Lenovo ThinkPad 40B20135DK User manual

ThinkPad Universal USB-C Dock
ThinkPad Universal USB-C Smart Dock
User Guide

https://www.lenovo.com/sa ety
Note: Be ore using this documentation and the product it supports, ensure that you read and understand
the warranty in ormation in the documentation that comes with the product.
Second Edition (January 2022)
© Copyright Lenovo 2021.
LIMITED AND RESTRICTED RIGHTS NOTICE: I data or so tware is delivered pursuant to a General Services
Administration “GSA” contract, use, reproduction, or disclosure is subject to restrictions set orth in Contract No. GS-
35F-05925.

Contents
Chapter 1. A out the dock . . . . . . . 1
In the box . . . . . . . . . . . . . . . . . . 1
Product overview . . . . . . . . . . . . . . . 2
Chapter 2. Set up the dock . . . . . . . 5
Install the dock . . . . . . . . . . . . . . . . 5
Install the dock driver and irmware . . . . . . . . 5
Install Lenovo Dock Manager . . . . . . . . . . 5
Chapter 3. Use the dock. . . . . . . . . 7
Use the video output connectors . . . . . . . . . 7
Supported resolution . . . . . . . . . . . . 7
Con igure the external displays . . . . . . . . 7
Use the Ethernet connector . . . . . . . . . . . 7
Chapter 4. Trou leshooting . . . . . . . 9
Appendix A. Accessi ility
information . . . . . . . . . . . . . . . 11
Appendix B. Trademarks . . . . . . . 13
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Chapter 1. A out the dock
Thanks or using ThinkPad Universal USB-C Dock / ThinkPad Universal USB-C Smart Dock.
This dock is an enhanced universal compatible module to help you expand your computer with automated
and silent updates. You can use it to connect your computer (Microso t® Windows® 10 only) to a local area
network (LAN) and multiple devices, such as a headset, external displays, and Universal Serial Bus (USB)
devices.
To view the compatible computers,
1. Go to https://support.lenovo.com/us/en/solutions/accs-guide.
2. Select ThinkPad, ThinkCentre, ThinkStation, Ideapad and Ideacentre Option Compati ility Matrix.
Then ollow the on-screen instructions.
In the ox
• ThinkPad Universal USB-C Dock / ThinkPad Universal USB-C Smart Dock
• 90W ac power adapter and power cord
• 1m USB-C® cable
• Documentation
Contact your place o purchase i any item is missing or damaged. Ensure that you retain your proo o
purchase and packing material. They might be required to receive warranty service.
© Copyright Lenovo 2021 1

Product overview
USB-C connector (for connecting computer)
Connect to your computer with the accompanying USB-C cable.
Power connector
Connect to ac power with the accompanying ac power adapter and power cord
DisplayPort® connector
Connect to an external display with a DisplayPort cable.
USB 3.2 connector Gen 2
Connect a compatible device to trans er data at USB 3.2 speed, up to 10 Gbps.
USB 2.0 connector
Connect a USB device, such as mouse.
Cloud indication (* For ThinkPad Universal USB-C Smart Dock only)
Indicates the cloud connection status.
• Solid am er: Disconnected
• Blinking am er (1 second on/off): Connecting
• Solid green: Connected
USB 2.0 connector
Connect a USB device, such as keyboard.
Ethernet connector
Connect to a LAN with an Ethernet cable.
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Always On USB 3.2 connector Gen 2
Connect a compatible device to trans er data or charge with the output voltage and current o up to
5 V and 2.4 A.
HDMITM connector
Connect to an external display with a High- De inition Multimedia Inter ace (HDMI) cable.
Power utton
Press to turn o or turn on the dock.
Security-lock slot
Support cable locks that con orm to the Kensington / Lenovo NanoSaver® lock standards (using
Cleat locking technology).
Security-lock slot
Support cable locks that con orm to the Kensington / Lenovo MicroSaver® lock standards (using T-
bar locking technology) or MiniSaver® lock standards (using CleatTM locking technology).
Audio connector
Connect a headset or headphones with 3.5 mm plug.
Power utton Indication
When the dock is connected to ac power but not your computer, press the dock power button to turn o or
turn on the dock. The indicator on the dock power button shows the dock status:
LED status Dock status
Amber On
O O
When the dock is connected to both your computer and the ac power adapter, the indicator on the dock
power button shows the computer status:
LED status Computer status
Solid white On
Blinking white In sleep mode
Blinking orange Updating driver
O O or in hibernation mode
Statement on USB transfer rate
Depending on many actors such as the processing capability o the host and peripheral devices, ile
attributes, and other actors related to system con iguration and operating environments, the actual trans er
rate using the various USB connectors on this device will vary and will be slower than the data rate listed
below or each corresponding device.
USB device Data rate (G it/s)
3.2 Gen 1 / 3.1 Gen 1 5
3.2 Gen 2 / 3.1 Gen 2 10
3.2 Gen 2 × 2 20
Thunderbolt 3 connector (USB-C) 40
Thunderbolt 4 connector (USB-C) 40
Chapter 1.About the dock 3

