Microchip Technology 501RT01 Active 802.11b WLAN RFID Tag User Manual

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Document ID	788375
Application ID	353/L2ATo2fAlalvQpVZpg==
Document Description	Users Manual
Short Term Confidential	No
Permanent Confidential	No
Supercede	No
Document Type	User Manual
Display Format	Adobe Acrobat PDF - pdf
Filesize	46.87kB (585930 bits)
Date Submitted	2007-05-03 00:00:00
Date Available	2007-05-03 00:00:00
Creation Date	2007-04-17 09:28:19
Producing Software	GPL Ghostscript 8.15
Document Lastmod	2007-04-17 09:28:19
Document Title	Microsoft Word - UM-0002-00.03-G2C501_Reference_Tag_User_Manual.doc
Document Creator	PScript5.dll Version 5.2.2
Document Author:	rmartin

G2C501 Reference Tag User Manual
Reference Tag User Manual
Model 501RT01
Version 00.03
G2 Microsystems Inc., Copyright 2007
Do Not Copy
Version 00.02
G2C501 Reference Tag User Manual
Disclaimer
The information provided in this document is under development and believed to be accurate. However, G2 Microsystems reserves the right to make changes without further notice to the products herein to improve reliability, function,
or design, and makes no guarantee or warranty concerning the accuracy of said information, and shall not be
responsible for any loss or damage of whatever nature resulting from the use of, or reliance upon such information. G2
Microsystems makes no warranties of any kind, whether express, implied or arising by custom or course of trade or
performance, and specifically disclaims the implied warranties of title, non infringement, merchantability, or of fitness
for a particular purpose.
Trademarks
G2 Microsystems and the G2 logo are trademarks of G2 Microsystems. Other trademarks in this document belong to
their respective companies.
Copyright © 2007 G2 Microsystems, Inc. All rights reserved.
Document Number: UM-0002-00.01
Release Date: April 2007; Version 00.01
FCC Compliance
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:
1. Reorient or relocate the receiving antenna.
2. Increase the separation between the equipment and receiver.
3. Connect the equipment to an outlet on a circuit different from that to which the
receiver is connected.
4. Consult the dealer or an experienced radio/TV technician.
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.
FCC Warning
Modifications not expressly approved by the manufacturer could void the user’s
authority to operate the equipment under FCC Rules.
Radio Frequency Exposure
This equipment has been evaluated in accordance with the FCC bulletin 56 “Hazards of radio frequency and
electromagnetic fields” and bulletin 65 “ Human exposure to radio frequency and electromagnetic fields. Safe operation
in an uncontrolled environment will result if the following distances from the device are maintained as a minimum.
A distance greater than or equal to 20 cm from the device should be maintained. This device falls under the category of
a “mobile” device for the purpose of determining this operating distance.
G2 Microsystems Inc., Copyright 2007
Do Not Copy
Version 00.02
G2C501 Reference Tag User Manual
Table of Contents
Application .............................................................................................................................. 4
Introduction ............................................................................................................................ 4
3.1
3.2
3.3
Detailed Description .............................................................................................................. 4
Hardware Description ........................................................................................................... 4
Product Specification ............................................................................................................ 5
Operational Capability ......................................................................................................... 5
Tag Configuration ................................................................................................................. 5
5 Operation ................................................................................................................................ 5
5.1 Application Instatllation ....................................................................................................... 5
G2 Microsystems Inc., Copyright 2007
Do Not Copy
Version 00.02
G2C501 Reference Tag User Manual
Notice To User: G2 Microsystems Model 501RT01 is to be configured by
Professional Installers only who have received training on the proper
configuration of internal registers that can and will affect the tags operation
and performance.
1 Application
The Model 501RT01 reference tag is intended to provide the user a complete active RFID tag vehicle in which the
customer can develop:
1) unique software applications for the tag.
2) use the tag as a vehicle to develop their own unique hardware design around the G2C501 802.11b WLAN RFIC.
The 501RT01 can be a hardware reference design where the user uses the tag to get a design going which the user
then later on develops their application and certifies its performance.
The 501RT01 comes pre-calibrated, where the user, needs to develop the application software for the tag application
