mindray Wlink PCBA wireless module User Manual

mindray Wlink PCBA wireless module

Introduction

1. composition and function
   Wlink provides a solution for converting UART to low-power WiFi.
   Wlink runs its own TCP/IP protocol stack, which means lower performance requirements for the host MCU.
   Wlink PCBA is shown as follows：
   The block diagram of Wlink PCBA is as follows, based on Murata’s LBWA1UZ1GC-958 module, whose core chip is Cypress’s CYW43907

2. application scenario
   Wlink PCBA is integrated into the internal motherboard or carrier board of the product by soldering. The antenna is connected to the I-pex socket MHF I on the module through a RF cable.
   Wlink is suitable for products that do not require high WiFi throughput or need to achieve WiFi function isolation, such as pumps, AEDs, defibrillation, etc.

Product specification

Tx power

| Not less than the flowing values when operating at the lowest datarate： 11a, 6Mbps: 11dBm;

11b, 1Mbps: 15dBm, 11g, 6Mbps:11dBm;

11n, MCS0: 10dBm。

sensitivity

| Not bigger than the flowing values when operating at the lowest data rate： 11a, 6Mbps: -90dBm，

11b, 1Mbps: -92dBm,

11g, 6Mbps:-90dBm; 11n, MCS0: -90dBm。

ANT port| One Ipex MHF I connector
Communicating port| UART
Power port| 3.13V~3.6V
Frequency range| 2412MHz~2462MHz

5180MHz~5320MHz，5500MHz~5700MHz，5745MHz~5825MHz

**** datarate| IEEE 802.11a: 6-54 Mbps IEEE 802.11b: 1-11 Mbps IEEE 802.11g: 6-54 Mbps

IEEE 802.11n: MCS0-MCS7，support HT20 and HT40 when at 5Ghz band

**** security| standards：

OPEN，WPA/WPA2-PSK, WPA/WPA2-Enterprise EAP method：

EAP-TLS,PEAP-MsCHAPv2，EAP-TTLS

encryption： TKIP and AES

Operation temperature| 0~70℃
Contain FCC ID| ZLZ-WLINK

Product interface

1. pin definition**
   Pin #| Pin name| type| description**
   ---|---|---|---
   1| GND| A| GND
   2| UART0_TXD_OUT| O| Uart out
   3| UART0_RXD_IN| I| Uart in
   4| VDD| Power| power, typically 3.3VDC
   5| JTAG_RESET_N| I| JTAG reset
   6| GPIO_2_JTAG_TCK| I| JTAG clock
   7| GPIO_4_JTAG_TDI| I| JTAG TDI
   8| GPIO_5_JTAG_TDO| O| JTAG TDO
   9| VBAT| Power| power, typically 3.3VDC
   10| GPIO_3_JTAG_TMS| I| JTAG TMS
   11| GPIO_6_JTAG_TRST_L| I| JTAG TRST
   12| HIB_REG_ON_IN| I| Reset in
   13| VDD| Power| power, typically 3.3VDC
   14| GND| A| GND
   15| GND| A| GND
   16| RF_SW_CTRL_8_UART2_RX| I| Dubug uart input
   17| RF_SW_CTRL_9_HIB_LPO_SEL_UART2_TX| O| Dubug uart output
   18| SDIO_DATA1| I/O| SDIO DATA
   19| SDIO_DATA0| I/O| SDIO DATA
   20| SDIO_CMD| I/O| SDIO CMD
   21| SDIO_CLK| I| SDIO CLK
   22| GND| A| GND
   23| GND| A| GND
   24| WAKE_OUT| O| WAKE UP OUTPUT
   25| WAKE_IN| I| WAKE UP IN
   26| SDIO_DATA2| I/O| SDIO DATA
   27| SDIO_DATA3| I/O| SDIO DATA
   28| UART0_RTS_OUT| O| reserved
   29| UART0_CTS_IN| I| reserved
   30| VDD| Power| power, typically 3.3VDC
   31| EXT_SLEEP_CLK| CLK IN| power, typically 3.3VDC
   32| SPI_0_CS| I| reserved
   33| SPI_0_MOSI| I| reserved
   34| SPI_0_MISO| O| reserved
   ---|---|---|---
   35| SPI_0_CLK| I| reserved
   36| GND| A| GND
   37| RF_SW_CTRL_4| O| reserved
   38| RF_SW_CTRL_5| O| reserved
   39| GND| A| GND
   40| ANT| A| reserved
   41| GND| A| GND

2. timing
   The power-on sequence requirements for Wlink modules are as follows：
   The serial communication timing requirements are as follows： WKUP and TXD are the output signals of the upper computer. After WKUP changes from high to low, TXRDY signal must respond to the low level of T2 length within T1 time. After that, the host computer sends serial port commands. Before Wifi module sends serial data, it needs to drive TXRDY signal to low.