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Chapter 2. Set up the dock
Install the dock
Use the accompanying ac power adapter, power cord, and USB-C cable to install the dock. The dock
supplies power to the computer when the dock is connected to ac power and your computer.
Install the dock driver and firmware
The dock driver and irmware is preinstalled on compatible computers and the dock is ready or use a ter you
connect it to ac power and computer.
It is recommended that you update the dock driver and irmware whenever a new version is available to
improve per ormance o the dock.
To update dock irmware:
1. Go to https://www.lenovo.com/support/docks.
2. Select the entry or the dock and then ollow the on-screen instructions to download the irmware.
3. When the indicator on the dock power button turns to solid white, the update is completed. The update
takes e ect when you reconnect the dock to your computer.
Install Lenovo Dock Manager
Lenovo Dock Manager is designed to provide silent irmware update and device in ormation query.
To download Lenovo Dock Manager, go to https://support.lenovo.com/us/en/solutions/ht037099.
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Chapter 3. Use the dock
Use the video output connectors
The dock has three video output connectors to support up to three external displays:
• Two DisplayPort connectors (support DisplayPort 1.4)
• One HDMI connector (supports HDMI 2.0)
Supported resolution
Depending on the USB-C connector or Thunderbolt 3 connector on your computer, the dock supports the
ollowing display resolutions:
• One / two video output connectors: up to 3840 x 2160 pixels / 60 Hz
• Three video output connectors: up to 3840 x 2160 pixels / 30 Hz
To view the maximum display matrix, go to https://support.lenovo.com/us/zh/solutions/pd029622#USB-
C%20dock and select the entry or the dock.
Configure the external displays
You can con igure the external displays connected to your dock:
• Set the display mode: extend, mirror or duplicate, or single display.
• Set the orientation, brightness, resolution, color, and more.
To con igure the external displays:
1. Right-click a blank area on the desktop and select Display settings.
2. Select the display that you want to con igure.
3. Con igure display settings o your pre erence.
For more in ormation, see the Windows help in ormation.
Use the Ethernet connector
You can use the Ethernet connector on the dock to connect your computer to a standard 10 Mbps, 100
Mbps, or 1000 Mbps network with an Ethernet cable.
The Ethernet connector has two network status indicators. When the green indicator is on, the computer is
connected to a LAN. When the yellow indicator blinks, data is being transmitted.
Depending on your computer, some o the ollowing unctions are available when the dock is connected to a
LAN.
• Preboot eXecution Environment
• MAC address Pass Through
• Wake on LAN
• Wake on LAN rom Dock
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To view the unctions supported by your computer, go to https://support.lenovo.com/us/en/solutions/accs-
guide. Select Network function support – Option Compati ility Matrix. Then ollow the on-screen
instructions.
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Chapter 4. Trou leshooting
General
1. The dock does not work after connected to my computer.
Ensure that:
• You use the accompanying ac power adapter, power cord, and USB-C cable.
• The dock is powered by its power adapter. The dock always needs an external power adapter or
operation.
• The dock driver is installed on your computer.
• The USB-C connector on your computer works well.
2. The function of wireless key oard or mouse (2.4 GHz) is interrupted. The mouse pointer lags or
does not move. Some characters are lost when I input y the key oard.
Connect the wireless device receiver to a USB 2.0 connector on the dock.
