Datasheet

AR/GE/FE/U80/80XInstallationManual
31 58000519rev.D
3.3
3.0
2.0
1.7
0.3
NO
ERRORS
CORRECTED
ERRORS
UNCORRECTED
ERRORS
CorrectableErrorsDetected
UncorrectableErrorsDetected
DeframerUnlocked(LinkDown)
0 0 Errors
QUALVoltage(VDC)
0.0
Figure3.10.32: QualityVoltageGraph
· QualityVoltagesbetween3.0Vand3.3VindicatePREandPOSTFECerrorfreewireless
link.
· QualityVoltagesbetween2.0Vand3.0Vindicatealowrateoferrorsthattheforwarderror
correctionwillcorrect.Thelowerthevoltage,themoreerrorsarebeingcorrected.
· QualityVoltagesbetween0.3Vand1.7VindicateexcessivePREFECerrorsinthewireless
link,someofwhichcannotbecor rectedbytheFEC.Toindicatethischangeinerror
performance,thequalityvoltagewilldropfrom2.0Vto1.7V inasinglestep.
· QualityVoltagesbelow0.3Vindicateanunlockeddeframercondition.Thisw illbe
recognizedasalinkdowncondition.