3. power
   Wlink works with single DC power supply, the power supply voltage range is 3.13V~3.6V. When the supply voltage is 3.3V, the peak current is typically 250mA and the maximum is 399mA.

Requirement and notes

1. Schematic and layout design guide
   The schematic diagram of Wlink is as follows:
   Precautions for carrier board layout:

2. The right half of Wlink is an analog circuit with antenna interface and diversity antenna circuit, as shown in the figure below. Avoid running high-speed clock lines on the carrier board near the Wlink analog circuit. Grounding is recommended

3. There are test points on the bottom of Wlink, and the surface of the carrier board should avoid the risk of short circuit caused by copper opening.

4. manufacturing requirements
   Wlink is a sub-part of the carrier board PCBA, and the welding temperature curve requirements are as follows:

5. mechanical constraints
   

   • The length and width is 28mm*14.3mm.
   • The maximum height without socket is 2.82mm.
   • The maximum height with socket is 3.5mm.

6. other notes：

7. When the machine is integrated, it is necessary to prevent Wlink from receiving 2.4G/5G electromagnetic interference (such as magnetic couple devices, CPU, DDR, 2.4G wifi antenna, etc.) from other part of the machine, otherwise it will reduce the radio frequency sensitivity and reduce the communication distance.

8. Wlink is a radio frequency module. System integration needs to consider avoiding radio frequency signals from interfering with other sensitive circuits.
   3. The ESD protection capability of the radio frequency module, especially the antenna port, is weak. ESD protection is required during transportation and use.
   4. The ESD protection capability of the WiFI module itself is relatively weak. If the WiFi antenna needs to be led out of the machine, ESD protection measures need to be added to the lead out path.

9. warning
   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.
   NOTE 1: Any changes or modifications to this unit not expressly approved by the party responsible for compliance could void the user’s authority to operate the equipment.
   This equipment complies with the FCC RF 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 any part of your body.

10. List of applicable FCC rules
    FCC Part 15.247 and FCC Part 15E

11. Specific operational use conditions
    This product is a Single-modular transmitter policy independent of any host. Not applicable.

12. Limited module procedures
    This product is a Single-modular transmitter. It is not a limited module. Not applicable.

13. Trace antenna designs
    This product has an External Antenna. Not applicable.

14. RF exposure considerations
    This equipment complies with the FCC RF 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 any part of your body.

15. Antennas
    This product has an External Antenna. As follow,No.| Antenna Type| Gain| Impedance
    ---|---|---|---
    1| FPC dipole| 2.4G: 2.79dBi;

5G: 3.38dBi

| 50ohm
2| FPC dipole| 2.4G:2.79dBi

5G: 3.38dBi

| 50ohm
3| FPC dipole| 2.4G:2.6dBi

5G: 3.1dBi

| 50ohm
4| Copper pipe dipole| 2.4G:1.32dBi

5G: 2.75dBi

| 50ohm
5| Copper pipe dipole| 2.4G:1.87dBi

5G: 0.94dBi

| 50ohm
6| FPC PIFA| 2.4G:1dBi

5G: 1dBi

| 50ohm
7| FPC PIFA| 2.4G:1.56dBi

5G: 4.17dBi

| 50ohm
7. Label and compliance information
Remind end customers to add “Contain FCC ID: ZLZ-WLINK”

8.  **Information on test modes and additional testing requirements**  

Contact SHENZHEN MINDRAY BIO-MEDICAL ELECTRONICS CO., LTD. will provide a stand-alone modular transmitter test mode. Additional testing and certification may be necessary when multiple modules are used in a host.

9.  **Additional testing, Part 15 Subpart B disclaimer  

** To ensure compliance with all non-transmitter functions the host manufacturer is responsible for ensuring compliance with the module(s) installed and fully operational. For example, if a host was previously authorized as an unintentional radiator under the Supplier’s Declaration of Conformity procedure without a transmitter certified module and a module is added, the host manufacturer is responsible for ensuring that after the module is installed and operational the host continues to be compliant with the Part 15B unintentional radiator requirements. Since this may depend on the details of how the module is integrated with the host, SHENZHEN MINDRAY BIO-MEDICAL ELECTRONICS CO., LTD. shall provide guidance to the host manufacturer for compliance with the Part 15B requirements.

