10Hot-swapredundantpowersupply2(availableonsomemodels)
11Hot-swapredundantpowersupply1
Thehot-swapredundantpowersupplieshelpyouavoidsignificantinterruptiontotheoperationofthe
systemwhenapowersupplyfails.YoucanpurchaseapowersupplyoptionfromLenovoandinstallthe
powersupplytoprovidepowerredundancywithoutturningofftheserver.
Oneachpowersupply,therearethreestatusLEDsnearthepowercordconnector.Forinformationabout
thestatusLEDs,see“PowersupplystatusLEDs”onpage44.
9Fibercablereleasetool
Afibercablereleasetool(FRUpartnumber00FC501)isattachedtotherearofyourserver.Thistoolhelps
youreleasethefibercablefromthePCIecardwithanopticalmodule.
Usingthefibercablereleasetool
Tousethefibercablereleasetool,dothefollowing:
1.Locatethefibercablereleasetoolandthenremoveitfromtherearoftheserver.
Figure9.Removingthefibercablereleasetool
2.Insertthefibercablereleasetoolunderthefibercablelatch.Then,pressthehandleofthefibercable
releasetooldownwards.
Figure10.Usingthefibercablereleasetool
24ThinkServerRD550UserGuideandHardwareMaintenanceManual
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