AI-Link WF-R31B-UWD1 Wi-Fi Wireless User Manual

AI-Link WF-R31B-UWD1 Wi-Fi Wireless

Product Information

Specifications:

• Model: WF-R31B-UWD1
• Wireless LAN Standard: IEEE 802.11 a/b/g/n
• WIFI Module: SoC RTL8731BU
• Data Rate: Up to 150Mbps
• Bandwidth: 20MHz, 40MHz in 2.4GHz, 5GHz band

Product Usage Instructions

1. Installation:

Ensure the WF-R31B-UWD1 module is securely connected to the USB port of your device.

2. Connection:

Turn on your device and navigate to the wireless settings.\ Locate the WF- R31B-UWD1 network and connect by entering the appropriate credentials.

3. Software Setup:

Install any necessary drivers for the WF-R31B-UWD1 module on your device. Follow the instructions provided in the software manual for proper installation.

4. Usage:

Once connected, you can now enjoy wireless internet access through the WF- R31B-UWD1 module. Make sure to position your device within the range of the wireless signal for optimal performance.

Frequently Asked Questions

• Q: What is the maximum data rate supported by the WF-R31B-UWD1 module?
  • A: The WF-R31B-UWD1 module supports a maximum data rate of up to 150Mbps.
• Q: How can I install the necessary drivers for the WF-R31B-UWD1 module?
  • A: To install the drivers, please refer to the software manual provided with the module. Follow the step-by-step instructions for a successful installation.
• Q: What wireless standards are supported by the WF-R31B-UWD1V module?
  • A: The WF-R31B-UWD1 module is compatible with IEEE 802.11 a/b/g/n wireless standards.

Product Information

The information and data contained herein is subject to change without notice. While every possible precaution has been taken in the production of this document, it may still contain technical inaccuracies, omissions, and typographical errors, and AI-Link, the document owner, is under no obligation to update or otherwise correct this information. Sichuan AI-Link Technology Co., Ltd. makes no representations or warranties concerning the accuracy or completeness of the contents of this document and assumes no liability of any kind, including the implied warranties of non-infringement, merchantability, or fitness for purposes, concerning the operation or use of AI-Link hardware, software or other products described herein. No license to any intellectual property rights is granted by this document. Terms and limitations applicable to the purchase or use of AI-Link’s products are outlined in a signed agreement between the parties or AI-Link’s standard terms and conditions of sales. Any unauthorized copying, alteration, distribution, transmission, performance, display, or other use of this document is strictly prohibited. Reverse engineering or disassembly is also prohibited

Trademarks

are trademarks of Sichuan AI-Link Technology Co., Ltd. Other product names used in this document are for identification purposes only and may be trademarks of their respective companies or entities.

Below Space Intentionally Left Blank for Customer Confirmation or Comments

Typed Name

|

Signature

|

Date

| |
Please sign and return this page and the front page to our company by email or fax, or by courier to the following address:

Address： Anzhou Industrial Park, Mianyang, Sichuan, P.R.C Company： Sichuan AI- Link Technology Co., Ltd.

Module Name

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WF-R31B- UWD1

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Designed by

|

Reviewed by

|

Approved by

Signature

|

Qin, Dakai

|

Fan, Xijun

|

Feng, Yi

Date

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28/8/2023

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28/8/2023

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28/8/2023

Model WF-R31B-UWD1

• Compatible WLAN Standards
  • IEEE Std. 802.11 a/b/g/n
• SoC
  • RTL8731BU
• Product Size
  • 47.0mm×30.0mm×6.0mm

Contact

• Sichuan AI-Link Technology Co., Ltd.
• Anzhou Industrial Park, Mianyang, Sichuan, P.R.C
• +86-0816-2438701
• http://www.ailinkiot.com
• ai-link@ailinkiot.com

Features

WLAN

• IEEE 802.11 a/b/g/n compliant
• Support 20MHz, 40MHz bandwidth in 2.4GHz, 5GHz band
• Dual bands 1T1R mode
• data rate up to 150Mbps with USB2.0
• two ant design

