchronousexternalantoaccesshave
timingwhoseNEantosynchronizedbetoneedsand
LineforprovisionedNEThePRS.atotraceableis
provisionedNEthefromtimingitsderivewillTiming
operatingthustimingMult-Externalfor
NETheNE.respectivethatwithsynchronously
itsusecouldtimingMult-Externalforprovisioned
timingDS1incomingitsdistributetooutputDS1
conservetobaytheinshelvesothertoreference
BITS.theonports
TimingLineMult-External
toaccesshaveNE’sbothwhenusedistopologyThis
Theclocks.BITSfromtimingitsreceivingareand
synchronizedBITSthesehavetoisrecommendation
IfPRS.samethetotraceablearewhichreferencesto
createdsubnetworkthefollowedareguidelinesthese
synchronously.operatingbewouldNE’stwotheseby
inoperatetodesignedaresystemsDDM-2000Note:
outputDS1Thetopologies.timingpleisiochronous
inputthefromregeneratedisNEeachbygenerated
distributetousedbecouldandreferencetimingDS1
sametheincolocatedshelvesothertoreferencethis
BITS.theonportsconservetobay
Mult-ExternalMult-External