Specifications

Managing Alarms and Events

ATCA-6000 shelf display and alarm indicators

Theshelfdisplaypanel(SDP)ontheATCA‐6000shelfconsistsofthefollowing:

•LCDdisplay

•ShelfPowerLED

•AlarmLEDstoindicateMinor,Major,andCriticalalarms

•AudiblealarmwithanAlarmAcknowledgebutton

TheLCDdisplayontheSDPsupportstwoscrolling40‐characterlinestodisplaytheeightmost

recentalarmsintheDAT.Figure 9onpage 93showsthealarmformatusedontheLCD

display.ThreeseparatealarmLEDsontheSDPindicatethepresenceofcritical,major,and

minoralarmsintheDAT.AnaudiblealarmontheSDPindicatesthehighestseverityalarm.

Telcoalarmcontacts,activeononlytheactiveSPM,indicatecritical,major,andminoralarms.

Unlesstheautomaticcontrolhasbeenoverridenbythesystemmanager,theShelfManager

automaticallycontrolsthedisplayandalarmindicatorsasfollows:

•TurnsontheCritical,Major,orMinorLEDontheSDPwhenitdetectsacritical,major,or

minoralarm.

•TurnsofftheCritical,Major,orMinorLEDontheSDPwhenallcritical,major,orminor

alarmsareremoved.

• Soundsanalarmwhenunacknowledgedalarmsexistinitsdomainalarmtable.

•Stopssoundingthealarmwhenallalarmshavebeenacknowledged.

•AcknowledgesallalarmsinititsdomainalarmtablewhentheAlarmAcknowledgebutton

ispressedandreleasedtwicewithin3seconds.

• Sendsaneventtothesystemmanagerinterface(HPI)whentheAlarmAcknowledge

buttonispressedandreleasedtwicewithin3seconds.

IftheAlarmAcknowledgebuttonispres sedformorethan3 seconds,theShelfManager

graduallyreducesthecontrastontheLCDdisplayuntilthebuttonisreleased.Ifthelowest

contrastsettingisreachedandthebuttonhasnotbeenreleased,theShelfManagersets

thecontrasttoitshighestlevelbeforecontinuingtoreduceit.Thecyclecontinuesuntil

thebuttonisreleased.

•Displaysthe

message“SystemNormal”ontheSDPiftherearenoAlarmsinitsdomain

alarmtable.

•Displaysthelast8AlarmsinthedomainalarmtableontheSDP.Theformatofthe

messagesisshowninFigure 9.Themessagesarescrolledupatarateof1secondperrow.

ThetelcoalarmoutputsarecontrolledbytheShelfManager,butprovidethecapabilityfor

thesystemmanagertooverridethestateofthealarmcontacts.