Sierra Wireless GM47, GM48, GM47r5, GM48r5 Application Note

Application Note

Differences between GM47/GM48

and GM47r5/GM48r5

First edition (October 2003)

Sony Ericsson Mobile Communications. publishes this manual without making any warranty as to the

content contained herein. Further Sony Ericsson Mobile Communications. reserves the right to make
modifications, additions and deletions to this manual due to typographical errors, inaccurate information,
or improvements to programs and/or equipment at any time and without notice. Such changes will,
nevertheless be incorporated into new editions of this manual.

All rights reserved.

© Sony Ericsson Mobile Communications., 2003

Differences between GM47 and GM47r5

LZT 123 7733 R1A 3

Contents

1

INTRODUCTION....................................................................................................................4

2 PIN OUT CHANGES GM47/GM48 TO GM47R5/GM48R5................................................... 5

2.1 GM47/GM48 PINOUT ....................................................................................................... 5

2.2 GM47R5/GM48R5 PINOUT ............................................................................................... 6

2.3 BULLET-POINT DIFFERENCES ............................................................................................. 7

3 DETAILED DIFFERENCE DESCRIPTION ........................................................................... 8

3.1 IO# / ADC# (PINS 13, 22)................................................................................................. 8

3.1.1 Backwards compatibility ..........................................................................................8

3.2 RS232 FLOW CONTROL (PINS 32, 36, 37, 38, 39, 40) ....................................................... 8

3.2.1 Backwards compatibility ..........................................................................................8

3.3 LED / IO6 (PIN 33) ........................................................................................................... 9

3.3.1 Backwards compatibility ..........................................................................................9

3.4 IN# / O# (PINS 37 / 32, 36, 38, 40).................................................................................... 9

3.4.1 Backwards compatibility ..........................................................................................9

3.5 UART3 / IO# (PINS 43, 44)............................................................................................... 9

3.5.1 Backwards compatibility ..........................................................................................9

4 SOFTWARE DIFFERENCES .............................................................................................. 10

4.1 AT COMMANDS ............................................................................................................... 10

4.1.1 AT*E2IO................................................................................................................. 10

4.1.2 AT*E2RS232 ......................................................................................................... 10

4.2 INPUT & OUTPUT CROSS REFERENCE .............................................................................. 11

Differences between GM47 and GM47r5

LZT 123 7733 R1A 4

1 Introduction

This document sets out the differences both in electrical interface and in
software between the existing product, GM47 and the new enhanced
product, the GM47r5

It shows the compatibility between the two products and gives an overview
of the improvements implemented in the new product.