User's Manual

708UM0210-01 October 1999 Autotag-P User Manual Page: 4 of 33
{tc ""}1. INTRODUCTION
The Autotag-P is a long range, hands free, vehicle identification system used in vehicular access applications.
The configuration consists of:
- a Base Station transceiver,
- portable programmable Tags.
- a loop detector (optional)
Figure 1.1. Configuration
Both the Tags and the Base Station are microprocessor controlled. This allows for increased robustness of the
RF link, and flexibility with respect to coding and system configuration.
The Tag is positioned on the windscreen and is automatically triggered when the vehicle approaches within a
set distance of the Base Station unit. Upon confirming that a Base Station unit is being communicated with, the
Tag transmits a unique code. This code is received by the Base Station and is passed on to the associated
access controllers.