Basys Technology SAT2 Theft Deterrent Transmitter User Manual Description and Manual

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Document ID	41176
Application ID	MoPzajrawZJft8EurYSmFA==
Document Description	Description and Manual
Short Term Confidential	No
Permanent Confidential	No
Supercede	No
Document Type	User Manual
Display Format	Adobe Acrobat PDF - pdf
Filesize	13.57kB (169636 bits)
Date Submitted	1999-06-09 00:00:00
Date Available	1999-09-28 00:00:00
Creation Date	2001-06-20 17:07:43
Producing Software	Acrobat Distiller 4.0 for Windows
Document Lastmod	2001-06-20 17:07:44
Document Title	Description and Manual

REFERENCE:
Project number 362020
Document number 00-8006
TITLE:
FCC TAG Set Description of Operation
 Asset and Personnel RF Tagging System
Intelitag
ISSUE:
AUTHOR:
Stephen Grant
Electronic Design Engineer
APPROVED BY:
POSITION:
Mark Mitchelmore
Engineering Manager
AUTHORISED BY:
POSITION:
Richard Papanicolaou
Quality Director
© BASYS TECHNOLOGY LIMITED 1998
DATE:7th March 1998
Page 1 of 11
41176.DOC
The copyright in this document is vested in Basys Technology Limited. This document is issued
only for the purpose for which it is supplied. And on the express terms that it is to be treated as
commercially confidential and that it may not be reproduced in whole or in part, or used or
disclosed to others for any purpose except as authorised in writing by this company.
Revision History
Date
Details of change
7/4/99
17/5/99
V. minor textual changes and a change to RAT
transmission timing. Renamed R.A.T. to RAT.
Addition of new paragraph 7 detailing FCC
Identification
© BASYS TECHNOLOGY LIMITED 1998
Iss. /Change No.
Draft a
Draft b
Page 2 of 11
41176.DOC
The copyright in this document is vested in Basys Technology Limited. This document is issued
only for the purpose for which it is supplied. And on the express terms that it is to be treated as
commercially confidential and that it may not be reproduced in whole or in part, or used or
disclosed to others for any purpose except as authorised in writing by this company.
1
Contents
CONTENTS......................................................................................................................................... 3
INTRODUCTION ............................................................................................................................... 4
SYSTEM DESCRIPTION.................................................................................................................. 5
REFERENCE DOCUMENTATION................................................................................................. 6
4.1
TRANSMISSION REQUIREMENTS .............................................................................................. 6
5.1
PAT TAG ......................................................................................................................................... 7
SAT TAG ......................................................................................................................................... 8
RAT TAG......................................................................................................................................... 9
FCC IDENTIFICATION.................................................................................................................. 11
7.1
7.2
FCC RULES ....................................................................................................................................... 6
TAG TRANSMISSION TIMING AND OPERATING FIELD STRENGTH ............................... 7
6.1
6.2
6.3
REFERENCE DOCUMENTATION .......................................................................................................... 6
TAGS ............................................................................................................................................... 11
READER ........................................................................................................................................... 11
FCC MODIFICATION DISCLAIMER AND OTHER STATEMENTS..................................... 11
© BASYS TECHNOLOGY LIMITED 1998
Page 3 of 11
41176.DOC
The copyright in this document is vested in Basys Technology Limited. This document is issued
only for the purpose for which it is supplied. And on the express terms that it is to be treated as
commercially confidential and that it may not be reproduced in whole or in part, or used or
disclosed to others for any purpose except as authorised in writing by this company.
2
Introduction
This document describes the transmission timing and power levels of the Intelitag
Tag transmitters for conformance to FCC Part 15 Subpart C for intentional
transmitters.
© BASYS TECHNOLOGY LIMITED 1998
Page 4 of 11
41176.DOC
The copyright in this document is vested in Basys Technology Limited. This document is issued
only for the purpose for which it is supplied. And on the express terms that it is to be treated as
commercially confidential and that it may not be reproduced in whole or in part, or used or
disclosed to others for any purpose except as authorised in writing by this company.
3
System Description
The Intelitag™ electronic tagging system, also distributed under the ParSec
trade name, is a radio based short to long range tagging system for the
protection and monitoring of assets. The system operates at a nominal
frequency of 418MHz as a Low-Power, Non-Licensed Transmitter in accordance
with FCC Part 15 Subpart C for intentional Radiators (TAGs) and Subpart B for
unintentional radiators (Reader). The system is also type approved to MPT1340 licence exempt frequency band by the UK Radiocommunications Agency.