3. The mouse or key oard cannot wake up my computer when connected to the Always On USB 3.2
connector Gen 2 on the dock.
Connect the mouse or keyboard to a USB 2.0 connector on the dock.
4. The charging speed for my device, such as a smartphone, is slow.
Connect your device to the Always On USB 3.2 connector Gen 2 on the dock.
5. My computer cannot e charged y the dock.
Ensure that:
• You use the accompanying ac power adapter, power cord, and USB-C cable to set up the dock.
• The USB-C connector on your computer supports ac input.
Video output
1. The external display is lank.
• Ensure that:
– Your computer is running correctly and is not in sleep or hibernation mode. When the computer is
in sleep or hibernation mode, the external display is always blank.
– The dock is securely connected to ac power, computer, and external display.
– The dock driver is installed on your computer.
• Reduce the resolution o the external display.
I the problem persists, disconnect all cables rom the dock, and uninstall the dock driver. Then, reinstall
the dock driver and reconnect all cables to the dock. See Chapter 2 “Set up the dock” on page 5.
2. I cannot play ack videos on the external display ut can play them ack on the computer screen.
Some computers do not support High-bandwidth Digital-content Copy Protection (HDCP), so you
cannot play back protected videos on the external display connected to the dock.
To play back videos on the external display, connect the external display to a DisplayPort or HDMI
connector on your computer. Then, set the display mode into extend mode or single-display mode rom
your computer. See “Con igure the external displays” on page 7.
3. The images on the external display flutter.
• Ensure that the display cable is securely connected to the dock.
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• Disconnect and reconnect the display cable.
4. The colors of the images on the external display are not correct.
• Ensure that the display cable is securely connected to the dock.
• Adjust color settings o the external display. See “Con igure the external displays” on page 7.
5. The computer can play ack flash content. However, when I drag the window to the external
display and maximize the window, the play ack stops.
Update your Adobe Flash Player program to the latest version.
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Appendix A. Accessi ility information
Documentation in accessi le formats
Lenovo provides electronic documentation in accessible ormats, such as properly tagged PDF iles or
HyperText Markup Language (HTML) iles. Lenovo electronic documentation is developed to ensure that
visually impaired users can read the documentation through a screen reader. Each image in the
documentation also includes adequate alternative text to explain the image so that visually impaired users
can understand the image when they use a screen reader.
To open and view PDF iles, your computer must have the Adobe Reader program installed. The Adobe
Reader program also is available or download at:
http://www.adobe.com
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Appendix B. Trademarks
LENOVO, the LENOVO logo, THINKPAD®, and the THINKPAD logo are trademarks o Lenovo.
Microso t and Windows are trademarks o the Microso t group o companies.
DisplayPort is a trademark o the Video Electronics Standards Association.
The terms HDMI and HDMI High-De inition Multimedia Inter ace are trademarks or registered trademarks o
HDMI Licensing LLC in the United States and other countries.
USB-C is a trademark o USB Implementers Forum.
All other trademarks are the property o their respective owners. © 2022 Lenovo.
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14 ThinkPad Universal USB-C Dock ThinkPad Universal USB-C Smart Dock User Guide

Part Number: SP41B88172
Printed in China
(1P) P/N: SP41B88172
*1PSP41B88172*