User Manual

41176.DOC

Page 5 of 11

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 MPT-

1340 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.