FCC, IC, and CE Label Location and Module Model Identification 12
Important Regulatory Compliance and User Information 12
CE Declaration of Conformity 15
WiFiHU2S Regulatory Domain Frequencies 16
Driver Installation Guide for Windows XP/2K 17
WiFiHU2S USB Linux Driver Quick Installation Guide 20
WiFiHU2S USB Linux SoftAP Installation 21
Installing the WiFiHU2S in SoftAP Mode for Windows 7 23
Limited Warranty 25
Contacting Radicom Research 27
Information furnished by Radicom Research is believed to be accurate and reliable. However
Radicom Research assumes no responsibility for its use, or any infringement of patents or other
rights of third parties that may result from its use. Radicom Research reserves the right to change
circuitry at any time without notice. This document is subject to change without notice.
2
Introduction
Thanks for purchasing Radicom Research’s SMD WiFi Module. Radicom is committed
to providing quality service and technical support in order to expedite the product
development process. The WiFiHU2S Module is designed to fully support
IEEE802.11n™ Draft 2.0, IEEE802.11e™ and IEEE802.11i™ standards. If further
information is required, please contact us and we will provide any additional help needed.
The WiFiHU2S series offers SoftAP support. It can turn your Internet connected PC or
Laptop into a WiFi Wireless Access Point. So any WiFi device such as iPhone, iPod,
PDA, within range can connect to Internet by sharing your WiFiHU2S Access Point.The
WiFiHU2S-a/c requires significant CPU power to run in SoftAP mode on
802.11n. Unless you have a very powerful CPU, it is recommended to use the SoftAP
mode of WiFiHU2S in 802.11b or g modes only.
Features
SoftAP support (Software enabled Access Point)
Supports ACCESS Point (Host WiFi)
IEEE 802.11b/g/n compatible WLAN
150Mbps receive PHY rate and 75Mbps transmit PHY rate using 20MHz bandwidth
300Mbps receive PHY rate and 150Mbps transmit PHY rate using 40MHz bandwidth
20MHz and 40MHz bandwidth transmission
Operates in 2.4GHz Frequency Range
Compatible with 802.11n draft 2.0 specification
Backward compatible with 802.11b/g devices while operating at 802.11n data rates
Frame aggregation for increased MAC efficiency (A-MSDU, A-MPDU)
Low latency immediate High-Throughput Block Acknowledgement (HT-BA)
Long NAV for media reservation with CF-End for NAV release
PHY-level spoofing to enhance legacy compatibility
Hardware antenna diversity
Channel management and co-existence
Multiple BSSID feature allows multiple MAC identities when used as a wireless bridge
Supports Wake-On-WLAN via Magic Packet and Wake-up frame
Transmit Opportunity (TXOP) Short Inter-Frame Spaces (SIFS) bursting for higher
multimedia bandwidth
Short Guard Interval (400ns)
DSSS with DBPSK and DQPSK, CCK modulation with long and short preamble
OFDM with BPSK, QPSK, 16QAM, and 64QAM modulation
Convolutional Coding Rate: 1/2, 2/3, 3/4, and 5/6
OFDM receive diversity with MRC using up to 2 receive paths. Switch diversity used
for DSSS/CCK
Selectable digital transmit and receive FIR filters
Programmable scaling in transmitter and receiver to trade quantization noise against
increased probability of clipping
Fast receiver Automatic Gain Control (AGC)
3
Approvals (PENDING)
FCC Part 15: FCC OET 65 Supplement C (SAR), 47 CFR FCC Part 15
Subpart C 15.247, 47 CFR FCC Part 15 Subpart B 2009 (Class B)
IC RSS-102, IC ES-003 issue 4, IC RSS-247 issue 1:2015
RoHS Compliant
CE Marked: EN 61000-3-2:2006+A2:2009, EN 62311:2008, EN 300 328 V1.7.1,
EN 301 489-1, V1.8.1, EN 61000-3-3:2008, EN 301 489-17 V2.1.1)
Maximum Data Rate 300M bps
Operating Temperature HU
Relative Humidity (non-condensing) 5 % 95 %
Operating Voltage 3.15 3.3 3.6 V
Current Consumption 155 160 168 mA
Transmit & Receive Level -84(Rx) +17 (Tx) dBm
-40
+85 C
Interface
USB
Block Diagram
MAC
SMD MODULE
GND
RF
Antennas
4
Model and Ordering Information
This versatile WiFiHU2S family of products offers configuration options to meet the
specific system. The WiFiHU2S is available as a SMD module with antennas interface.
The WiFiHU2S also has many different antennas options.
Model Description Comments
WiFiHU2S-a
WiFi SMD Module with dual on
board chip antennas
Uses onboard chip antennas.
Not for use with External
Antenna.
WiFiHU2S-c *
WiFi SMD Module with dual on
board U.FL connectors for
attaching antenna cables and
2.4GHz 2 dBi Omni-directional
antennas
Allows designer to determine
antenna placement. Can use
one or two cables and antennas
AC6i-RP-SMA
ATN-2d-RP-SMA
*These models can use either one or two cables and antennas. For ultimate performance, we
recommend using two antennas with better adaptability for receiving. If user want to use
only one set of cable and Antenna, try to use CON1 first.
Prior to connecting the WiFiHU2S to a Window XP, the drivers should be installed. The
WiFiHU2S Modules are designed for easy connection to any wireless network. If using
Windows, load the provided drivers. The WiFiHU2S is now ready for use.
If you plan to embed the WiFiHU2S into your system, the SMD type can be mounted
onto your main board to verify or test the module functions.
If you use external antenna, connect one end of Radicom approved antenna to the on
board U.FL connector.
exceptional reception and throughput. If only using one antenna, you must use the correct
antenna socket for good performance. Connect single antenna to the socket closest to the
Radicom Research white silkscreen legend on the PCB.
For ultimate performance, we recommend using two antennas to get
6
General Layout Design Suggestions
•
General Layout Rules- All Printed Circuit Boards must comply with UL94V0
standard for flammability. Always use RoHS compliant Parts and materials.
•
Suggestions for Layout:
1. Do not place Power circuit, X’tal, Inductor, etc near RF area.
2. The bigger Antenna clearance area, the better. The Antenna circuitry needs to stay
away from any circuit or component by at least 2mm. For best operation, Antenna
clearance area means Top and Bottom both required to be cleared.
3. Do not use metal materials near Antenna area. For example, battery snaps, USB
connector, iron case, etc.
Note: These guidelines are for design reference; real performance still depends on the
actual design.
7
WiFiHU2S Module Mechanical Dimension
The WiFiHU2S Modules are designed for easy connection to any wireless network. The
SMD modules have half-holes which can be mounted onto your main board device.
TOP VIEW
Unit: mm
[inch]
Notes:
1. Dimension of WiFiHU2S module = 1.12” x 0.81” x 0.12”
2. Board thickness = 0.04”
3. Tolerance = ±0.0075”
4. Please refer to the Layout Guideline for pad size.
8
WiFiHU2S Module Layout Pad Guideline
The suggested layout pad for WiFiHU2S SMD Modules should follow the dimension as
follows.
TOP VIEW
Unit: mm
[inch]
9
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