Revision Record

General Description

System Overview

Model WF-R31B-UWD1 is a highly integrated WiFi module by AI-Link, based on the Realtek SoC RTL8731BU, featuring a 1×1 a/b/g/n dual-band Wi-Fi. The finely tuned hardware architecture and baseband algorithms provide superlative RF performance, as well as low power consumption. Intelligent MAC design powers a highly efficient offload engine; the hardware supports standard features of higher level of security, performance, and conforms most international regulations, offering the great performance at any time, in any circumstance.

System Properties

5 GHz：5.150~5.850GHz

Antenna| IPEX Connector and Internal Antenna
Operating Voltage| 3.3V±10%
PCB

Information

| 2-layers design (1.0+/-0.10mm)
Peripheral Interface| USB 2.0

Rate

| 11b: 1, 2, 5.5 and 11Mbps

11a/g: 6, 9, 12, 18, 24, 36, 48 and 54 Mbps

11n:   MCS0~7, up to 150Mbps

Operating Temperature| -0℃ to +70℃
Storage Temperature| -40℃ to +80℃
ESD

Protection

| IEC(Contact discharge)：±2000V

Diagram

The hardware architecture for the module is shown in Figure 1. The AI-Link’s WF-R31B-UWD1 module Complies with IEEE standards 802.11a/b/g/n; it also supports 1T1R and could reach up to data rate of 150 Mbps.

Mechanical Dimensions

Mechanical Outline Drawing

• Typical Dimension (W x L x T): 47.0mmx 30.0mm x 6.0mm
• General tolerance: ±0.2mm
• PCB Thickness: 1.0mm (+/-0.10mm)

Pin definitions

Product Photos

Label Information

• WIFI MAC information code
• AI-LINK logo
• Model：WF-R31B-UWD1/AL-8731B-WG-A
• WIFI Mac:FFFFFFFFFFFF（Example）
• FCC ID：2AOKI-AL8731B
• IC ID：23460-AL8731B

RF Characteristics

Wi-Fi Subsystem

WLAN

Standard

| IEEE 802.11a/b/g/n
Frequency Range| 2.400 GHz ~ 2.4835 GHz (2.4 GHz)
5.15 GHz~5.85 GHz (5 GHz)

Channels

| CH1 to CH13 for CE@SRRC @ 2.4G

CH1 to CH11 for FCC@IC @ 2.4G

CH36 to CH165 @ 5G
Modulation Mode| 802.11b: DBPSK, DQPSK ,CCK
802.11 a/g/n: BPSK, QPSK, 16QAM, 64QAM

Output Power & EVM

| Power Value| EVM
802.11b /11Mbps: 20.0 ± 2.0dBm| ≤ -10dB
802.11g /54Mbps: 19.0 ± 2.0dBm| ≤ -25dB
802.11a /54Mbps: 18.0 ± 2.0dBm| ≤ -25dB
802.11n HT20 /MCS7: @2.4G 18.0 ± 2.0dBm| ≤ -28dB
802.11n HT20 /MCS7: @5G 16.0 ± 2.0dBm| ≤ -28dB
802.11n HT40 /MCS7: @2.4G 18.0 ± 2.0dBm| ≤ -28dB
802.11n HT40 /MCS7: @5G 16.0 ± 2.0dBm| ≤ -28dB

Receiver Sensitivity @2.4G PER≤ 10%

@5G PER≤ 10%

| Rate Type| Max
802.11b /11Mbps @2.4G   PER≤8%| -83dBm
802.11g /54Mbps @2.4G| -71dBm
802.11a /54Mbps @5G| -71dBm
802.11n HT20 /MCS7 @2.4G| -69dBm
802.11n HT20 /MCS7 @5G| -69dBm
802.11n HT40 /MCS7 @2.4G| -66dBm
802.11n HT40 /MCS7 @5G| -66dBm

Interface

USB Interface

The module supports the USB (USB v2.0 specification) device port, Use USB as the host interface for Bluetooth.