Approval number 13422 refers.
The basic system comprises a range of tags - compact radio frequency
transmitters which communicate with a universal reader. The reader interprets
the data packet received from a tag transmitting within its field of reception and,
in turn, passes this data on to a controller or computer.
Using a combination of two power levels and differing data patterns, the universal
reader is able to distinguish between ‘long range’ and ‘short range’ Intelitags.
Long range tags are read at a nominal distance of up to 75m in free space,
depending on the characteristics of the ambient RF environment. Short range
tags are only detected by the reader when they enter its short range zone, which
is adjustable from a few cm to 25m in free space. It is the combination of short
and long range detection within a single reader which, in conjunction with the
properties of the different tag types described below, which gives the Intelitag
system its unique performance characteristics.
Every tag has a unique identity which it transmits in conjunction with additional
data relating to its operational status which includes battery status. The data
packet contains 60 bits and is transmitted at 2.731 Kbaud. Thus an asset or
individual equipped with a tag can be uniquely identified by the system. The
Intelitag system has been designed primarily for security applications although its
use can also be extended to a wide range of asset tracking and management
tasks.
A regular ‘reporting’ transmission from asset Intelitags provides both a security
confidence check and an additional asset management (inventory) facility. Asset
Intelitags incorporate anti-tamper switches which are detected at long range.
© BASYS TECHNOLOGY LIMITED 1998
Page 5 of 11
41176.DOC
The copyright in this document is vested in Basys Technology Limited. This document is issued
only for the purpose for which it is supplied. And on the express terms that it is to be treated as
commercially confidential and that it may not be reproduced in whole or in part, or used or
disclosed to others for any purpose except as authorised in writing by this company.
4
4.1
Reference Documentation
Reference Documentation
4.1.1 FCC Part 15 Subpart C for intentional transmitters
5.1
Transmission Requirements
FCC rules
5.1.1 Transmission Categories and Levels
5.1.1.1 The PAT, SAT and RAT tag transmissions fall into three categories.
These are, a) Automatic, b) Periodic and c) control signals.
5.1.1.2 The maximum Field Strength levels that apply for each category are as
follows:
5.1.1.2.1 Automatic
10333uV/M (80.28dBuV/M)
5.1.1.2.2 Periodic
4410 uV/M (72.89dBuV/M)
5.1.1.2.3 Control
10333uV/M (80.28dBuV/M)
5.1.2 Timing Requirements
5.1.2.1 Automatic Transmissions
5.1.2.1.1 The covering FCC category is Part 15.231 (a), which states that a
transmission activated automatically shall cease within 5 seconds. A
triggering event occurring at any time after this 5 second period shall allow a
further 5 second period of transmissions and so on.
5.1.2.2 Periodic Transmissions
5.1.2.2.1 The covering FCC category is Part 15.231 (e), which states that the duration
of each transmission shall not be greater than one second and the silent
period between transmissions shall be at least thirty times the duration of the
transmission but in no case less than 10 seconds.
5.1.2.3 Control Signal Transmissions
5.1.2.3.1 The covering FCC category is Part 15.231 (a), which states that a manually
operated transmitter shall employ a switch that will automatically deactivate
the transmitter within not more than 5 seconds of being released.
© BASYS TECHNOLOGY LIMITED 1998
Page 6 of 11
41176.DOC
The copyright in this document is vested in Basys Technology Limited. This document is issued
only for the purpose for which it is supplied. And on the express terms that it is to be treated as
commercially confidential and that it may not be reproduced in whole or in part, or used or
disclosed to others for any purpose except as authorised in writing by this company.
6
6.1
TAG Transmission Timing and Operating Field Strength
PAT TAG
6.1.1 Operating Description
6.1.1.1 The Portable Intelitag (PAT) has been designed to allow the movement
of mobile assets within a controlled area or building, whilst denying or
monitoring the removal from, and re-entry of the assets into the area.
The PAT is normally detected when it enters the short-range zone of a
universal Reader; however it’s other transmissions, including tamper, will
be detected by a reader at long range.
