
Anindicatortotheleftoftheconnectorshowsthestatusofacpower.Whentheacpoweradapteris
connected,theindicatorison.Ifabatteryisinstalledinthecomputer,theindicatorisgreenwhenthe
batterycharges.
DANGER
Toavoidtheriskofelectricalshock,donotconnectthetelephonecabletotheEthernetconnector.
YoucanonlyconnectanEthernetcabletothisconnector.
6Comboaudiojack
Tolistentothesoundfromyourcomputer,connectaheadphoneoraheadset,thathasa3.5mm4-pole
plug,tothecomboaudiojack.
Notes:
•Ifyouareusingaheadsetwithafunctionswitch,forexample,aheadsetforaniPhonemobiledigital
device,donotpressthisswitchwhileusingtheheadset.Ifyoupressit,theheadsetmicrophonewill
bedisabled,andtheinternalmicrophonewillbeenabledinstead.
•Thecomboaudiojackdoesnotsupportaconventionalmicrophone.Formoreinformationaboutthe
audiodevicessupportedbythecomboaudiojack,see“Usingaudiofeatures”onpage45.
Bottomview
Figure4.ThinkPadX121ebottomview
1Battery
2SIMcardslot
3Memoryslot4WWANcardslot
5WLANcardslot6Harddiskdriveorsolidstatedriveslot
1Battery
Useyourcomputerwithbatterypowerwheneveracpowerisunavailable.
YoucanusePowerManagertoadjustyourpowersettingasneeded.Fordetails,refertotheinstructionsin
“PowerManager”onpage19
.
Chapter1.ProductOverview7
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