Lenovo x3550 M5 - Page 218

•Seethespecificationsintheproductdocumentationfortherequiredtorquevaluesforthe
wiring-terminalscrews.
Important:Beforeyouusetheproduct,besuretoreadthemultilingualsafetyinstructionsat:
https://support.lenovo.com/documents/LNVO-DOCS
Toinstallahot-swapdcpowersupply,completethefollowingsteps:
Attention:OnlytrainedservicepersonnelotherthanLenovoservicetechniciansareauthorizedtoinstall
andremovethe-48voltdcpowersupply,andmaketheconnectionstoanddisconnectionsfromthe-48
voltdcpowersource.Lenovoservicetechniciansarenotcertifiedorauthorizedtoinstallorremovethe
-48voltpowercable.Thecustomerisresponsibleforensuringthatonlytrainedservicepersonnelinstallor
removethe-48voltpowercable.
Step1.Readthesafetyinformationthatbeginson“Safety”onpagevand“Installationguidelines”on
page116
.
Step2.Touchthestatic-protectivepackagethatcontainsthehot-swappowersupplytoanyunpainted
metalsurfaceontheserver;then,removethepowersupplyfromthepackageandplaceiton
astatic-protectivesurface.
Step3.Turnoffthecircuitbreakerforthedcpowersourcetowhichthenewpowersupplywillbe
connected.Disconnectthepowercordfromthedcpowersource.
Step4.Attachthedcpowercabletothenewpowersupply.
Power input LED
Power output LED
Power error LED
-48V
Ground-48V return
Figure121.dcpowersupplyrearview
Step5.Ifyouareinstallingahot-swappowersupplyintoanemptybay,removethepower-supplyfiller
fromthepower-supplybay.
204LenovoSystemx3550M5InstallationandServiceGuide