Siemens MC55 User Manual download pdf (Page 6)

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Introduction

Product Overview

The GPRS6055 / GPRS6055R are designed to provide tri-band GSM and GPRS for PC/104

based systems. Included on the GPRS6055 is a Siemens MC55 tri-band GSM cellular modem

and on the GPRS6055R is a Triorail TRM:2 tri-band GSM cellular modem for railroad

applications.

The GPRS6055 has a UART chip that permits communication with the serial port on the GSM

over the PC/104 bus without using other serial ports in the PC/104 system. The GSM module

supports an enhanced AT command set.

Board Features

GPRS6055ER Features

o Direct connections to the Siemens MC55/TRM:2 GSM module

o Tri-band GSM module

 GSM 900/1800/1900 MHz (MC55)

 GSM GSM-R/900/1800 MHz (TRM:2)

 GPRS Multislot Class 10

 AT command set

 SMS

 Fax

o 16 digital I/O

o PC/104 compliant

GSM Receiver

The GPRS6055 wireless GPRS/GSM modem unit provides a direct and reliable GPRS

connection to GPRS/GSM 900/1800/1900MHz mobile fields around the world. GPRS/GSM

connectivity is achieved using the Siemens MC55. This unit works in the 900/1800/1900MHz

bands.

Connect any standard quad-band GSM antenna directly to the MCX connector of the GPRS6055.

The antenna should be connected to the MC55 using a flexible 50-Ohm cable. In IDAN

installations the antenna connection is brought to the front side of the IDAN frame.

A SIM card socket is located on the solder side of the module. The SIM card can only be

removed when the MC55 has been placed in shutdown mode.

I/O Interfaces

The GPRS6055ER can be controlled and monitored by software through the a dedicated serial

port of the module.

16C550 Compatible UART

The GSM receiver module communicates through a dedicated UART channel allowing other

serial ports in the system to be free for the user.

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Siemens MC55 User Manual Page 6