Software Information

RF Driver

MP_Kit_RTL11n_8733BU_USB_v0.43r2 or later

RF Connector Dimension

Package, Storage & Disposal

1. The product placement direction, label pasting position and packaging shall be carried out according to the schematic diagram;
2. Put 2 bags of 2G desiccant and a humidity card in the packing box;
3. The number of products is 25 in each layer, with an empty tray on the upper layer. Each box contains 4 boxes, totaling 1600pcs, and each box contains 400pcs products
4. Outer box size: 499mm 394mm 298mm;
5. Other matters not covered shall be implemented according to the customer’s packaging requirements.

Storage

All electronic components must be stored in a clean, well-ventilated place free of corrosive gas. Unless otherwise specified, the temperature and humidity of the storage place must meet below requirements:

• Temperature：-30~85℃；
• Humidity：20%~75%；
• Humidity sensitivity grade： MSL 3
• Container Requirement: products shall be placed in a container well-functioning as an electrostatic shielding.

Disposal

The waste disposal of this product and the package should comply with the applicable local/regional /state/ international regulations.

Antenna specification

ANT| NO.| Type| Antenna

Project Code

| Part No. & manufacturer| Gain
---|---|---|---|---|---

Ant1

| 1| ****

External PIFA

Antenna

| ****

PIFA Antenna

| TX-DM*BD113B63M B&T| 2.4G:2.18dBi

5G:4.33dBi

2| TX-DM*BD113Y63M Yishengbang| 2.4G:4.29dBi

5G:4.55dBi

3| TX-DM*BD113Y63M Jiexuntong| 2.4G:3.92dBi

5G:2.66dBi

4| ****

TX-DM*BD113JH63M JINGHONG

| 2.4G:2.72dBi

5G:1.51dBi

Ant2

| ****

1

| Onboard PIFA

Antenna

| ****

Metal Antenna

| ****

RFMTA170900NNLB003 walsin

| 2.4G:3.68dBi

5G:2.88dBi

Authentication

FCC Radiation Exposure Statement

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, and
2. this device must accept any interference received, including interference that may cause undesired operation.

Warning: changes or modifications not expressly approved by the party responsible for compliance could void the user’s authority to operate the equipment. This Module complies with FCC radiation exposure limits set forth for an uncontrolled environment. This equipment should be installed and operated with a minimum distance of 20cm between the radiator and your body. This transmitter must not be co-located or operating in conjunction with any other antenna or transmitter. Labelling Instruction for Host Product Integrator Please notice that if the FCC identification number is not visible when the module is installed inside another device, then the outside of the device into which the module is installed must also display a label referring to the enclosed module. This exterior label can use wording such as the following: “Contains FCC ID: 2AOKI-AL8731B” any similar wording that expresses the same meaning may be used. Installation Notice to Host Product Manufacturer The OEM integrator is responsible for ensuring that the end-user has no manual instruction to remove or install the module. The module is limited to installation in mobile applications, a separate approval is required for all other operating configurations, including portable configurations with respect to §2.1093 and difference antenna configurations. Antenna Change Notice to Host manufacturer If you desire to increase antenna gain and either change antenna type or use same antenna type certified, a Class II permissive change application is required to be filed by us, or you (host manufacturer) can take responsibility through the change in FCC ID (new application) procedure followed by a Class II permissive change application. FCC other Parts, Part 15B Compliance Requirements for Host product manufacturer This modular transmitter is only FCC authorized for the specific rule parts listed on our grant, host product manufacturer is responsible for compliance to any other FCC rules that apply to the host not covered by the modular transmitter grant of certification. Host manufacturer in any case shall ensure host product which is installed and operating with the module is in compliant with Part 15B requirements. Note: 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.