6.1.1.2 The PAT Tag contains a shock sensor and miniature push button switch.
The shock sensor is used to detect movement and the switch is used to
detect removal (Tamper) of the TAG from an item it is adhered to. By
monitoring the sensor and the switch the TAG can determine what sort of
transmission should be transmitted.
6.1.2 Transmission Characteristics
6.1.2.1 Shock Triggered Transmission (automatic)
6.1.2.1.1 The transmission consists of 7 discrete frames of data at a repetition rate of
approximately 0.576s at an output field strength level conforming to paragraph
5.1.1.2.1 above. The total transmission time is approximately 4 seconds. The
transmissions will begin when the shock sensor is disturbed. After the
transmission has stopped the shock sensor will then be interrogated for new
shock events.
6.1.2.2 Tamper Triggered Transmission (automatic)
6.1.2.2.1 The transmission shall consist of 7 discrete frames of data at a repetition rate
of approximately 0.576s at an output field strength level described in
paragraph 5.1.1.2.1 above. The total transmission time is approximately four
seconds. This transmission will begin when the tamper switch is released.
When the tamper switch is re-closed the tamper transmission may be started
again on its release.
6.1.2.3 Routine report (periodic)
6.1.2.3.1 The transmission shall consist of 7 discrete frames of data at a repetition rate
of approximately 0.072s at an output field strength level described in
paragraph 5.1.1.2.2 above. The total transmission time will be 0.9s. This
transmission is repeated every 1 hour (± 10 minutes).
6.1.2.3.2 The routine report facility may be disabled by placing switch 4 in the ON
position before the Tag is switched on.
© BASYS TECHNOLOGY LIMITED 1998
Page 7 of 11
41176.DOC
The copyright in this document is vested in Basys Technology Limited. This document is issued
only for the purpose for which it is supplied. And on the express terms that it is to be treated as
commercially confidential and that it may not be reproduced in whole or in part, or used or
disclosed to others for any purpose except as authorised in writing by this company.
6.2
SAT TAG
6.2.1 Operating Description
6.2.1.1 The Static Intelitag (SAT) has been designed primarily to protect
equipment such as computers and their internal components, and all
other types of static office equipment. However, the SAT is highly
versatile and can be used to protect any static article including hospital
and laboratory equipment, works of art and any item of significant value.
The SAT can be detected at a range of up to 75m in clear space
6.2.1.2 The SAT Tag contains a shock sensor and miniature push button switch.
The shock sensor is used to detect movement and the switch is used to
detect removal (Tamper) of the TAG from an item it is adhered to. By
monitoring the sensor and the switch the TAG can determine what sort of
transmission should be transmitted.
6.2.2 Transmission Characteristics
6.2.2.1 Shock Triggered Transmission (automatic)
6.2.2.1.1 The transmission consists of 7 discrete frames of data at a repetition rate of
approximately 0.576s at an output field strength level conforming to paragraph
5.1.1.2.1 above. The total transmission time is approximately 4 seconds. The
transmissions will begin when the shock sensor is disturbed. After the
transmission has stopped the shock sensor will then be interrogated for new
shock events.
6.2.2.2 Tamper Triggered Transmission (event driven)
6.2.2.2.1 The transmission shall consist of 7 discrete frames of data at a repetition rate
of approximately 0.576s at an output field strength level described in
paragraph 5.1.1.2.1 above. The total transmission time is approximately four
seconds. The transmission will begin when the tamper switch is released.
When the tamper switch is re-closed the tamper transmission may be started
again on its release.
6.2.2.3 Routine report (periodic)
6.2.2.3.1 The transmission shall consist of 7 discrete frames of data at a repetition rate
of approximately 0.072s at an output field strength level described in
paragraph 5.1.1.2.2 above. The total transmission time is approximately 0.9s.
The transmission repetition rate shall be approximately 1 hour (± 10 minutes).
6.2.2.3.2 The routine report facility may be disabled by placing switch 4 in the ON
position before the Tag is switched on.
© BASYS TECHNOLOGY LIMITED 1998
Page 8 of 11
41176.DOC
The copyright in this document is vested in Basys Technology Limited. This document is issued
only for the purpose for which it is supplied. And on the express terms that it is to be treated as
commercially confidential and that it may not be reproduced in whole or in part, or used or
disclosed to others for any purpose except as authorised in writing by this company.
