Lenovo System x3550 M4 - Page 264

Statement34
CAUTION:
Toreducetheriskofelectricshockorenergyhazards:
•Thisequipmentmustbeinstalledbytrainedservicepersonnelinarestricted-accesslocation,
asdefinedbytheNECandIEC60950-1,FirstEdition,TheStandardforSafetyofInformation
TechnologyEquipment.
•Connecttheequipmenttoaproperlygroundedsafetyextralowvoltage(SELV)source.ASELV
sourceisasecondarycircuitthatisdesignedsothatnormalandsinglefaultconditionsdonot
causethevoltagestoexceedasafelevel(60Vdirectcurrent).
•Incorporateareadilyavailableapprovedandrateddisconnectdeviceinthefieldwiring.
•Seethespecificationsintheproductdocumentationfortherequiredcircuit-breakerratingfor
branchcircuitovercurrentprotection.
•Usecopperwireconductorsonly.Seethespecificationsintheproductdocumentationforthe
requiredwiresize.
•Seethespecificationsintheproductdocumentationfortherequiredtorquevaluesforthe
wiring-terminalscrews.
Important:BesuretoreadthemultilingualsafetyinstructionsontheCDthatcomeswiththeserver
beforeyouusetheproduct.
Toremoveahot-swapdcpowersupply,completethefollowingsteps:
Step1.Readthesafetyinformationthatbeginson“Safety”onpagevand“Installationguidelines”
onpage31
.
Step2.Ifonlyonepowersupplyisinstalled,turnofftheserverandperipheraldevicesanddisconnect
allpowercords.
Step3.Iftheserverisinarack,atthebackoftheserver,pullbackthecablemanagementarmtogain
accesstotherearoftheserverandthepowersupply.
Step4.Pressandholdthereleasetabtotheleft.Graspthehandleandpullthepowersupplyoutof
theserver.
250Systemx3550M4InstallationandServiceGuide