5
1.1 Introduction
This Operator’s Manual is designed to provide instructions in the operation of Discrete
Wireless, Inc. family of Advanced Generation wireless in-vehicle hardware MARCUS
Radio Module and software (MARCUSapplication) and Internet based Hosting
Services (DISCRETE Gateway). This manual provides a detailed description of the
MARCUSRadio Module with optional GPS board. This manual does not discuss the
DISCRETE Gateway.
Wireless Network: The MARCUSRadio Module is optimized to be utilized on the
Cingular Interactive Intelligent Wireless Data Network in the U.S. and other 900mhz
Mobitex based Packet Data Networks.
In addition, this manual describes how to install and operate MARCUSRadio Module.
1.2 Overview
The purpose of the MARCUSapplication is to track vehicles using a standard Internet
connection. The overall system consists of one or more mobile devices and the
DISCRETE Gateway. A tracking device can easily be attached to a vehicle. The
MARCUSRadio Module receives commands from the DISCRETE Gatewayto
monitor vehicle location using a Global Positioning System (GPS) receiver. The
MARCUSRadio Module can also monitor operational status and can collect data from
an externally connected RS-232 device. All of this information is transferred to the
DISCRETE Gatewaythrough a wireless communication link. The DISCRETE
Gatewayis capable of controlling and monitoring multiple mobile devices. The
position data received from the mobile devices is transferred to the DISCRETE
Gatewaywhere it is displayed on a Geographical Information System (GIS) utilizing
mapping technology within the Internet-based on the MARCUSapplication.
1.3 MARCUS
Radio Module Hardware
The mobile devices are small, can be easily and quickly attached to a vehicle, and will
receive commands, provide GPS position data and status information to the DISCRETE
Gatewayvia a wireless network
The GPS and wireless communication modules require antennas. In addition, the
device is powered by an externally supplied power supply; vehicle power (10-15 volts).
The devices are capable of surviving and functioning while exposed to environmental
conditions (heat, humidity, dirt, rocks), minor power interruptions, vibration, and
shock that are common during vehicular travel.
