TP-LINK WN781ND User guide
Rev: 3.1.0
191001
TL-WN781ND
150Mbps Wireless N PCI Express Adapter
1593
COPYRIGHT & TRADEMARKS
Specifications are subject to change without notice.
TP-LINK TECHNOLOGIES CO., LTD. Other brands and product names are trademarks or
registered trademarks of their respective holders.
No part of the specifications may be reproduced in any form or by any means or used to make
any derivative such as translation, transformation, or adaptation without permission from
TP-LINK TECHNOLOGIES CO., LTD. Copyright © 2016 TP-LINK TECHNOLOGIES CO., LTD.
All rights reserved.
http://www.tp-link.com
is a registered trademark of
FCC STATEMENT
This equipment has been tested and found to comply with the limits for a Class B digital device,
pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable
protection against harmful interference in a residential installation. This equipment generates,
uses and can radiate radio frequency energy and, if not installed and used in accordance with
the instructions, may cause harmful interference to radio communications. However, there is no
guarantee that interference will not occur in a particular installation. If this equipment does
cause harmful interference to radio or television reception, which can be determined by turning
the equipment off and on, the user is encouraged to try to correct the interference by one or
more of the following measures:
• Reorient or relocate the receiving antenna.
• Increase the separation between the equipment and receiver.
• Connect the equipment into an outlet on a circuit different from that to which the
receiver is connected.
• Consult the dealer or an experienced radio/ TV technician for help.
This device complies with part 15 of the FCC Rules. Operation is subject to the following two
conditions:
1） This device may not cause harmful interference.
2） This device must accept any interference received, including interference that may
cause undesired operation.
Any changes or modifications not expressly approved by the party responsible for compliance
could void the user’s authority to operate the equipment.
Note: The manufacturer is not responsible for any radio or TV interference caused by
unauthorized modifications to this equipment. Such modifications could void the user’s authority
to operate the equipment.
FCC RF Radiation Exposure Statement:
This equipment complies with FCC RF radiation exposure limits set forth for an uncontrolled
environment. This device and its antenna must not be co-located or operating in conjunction
with any other antenna or transmitter.
“To comply with FCC RF exposure compliance requirements, this grant is applicable to only
Mobile Configurations. The antennas used for this transmitter must be installed to provide a
separation distance of at least 20 cm from all persons and must not be co-located or operating
in conjunction with any other antenna or transmitter.”
CE Mark Warning
This is a class B product. In a domestic environment, this product may cause radio interference,
in which case the user may be required to take adequate measures.
RF Exposure Information
This device meets the EU requirements (1999/5/EC Article 3.1a) on the limitation of exposure of
the general public to electromagnetic fields by way of health protection.
This device has been tested and meets the ICNIRP exposure guidelines and the European
Standard EN 62209-2. SAR is measured with this device at a separation of 0.5 cm to the body,
while transmitting at the highest certified output power level in all frequency bands of this device.
Carry this device at least 0.5 cm away from your body to ensure exposure levels remain at or
below the as-tested levels.
Canadian Compliance Statement
This device complies with Industry Canada license-exempt RSS standard(s). Operation is
subject to the following two conditions:
(1) This device may not cause interference, and
(2) This device must accept any interference, including interference that may cause undesired
operation of the device.
Cet appareil est conforme aux norms CNR exemptes de licence d’Industrie Canada. Le
fonctionnement est soumis aux deux conditions suivantes:
(1) cet appareil ne doit pas provoquer d’interférences et
(2) cet appareil doit accepter toute interférence, y compris celles susceptibles de provoquer un
fonctionnement non souhaité de l’appareil.
This device has been designed to operate with the antennas listed below, and having a
maximum gain of 2 dBi. Antennas not included in this list or having a gain greater than 2 dBi are
strictly prohibited for use with this device. The required antenna impedance is 50 ohms.
To reduce potential radio interference to other users, the antenna type and its gain should be so
chosen that the equivalent isotropically radiated power (e.i.r.p.) is not more than that permitted
for successful communication.
Industry Canada Statement
Complies with the Canadian ICES-003 Class B specifications.
Cet appareil numérique de la classe B est conforme à la norme NMB-003 du Canada.
This device complies with RSS 210 of Industry Canada. This Class B device meets all the
requirements of the Canadian interference-causing equipment regulations.
Cet appareil numérique de la Classe B respecte toutes les exigences du Règlement sur le
matériel brouilleur du Canada.
Korea Warning Statements
당해 무선설비는 운용중 전파혼신 가능성이 있음.
