Lucent Technologies DDM-2000 OC-12 - Page 1568

DLP-544 363-206-295
1997December1,Issue2of2Page
1.FigureinshownasequipmenttestandshelfDDM-2000theConfigure
DS3/DS1
ERTS
OPTICAL
OUTPUT
(TX)
DDM-2000
OPTICAL
ATTENUATOR
OPTICAL
SPLITTER
OPTICAL
POWER
METER
OPTICAL
INPUT
(RX)
LOW
SPEED
INPUT
LOW
SPEED
OUTPUT
ConfigurationTestSensitivityReceiverDDM-20001.Figure
opticalonreadinglevelpowerobtaintoattenuatoropticalvariableSet2.
A.Tablefromrequiredasmeterpower
OC-12forSettingsPowerOpticalVariableA.Table
LevelsPowerOLIUOC-12
(dBm)LevelPowerOLIU
23H, 23H-U −34
23G, 23G-U −31
21G, 21G-U, 21G2-U −34
21D, 21D-U − Env.)-31.8(Uncont.Env.)33.8(Cont.
TestRateErrorDS1/DS3thewithsignalreceivedDS1/DS3theMonitor3.
10ofresult(BER)rateerrorbitainsureandminutes30forSet
−10
or
better.
Did4. OLIU test?BERpass
If YES then, PROCEDURE.THISCOMPLETEDHAVEYOUSTOP.
If NO withcontinuethen, 5Step .
failstestIftest.repeatandconnectorsandattenuatorsopticalClean5.
replaceagain, OLIU.