User's Manual

Doc No： Topic：
User Manual of TomTom HD
Traffic Receiver Module 1 US
Ver：
1.1
Page：
6 / 39
Page 6 of 39
1. Introduction
HD Traffic Receiver Module is a GPRS modem module. It is a small, lightweight, low power
consumption and RoHS compliant device that allow digital communication services wherever a GSM
850, PCS 1900 network is present.
The module is provided with a 20-pin board-to-board connector. Power input connector is
necessary when link the modem PCB. It also provides a 50 Ohm Murata RF test port and antenna
contact pads.
From the interface point of view, the module provides the following:
z RS232 UART interface
z Two wires RS232 interface
z 2.75V output power source
z 1.8V/3.0V SIM card holder
z System reset
z Power ON/OFF function
z System power interface