Mindray LBWA1UZ1GC-958 User manual

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Chapter1 Introduction
1.1 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
VDD
UART
JTAG
GPIO
SPI
RST I-PEX
LBWA1UZ1GC-958
（802.11a/b/g/n Module）LPF
(Match)
Crystal
(32.768kHz)
Flash
（MX25L6433FZ2I-08G）
SDIO
ANT
DIV ANT OUT
DIV ANT CTRL
1.2 application scenario
Wlink PCBA is integrated into the internal motherboard or carrier board of the product by soldering. The

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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.

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Chapter2 Product specification
Protocol
Support 802.11a/b/g/n
Modulation
BPSK, QPSK, 16-QAM, 64-QAM
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 datarate：
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

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Chapter3 Product interface
1.1 pin definition
SDIO，SPI ports are reserved for future use。
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

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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
Pins that are not used can be left NC.
1.2 timing
The power-on sequence requirements for Wlink modules are as follows：
3.3V IN（VBAT）
3.3V IN（VDDIO）
The serial communication timing requirements are as follows：
WKUP
TXRDY
TXD
RXD
Sleep
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.
1.3 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 250mAand the maximum is 399mA.

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Chapter4 Requirement and notes
1.1 Schematic and layout design guide
The schematic diagram of Wlink is as follows:
Precautions for carrier board layout:
1，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.
2，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.。

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1.2 manufacturring requirements
Wlink is a sub-part of the carrier board PCBA, and the welding temperature curve requirements are as follows:
Recommended Reflow ProfileTemperature/°C
Preheat Heating Cooling Time（Sec）
1.3 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.
1.4 other notes：
1. 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.
2. Wlink is a radio frequency module. System integration needs to consider avoiding radio frequency signals

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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.
1.5 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.
2.2 List of applicable FCC rules
FCC Part 15.247 and FCC Part 15E
2.3 Specific operational use conditions
This product is a Single-modular transmitter policy independent of any host. Not applicable.
2.4 Limited module procedures
This product is a Single-modular transmitter. It is not a limited module. Not applicable.
2.5 Trace antenna designs
This product has an External Antenna. Not applicable.

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2.6 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.
2.7 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
2.8 Label and compliance information
Remind end customers to add "Contain FCC ID: ZLZ-WLINK"
2.9 Information on test modes and additional testing requirements
Contact SHENZHEN MINDRAY BIO-MEDICAL ELECTRONICS CO., LTD. will provide stand-alone
modular transmitter test mode. Additional testing and certification may be necessary when
multiple modules are used in a host.

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2.10 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 the 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.

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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 requirement under mobile or fixed condition, 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 2: 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.
Note 3: Additional testing and certification may be necessary when multiple modules are used.
Note 4: 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.
Note 5: 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 the
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.
Note 6: FCC ID label on the final system must be labeled with “Contains FCC ID: ZLZ-WLINK” or
“Contains transmitter module FCC ID: ZLZ-WLINK”.

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Note 7: 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
to Regulatory Domain change.
IC WARNING
This device contains licence-exempt transmitter(s) that comply with Innovation, Science and Economic
Development Canada’s licence-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.
L’émetteur/récepteur exempt de licence contenu dans le présent appareil est conforme aux CNR d’Innovation,
Sciences et Développement économique Canada applicables aux appareils radio exempts de licence.
L’exploitation est autorisée aux deux conditions suivantes:
1. L’appareil ne doit pas produire de brouillage;
2. L’appareil doit accepter tout brouillage radioélectrique subi, même si le brouillage est susceptible d’en
compromettre le fonctionnement.
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.
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

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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 20cm between the radiator & your
body.
Cet équipement est conforme aux limites d'exposition aux rayonnements IC établies pour un environnement
non contrôlé. Cet équipement doit être installéet utiliséavec un minimum de 20cm de distance entre la source
de rayonnement et votre corps.
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.
Ce module est limitéàl'installation OEM uniquement et ne doit pas être vendu aux utilisateurs finaux,
l'utilisateur final n'a pas d'instructions manuelles pour retirer ou installer l'appareil, seul le logiciel ou la
procédure d'exploitation doit être placédans le manuel d'utilisation de l'utilisateur final des produits finaux.
Des tests et une certification supplémentaires peuvent être nécessaires lorsque plusieurs modules sont utilisés.
Any changes or modifications not expressly approved by the manufacturer could void the user's authority to
operate this equipment.
Tout changement ou modification non expressément approuvé par le fabricant peut annuler le droit de
l'utilisateur àutiliser cet équipement.
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”.