NCC Notice & BSMI Notice
注意！
依據 低功率電波輻射性電機管理辦法
第十二條 經型式認證合格之低功率射頻電機，非經許可，公司、商號或使用者均不得擅自變更頻
率、加大功率或變更原設計之特性或功能。
第十四條 低功率射頻電機之使用不得影響飛航安全及干擾合法通行；經發現有干擾現象時，應立
即停用，並改善至無干擾時方得繼續使用。前項合法通信，指依電信規定作業之無線電信。低功
率射頻電機需忍受合法通信或工業、科學以及醫療用電波輻射性電機設備之干擾。
減少電磁波影響，請妥適使用。
安全諮詢及注意事項
●請使用原裝電源供應器或只能按照本產品注明的電源類型使用本產品。
●清潔本產品之前請先拔掉電源線。請勿使用液體、噴霧清潔劑或濕布進行清潔。
●注意防潮，請勿將水或其他液體潑灑到本產品上。
●插槽與開口供通風使用，以確保本產品的操作可靠並防止過熱，請勿堵塞或覆蓋開口。
●請勿將本產品置放於靠近熱源的地方。除非有正常的通風，否則不可放在密閉位置中。
●請不要私自打開機殼，不要嘗試自行維修本產品，請由授權的專業人士進行此項工作。
Продукт сертифіковано згідно с правилами системи УкрСЕПРО на відповідність вимогам
нормативних документів та вимогам, що передбачені чинними законодавчими актами
України.
e selective sorting symbol for Waste electrical and electronic
equipment (WEEE). This means that this product must be handled pursuant to
European directive 2012/19/EU in order to be recycled or dismantled to minimize
s the choice to give his product to a competent recycling organization or to
Safety Information
When product has power button, the power button is one of the way to shut off the product;
when there is no power button, the only way to completely shut off power is to disconnect the
product or the power adapter from the power source.
Don’t disassemble the product, or make repairs yourself. You run the risk of electric shock
and voiding the limited warranty. If you need service, please contact us.
Avoid water and wet locations.
Explanation of the symbols on the product label
Symb ol Explanation
DC voltage
RECYCLING
This product bears th
its impact on the environm ent.
User ha
the retailer when he buys a new electrical or electronic equipment.
DECLARATION OF CONFORMIT Y
For the following equipment:
Product Description: 150Mbps Wireless N PCI Express Adapter
Model No.: TL-WN781ND
Trademark: TP-LINK
We declare under our own responsibility that the above products satisfy all the technical
regulations applicable to the product within the scope of Council Directives:
Directives 1999/5/EC, Directives 2011/65/EU
The above product is in conformity with the following standards or other normative documents:
EN 300328 V1.9.1
EN 301489-1 V1.9.2 & EN 301489-17 V2.2.1
TP-LINK TECHNOLOGIES CO., LTD
EN 60950-1: 2006 + A11: 2009 + A1: 2010 + A12: 2011+A2 : 2013
EN 62311: 2008
EN 50581: 2012
The product carries the CE Mark:
Person responsible for making this declaration:
Yang Hongliang
Product M anager of International Business
Date of issue: 2016.1.19
TP-LINK TEC HNOLO GIES CO., LTD.
Building 24 (floors 1, 3, 4, 5), and 28 (floors 1-4) Central Science and Technology Park,
Shennan Rd, Nanshan, Shenzhen, China
CONTENTS
Chapter 1
Product Overview ............................................................................................1
1.1 Introduction ............................................................................................................ 1
1.2 Features ................................................................................................................ 1
1.3 LED status ............................................................................................................. 1
Chapter 2 Connect to a Computer..................................................................................2
Chapter 3 Install driver and utility ..................................................................................3
Chapter 4 Join a Wireless Network ................................................................................7
4.1 TP-LINK Utility ....................................................................................................... 7
4.2 WPS (Wi-Fi Protected Setup)................................................................................. 8
4.3 Windows Wireless Utility ...................................................................................... 11
Chapter 5 Management .................................................................................................. 13
5.1 Status .................................................................................................................. 13
5.2 Profile .................................................................................................................. 13
5.3 Advanced............................................................................................................. 16
5.4 SoftAP (For Windows 7 only) ............................................................................... 16
5.5 About ................................................................................................................... 17
Chapter 6 Uninstall driver and utility.......................................................................... 18
Appendix A: Specifications ............................................................................................. 19
Appendix B: Glossary ....................................................................................................... 20
TL-WN781ND
150Mbps Wireless N PCI Expre ss Adapter User Guide
Chapter 1 Product Overview
1.1 Introduction
The TP-LINK TL-WN781ND 150Mbps Wireless N PCI Express Adapter connects your desktop
computer to a Wi-Fi network for lag-free video streaming, online gaming, secure Internet surfing
and Internet calls.
1.2 Features
Complies with IE EE 802.11n, IEEE 802.11g, IEEE 802.11b, IEEE 802.11e, IEE E 802.11i
standards
Supports WEP, WPA/W PA2, WPA/WPA2-PSK data security, IEEE802.1x authentication,
TKIP/AES encryption
Supports high rate of up to 150Mbps for maximum throughput, supports automatically
adjust to lower speeds due to distance or other operating limitations
Provides 32-bit PCI Express interface
Supports Ad Hoc and Infrastructure modes
Good capability on anti-jamming
Supports roaming between access points when configured under Infrastructure mode
Easy to configure and provides monitoring information
Supports Windows XP/ Vista/7/8/8.1/10
1.3 LED status
Status Working Status
The driver has not been installed;
Off
Flashing Slowly The driver has been installed but no data is being transmitted or received.
Flashing Quickly Data is being transmitted or received.
The adapter's radio has been disabled.
1
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