Integration instructions for host product manufacturers according to KDB 996369 D03 OEM Manual v01

List of applicable FCC rules

• FCC Part 15 Subpart C 15.247
• FCC Part 15 Subpart C 15.407

Specific operational use conditions

The module is a WIFI Module with 2.4G&5G function.

WiFi Specification：

Operation Frequency:

• 2412~2472MHz; 5180~5240MHz; 5260~5320MHz; 5500~5720MHz; 5745~5825MHz.

Modulation:

• BPSK/QPSK/16QAM/64QAM(802.11a)
• DBPSK/DQPSK/CCK(802.11b)
• BPSK/QPSK/16QAM/64QAM(802.11g)
• BPSK/QPSK/16QAM/64QAM(802.11n)
• Type: one is PIFA Antenna and another one is Metal Antenna
• Maximum PIFA Antenna gain: 4.29dBi@2.4G;4.55dBi@5G
• Maximum Metal Antenna gain: 3.68dBi@2.4G;2.88dBi@5G

The host manufacturer installing this module into their product must ensure that the final composite product complies with the FCC requirements by a technical assessment or evaluation to the FCC rules, including the transmitter operaition. The host manufacturer has to be aware not to provide information to the end user regarding how to install or remove this RF module in the user’s manual of the end product which integrates this module. The end user manual shall include all required regulatory information/warning as show in this manual.

Limited module procedures

Not applicable.

Trace antenna designs

Not applicable. The module has its own antenna and doesn’t need a host’s printed board microstrip trace\ antenna etc.

RF exposure considerations

The module must be installed in the host equipment such that at least 20cm is maintained between the antenna and users’ body; and if RF exposure statement or module layout is changed, then the host product manufacturer required to take responsibility of the module through a change in FCC ID or new application. The FCC ID of the module cannot be used on the final product. In these circumstances, the host manufacturer will be responsible for re- evaluating the end product (including the transmitter) and obtaining a separate FCC authorization

Antennas

Antenna Specification are as follows: Type: one is PIFA Antenna and another one is a Metal Antenna

ANT

|

NO.

|

Type

| Antenna Project

Code

|

Part No. & manufacturer

|

Gain

---|---|---|---|---|---

Ant1

| 1|

External PIFA

Antenna

|

PIFA

Antenna

| TX-DM*BD113B63M B&T| 2.4G:2.18dBi

5G:4.33dBi

2| TX-DM*BD113Y63M Yishengbang| 2.4G:4.29dBi

5G:4.55dBi

3| TX-DM*BD113Y63M Jiexuntong| 2.4G:3.92dBi

5G:2.66dBi

4| TX-DM*BD113JH63M JINGHONG| 2.4G:2.72dBi

5G:1.51dBi

Ant2

|

1

| Onboard PIFA

Antenna

| Metal Antenna|

RFMTA170900NNLB003 walsin

| 2.4G:3.68dBi

5G:2.88dBi

This device is intended only for host manufacturers under the following conditions: The transmitter module may not be co-located with any other transmitter or antenna; The module shall be only used with the internal antenna(s) that has been originally tested and certified with this module. The antenna must be either permanently attached or employ a ‘unique’ antenna coupler. As long as the conditions above are met, further transmitter test will not be required. However, the host manufacturer is still responsible for testing their end-product for any additional compliance requirements required with this module installed (for example, digital device emissions, PC peripheral requirements, etc.)

Label and compliance information

Host product manufacturers need to provide a physical or e-label stating “Contains Transmitter Module

• FCC ID: 2AOKI-AL8731B” with their finished product.

Information on test modes and additional testing requirements WIFI

Operation Frequency:

2412~2472MHz; 5180~5240MHz; 5260~5320MHz; 5500~5720MHz; 5745~5825MHz.