being considered by the developer.
2 Introduction
The G2 Microsystems, Model 501RT01, is a battery powered, 802.11b, Wi-Fi compatible, sensor platform that is
capable of being networked in a WLAN environment. The 501RT01 can receive and send Wi-Fi compatible messages
at user defined intervals. The Wi-Fi sensor platform serves as a means to become an RFID tag where the RFID
platform can send messages with unique ID’s and/or data encoded from several sensors which are part of the tag. The
model 501RT01 seamlessly becomes part of the users wireless network infrastructure in that the tag becomes just
another user on the WLAN network. The model 501RT01 and its inherent sensors can be configured to the application
best suited by the user.
This user’s guide is intended to assist the user in properly configuring G2 Microsystems model 501RT01 for their
intended application.
3 Detailed Description
3.1
Hardware Description
The G2 Microsystems Model 501RT01 at its heart utilizes the G2 Microsystems G2C501 Radio Frequency
Integrated Circuit (RFIC) for the core of the RFID tags functionality. The G2C501 RFIC is comprised as a
complete 802.ll DSSS transceiver consuming very low power. Surrounding the G2C501 is auxiliary circuitry and
functionality that extends the inherent capability of the G2C501. The auxiliary circuitry, surrounding, the G2C501
is:
1)
External RF power Amplifier, antenna diversity switch network and antenna’s for 802.11b service.
2)
DC power control extends the capability of the G2C501 in that the G2C501 internal power supply can be
easily converted to an efficient switching regulator for powering external amplifiers and maintaining
constant voltages, to the RFID tag, from the battery, while the battery draws down.
G2 Microsystems Inc., Copyright 2007
Do Not Copy
Version 00.02
G2C501 Reference Tag User Manual
3)
Sensor capabilities have been included in the 501RT01 that interface with the G2C501 RFIC. Sensor
capabilities include
LF (Low Frequency) 125 kHz magnetic pick-up sensor
Tilt/vibration sensor
Temperature sensor
Push Button Sensor
Current/Resistor Sensor
4)
3.2
External Flash memory is available of up to 4M to store data and programming information
Product Specification
The following table summarizes the allowed performance characteristics of the 501RT01 RFID tag:
Parameter
Frequency Band
Connectivity Protocol
Modulation
Radiated Transmit Power
Clear Channel Assessment (CCA)
Input Power
802.11b Message Length
Transmission Interval
Duty Cycle
3.3
Description
2.412 to 2.462 GHz (Channel 1 thru 11)
802.11b Direct Sequence Spread Spectrum
DBPSK @ 1 Mbps
25.96 dBm EIRP, peak
RSSI detection
3.0 V Lithium Battery
TBD uSec Max
TBD minimum TBD Maximum
25% Maximum
Operational Capability
The 501RT01 is capable of being programmed for a variety of configurations. The tag is capable of being
programmed via the serial RS232 port where the tags frequency, transmission interval as well as the message
length and message content are programmed. In between messages being sent, the tag is shut down into a very
low current state. Essentially most battery power is consumed during the transmission interval.
4 Tag Configuration
The 501RT01 comes pre-calibrated for maximum output power as well as the user being able to set the frequency to
channels 1 through 11.The application to be programmed in the 501RT01 tag is programmed via the RS232 interface.
The manual RS232 interface connects to the programming source where command line instructions to set the
frequency, mac address and other operational parameters are entered.
5 Operation
5.1
Application Installation
The Model 501RT01 comes pre-calibrated and is initially shipped with no application installed. The user is responsible
for determining the tag application, developing software for the application, programming the tag for the intended
application and ensuring the tag performs as intended within the limits of the product specification of section 2.2 in this
manual. In particular a duty cycle of 25% is the maximum allowed duty cycle. Use of a duty cycle greater than this will
cause the tag to violate FCC regulations. Because of the potential of setting the duty cycle to high only professional
installers are allowed to set up the hardware.
G2 Microsystems Inc., Copyright 2007
Do Not Copy
Version 00.02
G2C501 Reference Tag User Manual
There is plenty of additional documentation and hardware to assist the user in developing their own applications.
Available documents are available in the G2C501 Release CD which includes:
1) G2C501 Software Development Kit (SDK)
2) G2C501 Quick Start Guide
3) Tag Interface Module Printed Circuit board (TIM) is available upon request
Application developers must be aware of the radiation safety limitations described in the “Radio Frequency Exposure”
section of this users manual.
Additional assistance and suggestions can be obtained from G2 Microsystems Application Engineering department
which can be reached at:
G2 Microsystems
1475 South Bascom Avenue
Suite 109
Campbell, CA 95008
(408) 626-4812
support@G2Microsystems.com
G2 Microsystems Inc., Copyright 2007
Do Not Copy
Version 00.02

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