Rearview
Figure5.ThinkPadT420/T420irearview.
1ModemconnectororIEEE13942AlwaysOnUSBconnector(rear)
3Powerjack4Fanlouvers(rear)
1ModemconnectororIEEE1394
•Ifyourcomputerhasamodemconnector,connectyourcomputertoatelephonelinewiththemodem
connector.Fordetails,refertotheinstructionsin“Dialupconnections”onpage68.
•IfyourcomputerhasanIEEE1394connector,whichisusedforconnectingdevicesthatarecompatible
withtheIEEE1394interface,suchasdigitalvideocamerasandexternalharddiskdrives.
Note:Dependingonyourmodel,yourcomputermighthaveneithermodemconnectornorIEEE1394
connector.
2AlwaysOnUSBconnector(rear)
TheAlwaysOnUniversalSerialBusconnectorisusedforconnectingdevicescompatiblewithaUSB
interface,suchasaprinteroradigitalcamera.
Bydefault,evenifyourcomputerisinsleep(standby)mode,theAlwaysOnUSBconnectorstillenables
youtochargesomedevices,suchasiPod®,iPhone,andBlackBerry®smartphones,byattachingthe
devicestotheconnect or.
However,withtheacpoweradapterattached,ifyouwanttochargethesedeviceswhenyourcomputer
isinhibernationmodeorpoweredoff,youwillneedtoopenthePowerManagerprogramandcongur e
correspondingsettingstoenabletheAlwaysOnUSBconnectorfunction.Fordetailsabouthowtoenable
theAlwaysOnUSBconnectorfunction,refertotheon-linehelpofthePowerManagerprogram.
Note:YourcomputeriscompatiblewithUSB1.1and2.0.
3Powerjack
Theacpoweradaptercableconnectstothecomputerpowerjacktoprovidepowertothecomputerand
chargethebattery.
10UserGuide