Modulation:

• BPSK/QPSK/16QAM/64QAM(802.11a)
• DBPSK/DQPSK/CCK(802.11b)
• BPSK/QPSK/16QAM/64QAM(802.11g)
• BPSK/QPSK/16QAM/64QAM(802.11n)

Host manufacturer must perfom test of radiated & conducted emission and spurious emission, etc according to the actual test modes for a stand-alone modular transmitter in a host, as well as for multiple simultaneously transmitting modules or other transmitters in a host product. Only when all the test results of test modes comply with FCC requirements, then the end product can be sold legally

Additional testing, Part 15 Subpart B disclaimer

The modular transmitter is only FCC authorized for FCC Part 15 Subpart C 15.247 and that the host product manufacturer is responsible for compliance to any other FCC rules that apply to the host not covered by the modular transmitter grant of certification. If the grantee markets their product as being Part 15 Subpart B compliant (when it also contains unintentional radiator digital circuity), then the grantee shall provide a notice stating that the final host product still requires Part 15 Subpart B compliance testing with the modular transmitter installed.

• Manufacturer’s Name: Sichuan AI-Link Technology Co., Ltd.
• Sample Description: WIFI Module
• Trade Mark: Wireless-tag
• Model number: WF-R31B-UWD1/AL-8731B-WG-A

This device was tested for operations. To comply with RF exposure requirements, a minimum separation distance of 20cm must be maintained between the user’s body and the charger, including the antenna. Accessories that do not meet these requirements may not comply with RF exposure requirements and should be avoided. Use only the supplied or an approved antenna. This device in compliance with the essential requirements and other relevant provisions of Directive 2014/53/EU. All essential radio test suites have been carried out. This restriction will be applied to all Member States of European Union.

1. The device complies with RF specifications when the device used at 20cm form your body Declaration of Conformity\ Hereby, Sichuan AI-Link Technology Co., Ltd. declares that the product type WF-R31B-UWD1/AL-8731B-WG-A is incompliance with Directives 2014/53/EU

IMPORTANT NOTES

Co-locating warning:

This transmitter must not be co-located or operating in conjunction with any other antenna or transmitter.

OEM integration instructions:

This device is intended only for OEM integrators under the following conditions: The transmitter module may not be co-located with any other transmitter or antenna. The module shall be only used with the external antenna(s) that has been originally tested and certified with this module. As long as the conditions above are met, further transmitter test will not be required. However, the OEM integrator is still responsible for testing their end-product for any additional compliance requirements required with this module installed (for example, digital device emissions, PC peripheral requirements, etc.).

Validity of using the module certification:

In the event that these conditions cannot be met (for example certain laptop configurations or co-location with another transmitter), then the FCC authorization for this module in combination with the host equipment is no longer considered valid and the FCC ID of the module cannot be used on the final product. In these circumstances, the OEM integrator will be responsible for re-evaluating the end product (including the transmitter) and obtaining a separate FCC authorization.

End product labeling:

The final end product must be labeled in a visible area with the following: “Contains Transmitter Module

• FCC ID: 2AOKI-AL8731B”.

Information that must be placed in the end user manual:

The OEM integrator has to be aware not to provide information to the end user regarding how to install or remove this RF module in the user’s manual of the end product which integrates this module. The end user manual shall include all required regulatory information/warning as show in this manual.

ISED Canada RSS-Gen Notice (in English and French):

This device contains license-exempt transmitter(s)/receiver(s) that comply with Innovation, Science and Economic Development Canada’s license-exempt RSS(s). Operation is subject to the following two conditions:

1. This device may not cause interference
2. This device must accept any interference, including interference that may cause undesired operation of the device.
3. the device for operation in the band 5150–5250 MHz is only for indoor use to reduce the potential for harmful interference to co-channel mobile satellite systems;
4. for devices with detachable antenna(s), the maximum antenna gain permitted for devices in the bands 5250-5350 MHz and 5470-5725 MHz shall be such that the equipment still complies with the e.i.r.p. limit;
5. for devices with detachable antenna(s), the maximum antenna gain permitted for devices in the band 5725-5850 MHz shall be such that the equipment still complies with the e.i.r.p. limits as appropriate; and

References

• 四川爱联科技股份有限公司

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