Lenovo ThinkPad T420si (English) User Guide - Page 154

ThinkPad Mini Dock Plus Series 3 and ThinkPad Mini Dock Plus Series 3 170 W

Page 154 highlights

ThinkPad Mini Dock Plus Series 3 and ThinkPad Mini Dock Plus Series 3 (170 W) 1 The power switch turns the computer on and off. 2 The key lock indicator lights when the system lock key is in the locked position. When the system lock key is in the locked position, the eject button of the ThinkPad Mini Dock Plus Series 3 or ThinkPad Mini Dock Plus Series 3 (170 W) is locked; you cannot attach or remove your computer. 3 The docking indicator lights when your computer is docked. 4 The eject button releases the computer from the ThinkPad Mini Dock Plus Series 3 or ThinkPad Mini Dock Plus Series 3 (170 W) when pressed. 5 The sliding adjuster is a guide up the docking connector on your computer as you attach the ThinkPad Mini Dock Plus Series 3 or the ThinkPad Mini Dock Plus Series 3 (170 W). 6 The docking connector is where you attach your computer. 7 The system lock key is for locking the eject button. 8 The microphone jack, a jack 1/8 inch (3.5 mm) in diameter, is for connecting an external microphone. 9 The headphone jack, a jack 1/8 inch (3.5 mm) in diameter, is for connecting an external stereo headphone. 138 User Guide

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ThinkPad Mini Dock Plus Series 3 and ThinkPad Mini Dock Plus Series 3 (170 W)
1
The
power switch
turns the computer on and off.
2
The
key lock indicator
lights when the system lock key is in the locked position. When the system lock
key is in the locked position, the eject button of the ThinkPad Mini Dock Plus Series 3 or ThinkPad Mini Dock
Plus Series 3 (170 W) is locked; you cannot attach or remove your computer.
3
The
docking indicator
lights when your computer is docked.
4
The
eject button
releases the computer from the ThinkPad Mini Dock Plus Series 3 or ThinkPad Mini
Dock Plus Series 3 (170 W) when pressed.
5
The
sliding adjuster
is a guide up the docking connector on your computer as you attach the ThinkPad
Mini Dock Plus Series 3 or the ThinkPad Mini Dock Plus Series 3 (170 W).
6
The
docking connector
is where you attach your computer.
7
The
system lock key
is for locking the eject button.
8
The
microphone jack
, a jack 1/8 inch (3.5 mm) in diameter, is for connecting an external microphone.
9
The
headphone jack
, a jack 1/8 inch (3.5 mm) in diameter, is for connecting an external stereo headphone.
138
User Guide