
USB to Serial Gateway - USG-1-B-422
Page 3© 2009 Active Research Limited
Contents
Important Notices 4
Notices
4
Foreword
4
Introduction
4
USG-1 solutions
5
Solution #1 - Ground loops 5
Solution #2 - Different standards 5
Solution #3 - PC has no serial port 5
Features 5
Software updates
5
NMEA 0183 interfacing
6
The basics
6
The NMEA signals 6
The different NMEA standards 6
Opening the USG-1 6
USG-1 connections
7
Connecting NMEA 0183 devices
8
NMEA 0183 Input 8
NMEA 0183 (ISO-Drive) Output 8
Connecting to a Personal Computer RS232 port 9
Connecting to a 3-pin RS485 Listener (IEC 61162-2)
9
USB Driver Installation
10
Step by step guide 10
USB Conguration 12
Step by step guide 12
Troubleshooting guide 14
Diagnostic LED 14
Specications 15
Company Information
16
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