6.3
RAT TAG
6.3.1 Description
6.3.1.1 The Range Adjustment TAG (RAT) is used to remotely turn on and off
the Reader’s short-range reception field at a required distance. This
varies the range at which the PAT tag’s shock activated transmission’s
can be received.
6.3.1.2 The R.A.T. comprises two PCB assemblies connected by a screened 6
core cable (approximately 6cms long) enclosed in an ABS enclosure with
external buttons. The main PCB is identical to the PCB in the SAT and
PAT. The second PCB within the RAT is used to mount miniature
switches beneath the external buttons. This PCB contains no other
components.
6.3.1.3 The RAT is used generally once after installation of a system.
6.3.1.4 The reader will respond with a buzzer when it receives certain
transmissions from the RAT (FIND and SEE). But the reader will always
flash an LED every time it receives a complete packet of data.
6.3.2 Transmission Characteristics
6.3.2.1 While one of the four buttons is depressed the RAT transmits a control
signal data packet of data at approximately 0.4s intervals at an output
field strength level described in paragraph 5.1.1.2.1 above. The
operation function of each button (FIND, SEE, + and -) is described
below.
6.3.2.1.1 The FIND button is used to set the edge of Receiver’s ON range. The user
sets the reader into a preset mode and stands to where the edge of range is
desired. The FIND button is then depressed. The received analogue signal is
compared to a variable voltage from a digital comparator which is modified
until the signal is ‘lost’. The voltage on the comparator is then incremented
once. After 5-10 seconds of the key press the reader will respond with a
buzzer sound indicating that the range has been set. The button can then be
released and the Reader mode returned to normal operation. Thus the
receiver will be ‘off’ for any low power transmissions outside of this range and
‘on’ for any inside.
6.3.2.1.2 The SEE button is used to determine the range of a reader previously set.
With the SEE button depressed the reader will respond with a buzzer when
the RAT is within the range.
© BASYS TECHNOLOGY LIMITED 1998
Page 9 of 11
41176.DOC
The copyright in this document is vested in Basys Technology Limited. This document is issued
only for the purpose for which it is supplied. And on the express terms that it is to be treated as
commercially confidential and that it may not be reproduced in whole or in part, or used or
disclosed to others for any purpose except as authorised in writing by this company.
6.3.2.1.3 The Plus and Minus range buttons are used to increment the range of the
Reader either out or in respectively to the users desired position.
6.3.2.2 The characteristics of the RAT remain unaltered throughout its operation.
© BASYS TECHNOLOGY LIMITED 1998
Page 10 of 11
41176.DOC
The copyright in this document is vested in Basys Technology Limited. This document is issued
only for the purpose for which it is supplied. And on the express terms that it is to be treated as
commercially confidential and that it may not be reproduced in whole or in part, or used or
disclosed to others for any purpose except as authorised in writing by this company.
7
7.1
FCC Identification
Tags
7.1.1 Portable Asset TAG (PAT) – N4GPAT2
7.1.2 Static Asset TAG (SAT) – N4GSAT2
7.1.3 Range Adjustment TAG (RAT) – N4GRAT2
7.2
Reader
7.2.1 N4GREADER
8.1
8.2
8.3
FCC Modification Disclaimer and other Statements
These devices comply with part 15 of the FCC rules. Operation is
subject to the following two conditions:
(1)
These devices may not cause harmful interference, and
(2) these devices must accept interference received, including
interference that may cause undesired operation.
8.4
The user is cautioned that modifications or changes to an intentional
or unintentional radiator not expressly approved by the party
responsible for compliance could void the user's authority to operate
the equipment.
8.5
The tags are powered are by standard Lithium coin cells and as such
the following warning shall be noted:
8.5.1 CAUTION Danger of explosion if batteries are incorrectly replaced.
Replace only with the same or equivalent type recommended by the
manufacturer. Dispose of used batteries according to the manufacturer’s
instructions.
© BASYS TECHNOLOGY LIMITED 1998
Page 11 of 11
41176.DOC
The copyright in this document is vested in Basys Technology Limited. This document is issued
only for the purpose for which it is supplied. And on the express terms that it is to be treated as
commercially confidential and that it may not be reproduced in whole or in part, or used or
disclosed to others for any purpose except as authorised in writing by this company.

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