FCC Radiation Exposure Statement:

This equipment complies with FCC radiation exposure limits set forth for an uncontrolled environment. End-users must follow the specific operating instructions for satisfying RF exposure compliance. This module certified that complies with RF exposure requirements under mobile or fixed conditions, this module is to be installed only in mobile or fixed applications.
A mobile device is defined as a transmitting device designed to be used in other than fixed locations and to generally be used in such a way that a separation distance of at least 20 centimeters is normally maintained between the transmitter’s radiating structure(s) and the body of the user or nearby persons. Transmitting devices designed to be used by consumers or workers that can be easily re-located, such as wireless devices associated with a personal computer, are considered to be mobile devices if they meet the 20-centimeter separation requirement. A fixed device is defined as a device is physically secured at one location and is not able to be easily moved to another location.

Note:

1. Any modifications made to the module will void the Grant of Certification, this module is limited to OEM installation only and must not be sold to end-users, end-user has no manual instructions to remove or install the device, only software or operating procedure shall be placed in the end-user operating manual of final products.
2. Additional testing and certification may be necessary when multiple modules are used.
3. The module may be operated only with the antenna with which it is authorized. Any antenna that is of the same type and of equal or less directional gain as an antenna that is authorized with the intentional radiator may be marketed with and used with, that intentional radiator.
4. To ensure compliance with all non-transmitter functions the host manufacturer is responsible for ensuring compliance with the module(s) installed and fully operational. For example, if a host was previously authorized as an unintentional radiator under the Supplier’s Declaration of Conformity procedure without a transmitter certified module and a module is added, the host manufacturer is responsible for ensuring that after the module is installed and operational the host continues to be compliant with the Part 15B unintentional radiator requirements. Since this may depend on the details of how the module is integrated with the host, SHENZHEN MINDRAY BIO-MEDICAL ELECTRONICS CO., LTD. shall provide guidance to the host manufacturer for compliance with the Part 15B requirements.
5.  FCC ID label on the final system must be labeled with “Contains FCC ID: ZLZ-WLINK” or “Contains transmitter module FCC ID: ZLZ-WLINK”.
6. For all products market in US, OEM has to limit the operation channels in CH1 to CH11 for 2.4G band by supplied firmware programming tool. OEM shall not supply any tool or info to the end-user regarding Regulatory Domain change

IC WARNING

This device contains license-exempt transmitter(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.

This radio transmitter [enter the device’s ISED certification number] has been approved by Innovation, Science, and Economic Development Canada to operate with the antenna types listed below, with the maximum permissible gain indicated. Antenna types not included in this list that have a gain greater than the maximum gain indicated for any type listed are strictly prohibited for use with this device.

5G: 3.38dBi

| 50ohm
2| FPC dipole| 2.4G:2.79dBi

5G: 3.38dBi

| 50ohm
3| FPC dipole| 2.4G:2.6dBi

5G: 3.1dBi

| 50ohm
4| Copper pipe dipole| 2.4G:1.32dBi

5G: 2.75dBi

| 50ohm
5| Copper pipe dipole| 2.4G:1.87dBi

5G: 0.94dBi

| 50ohm
6| FPC PIFA| 2.4G:1dBi

5G: 1dBi

| 50ohm
7| FPC PIFA| 2.4G:1.56dBi

5G: 4.17dBi

| 50ohm

IC Radiation Exposure Statement:

This device and its antenna(s) must not be co-located with any other transmitters except in accordance with IC multi-transmitter product procedures. Referring to the multi-transmitter policy, multiple-transmitter(s) and module(s) can be operated simultaneously without reassessment permissive change. Cet appareil et son antenne (s) ne doit pas être co-localisés ou fonctionnement en association avec une autre antenne ou transmetteur. This equipment complies with IC RSS-102 radiation exposure limits set forth for an uncontrolled environment. This equipment should be installed and operated with minimum distance of 20cm between the radiator & your body.

This module is limited to OEM installation only and must not be sold to end- users, end-user has no manual instructions to remove or install the device, only software or operating procedure shall be placed in the end-user operating manual of final products. Additional testing and certification may be necessary when multiple modules are used. Any changes or modifications not expressly approved by the manufacturer could void the user’s authority to operate this equipment.  The final end product must be labeled in a visible area with the following ” Contains IC: 9726A-WLINK “. Le produit final final doit être étiqueté dans une zone visible avec la mention “Contient IC: 9726A- WLINK”.

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