Vaisala MRG112 Manual de uso y cuidado
GPS Processor
MRG112
TECHNICAL
REFERENCE
M210642EN-B
August 2005
PUBLISHED BY
Vaisala Oyj Phone (int.): +358 9 8949 1
P.O. Box 26 Fax: +358 9 8949 2227
FIN-00421 Helsinki
Finland
Visit our Internet pages at http://www.vaisala.com/
© Vaisala 2005
No part of this manual may be reproduced in any form or by any means,
electronic or mechanical (including photocopying), nor may its contents be
communicated to a third party without prior written permission of the copyright
holder.
The contents are subject to change without prior notice.
Please observe that this manual does not create any legally binding obligations for
Vaisala towards the customer or end user. All legally binding commitments and
agreements are included exclusively in the applicable supply contract or
Conditions of Sale.
________________________________________________________________________________
VAISALA ________________________________________________________________________ 1
Table of Contents
CHAPTER 1
GENERAL INFORMATION............................................................................ 3
About This Manual ................................................................... 3
Contents of This Manual ....................................................... 3
Feedback............................................................................... 4
Safety......................................................................................... 4
General Safety Considerations ............................................. 4
ESD Protection...................................................................... 4
Technical Support .................................................................... 5
CHAPTER 2
PRODUCT OVERVIEW.................................................................................. 7
Introduction to GPS Processor MRG112 ............................... 7
CHAPTER 3
FUNCTIONAL DESCRIPTION....................................................................... 9
GPS Module and Connections................................................ 9
Programmable Logic Device................................................. 10
Serial Line Switch................................................................... 10
LED Lamp Operation.............................................................. 11
Reset Operation...................................................................... 12
Back-up Power ....................................................................... 12
CHAPTER 4
PARTS LIST ................................................................................................. 13
CHAPTER 5
DIAGRAMS AND BOARD LAYOUTS......................................................... 15
CHAPTER 6
TECHNICAL DATA ...................................................................................... 19
Signal Inputs........................................................................... 19
GPS Receiver Module......................................................... 19
General................................................................................ 20
APPENDIX A
CONNECTOR SIGNAL LAYOUT ................................................................ 21
APPENDIX B
Technical Reference ________________________________________________________________
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CONNECTOR SIGNAL LIST........................................................................23
APPENDIX C
FRONT PANEL CONNECTORS..................................................................25
COM1 Connector ....................................................................25
GPS ANT Connector...............................................................25
APPENDIX D
LIST OF SIGNALS .......................................................................................27
Chapter 1 ________________________________________________________ General Information
VAISALA ________________________________________________________________________ 3
CHAPTER 1
GENERAL INFORMATION
This chapter provides general notes for the product.
About This Manual
This manual provides information for installing, operating, and
maintaining the GPS Processor MRG112.
Contents of This Manual
This manual consists of the following chapters:
- Chapter 1, General Information, provides general notes for the
product.
- Chapter 2, Product Overview, introduces the GPS Processor
MRG112 features.
- Chapter 3, Functional Description, covers the connections and
operation of MRG112.
- Chapter 4, Parts List, contains a list of the MRG112 parts.
- Chapter 5, Diagrams and Board Layouts, lists the diagrams and
board layouts.
- Chapter 6, Technical Data, contains the MRG112 technical
specifications.
- Appendix A, Connector Signal Layout.
- Appendix B, Connector Signal List.
- Appendix C, Front Panel Connectors.
- Appendix D, List of Signals.
Technical Reference ________________________________________________________________
4 ___________________________________________________________________ M210642EN-B
Feedback
Vaisala Customer Documentation Team welcomes your comments
and suggestions on the quality and usefulness of this publication. If
you find errors or have other suggestions for improvement, please
indicate the chapter, section, and page number. You can send
Safety
General Safety Considerations
Throughout the manual, important safety considerations are
highlighted as follows:
NOTE Note highlights important information on using the product.
ESD Protection
Electrostatic Discharge (ESD) can cause immediate or latent damage
to electronic circuits. Vaisala products are adequately protected
against ESD for their intended use. However, it is possible to damage
the product by delivering electrostatic discharges when touching,
removing, or inserting any objects inside the equipment housing.
To make sure you are not delivering high static voltages yourself:
- Handle ESD sensitive components on a properly grounded and
protected ESD workbench. When this is not possible, ground
yourself to the equipment chassis before touching the boards.
Ground yourself with a wrist strap and a resistive connection cord.
When neither of the above is possible, touch a conductive part of
the equipment chassis with your other hand before touching the
boards.
- Always hold the boards by the edges and avoid touching the
component contacts.
Chapter 1 ________________________________________________________ General Information
VAISALA ________________________________________________________________________ 5
Technical Support
For technical questions, contact the Vaisala technical support:
E-mail [email protected]
Phone (int.) +358 9 8949 2789
Fax +358 9 8949 2790
Technical Reference ________________________________________________________________
6 ___________________________________________________________________ M210642EN-B
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Chapter 2 __________________________________________________________ Product Overview
VAISALA ________________________________________________________________________ 7
CHAPTER 2
PRODUCT OVERVIEW
This chapter introduces the GPS Processor MRG112 features.
Introduction to GPS Processor MRG112
The GPS Processor MRG112 is a plug-in E1-size Eurocard unit. It is
used to add GPS based wind finding capability to the sounding
system. It contains an Eurocard Base Unit and a GPS Module, which
is installed on the Base Unit. The signal from local GPS antenna is
connected via Base Unit to the GPS Module. Two serial data channels
are provided for external communication.
The GPS Module is a commercial GPS Navigation Unit. It is used for
receiving satellite orbital data, synchronizing with GPS time,
extracting local receiver position and velocity and for receiving local
GPS signals to be used in the differential wind calculation.
The Base Unit is an E1 size card, which contains system connector,
front plate and installation place, and connectors for GPS Module. The
local antenna connector and two status LED lamps are locating in the
front plate. Back-up power capacitor for GPS Module and an
automatic line switch are also locating in the base unit.
The automatic serial line switch is provided for main serial channel.
The switch enables the MRG112 to be used in parallel with optional
external GPS receiver using the same communication channel. At
power-up the MRG112 monitors the line voltage levels and does not
connect into the line if an active external device is present.
Technical Reference ________________________________________________________________
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