Table of Contents
Advertisement
Quick Links
Advertisement
Table of Contents
Related Manuals for Vaisala MRG112
Summary of Contents for Vaisala MRG112
- Page 1 GPS Processor MRG112 ECHNICAL EFERENCE M210642EN-B August 2005...
- Page 2 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...
-
Page 3: Table Of Contents
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.............. - Page 4 Technical Reference ________________________________________________________________ CONNECTOR SIGNAL LIST................23 APPENDIX C FRONT PANEL CONNECTORS..............25 COM1 Connector ..............25 GPS ANT Connector...............25 APPENDIX D LIST OF SIGNALS ..................27 2 ___________________________________________________________________ M210642EN-B...
-
Page 5: Chapter 1 General Information
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. -
Page 6: Feedback
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. -
Page 7: Technical Support
Chapter 1 ________________________________________________________ General Information Technical Support For technical questions, contact the Vaisala technical support: E-mail helpdesk@vaisala.com Phone (int.) +358 9 8949 2789 +358 9 8949 2790 VAISALA ________________________________________________________________________ 5... - Page 8 Technical Reference ________________________________________________________________ This page intentionally left blank. 6 ___________________________________________________________________ M210642EN-B...
-
Page 9: 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. - Page 10 Technical Reference ________________________________________________________________ This page intentionally left blank. 8 ___________________________________________________________________ M210642EN-B...
-
Page 11: Functional Description
Chapter 3 ______________________________________________________ Functional Description CHAPTER 3 FUNCTIONAL DESCRIPTION This chapter covers the connections and operation of MRG112. GPS Module and Connections The GPS module is an independent GPS receiver for local channel L1-band GPS signals. The module is installed on the main board of the MRG112. -
Page 12: Programmable Logic Device
Technical Reference ________________________________________________________________ rising edge is synchronized to the GPS time. The duration of the high state of the pulse is from 1 to 2 milliseconds. The 1PPS signal is connected via D1 and buffer D2 to the system connector X1. Programmable Logic Device The programmable logic device (PLD) D1 is used to control the reset function, the LED lamps, and the serial channel connections in the... -
Page 13: Led Lamp Operation
MRG112 is left unconnected. In the opposite case switches are closed and system starts communicate with MRG112. Switch 3 is always opened at the time of switch locking. The locked switch settings are permanent until next power-up or reset. -
Page 14: Reset Operation
A1 are connected to the PLD. Internal reset signal is active if the level of +5 V operating voltage is below 4.65 V. Both reset signals are combined in PLD and unit reset in MRG112 is activated if either one input is active. -
Page 15: Chapter 4 Parts List
Chapter 4 _________________________________________________________________Parts List CHAPTER 4 PARTS LIST This chapter contains a list of the MRG112 parts. Table 1 Special Parts Reference Part Number Description Assembly ref. 1 DRW214479 Front Panel Assembly ref. 2 6014 Tapped Spacer Assembly ref. 3 16166 "Type"... - Page 16 Technical Reference ________________________________________________________________ Table 4 Resistors Reference Part Number Description R7, 8, 12, 13, 16, 26100 Resistor, Chip, 100R 1.0% 100ppm 17, 24, 25 0603 R18-23, 41 15304 Resistor, Chip, 100R 1.0% 50ppm 1206 R1-6,9, 14, 15 25263 Resistor, Chip, 1k0 1.0% 100ppm 0603 R10, 11, 26-40, 25262...
-
Page 17: Diagrams And Board Layouts
Chapter 5 _________________________________________________ Diagrams and Board Layouts CHAPTER 5 DIAGRAMS AND BOARD LAYOUTS This chapter lists the diagrams and board layouts. Table 8 List of Diagrams Description Picture Code GPS Processor MRG112 Circuit Diagram DRW218338 GPS Processor MRG112 Components DRW218395 Layout VAISALA _______________________________________________________________________ 15... - Page 18 Technical Reference ________________________________________________________________ 0409-017 Figure 1 GPS Processor MRG112 Circuit Diagram 16 __________________________________________________________________ M210642EN-B...
- Page 19 Chapter 5 _________________________________________________ Diagrams and Board Layouts 0409-018 Figure 2 GPS Processor MRG112 Components Layout VAISALA _______________________________________________________________________ 17...
- Page 20 Technical Reference ________________________________________________________________ This page intentionally left blank. 18 __________________________________________________________________ M210642EN-B...
-
Page 21: Chapter 6 Technical Data
Chapter 6 ____________________________________________________________ Technical Data CHAPTER 6 TECHNICAL DATA This chapter contains the MRG112 technical specifications. Signal Inputs GPS Receiver Module Type G12L Features Number of channels Time to first fix 35/45 seconds (warm/cold) Frequency 1575 MHz (L1-band) Signal level -130 ... -
Page 22: General
Technical Reference ________________________________________________________________ Memory back-up min. 24 hours General Power requirements +5 V (±5%) 500 mA +12 V (±5%) 50 mA -12 V (±5%) 50 mA +Vstandby (+3...+30 V) 5 mA max. Operating conditions Temperature +5 ... +55 ºC Humidity Non-condensing Storage conditions Temperature... -
Page 23: Connector Signal Layout
Appendix A ___________________________________________________ Connector Signal Layout APPENDIX A CONNECTOR SIGNAL LAYOUT System connector is a 220-pin, 5-row female Connector. VAISALA _______________________________________________________________________ 21... - Page 24 Technical Reference ________________________________________________________________ Table 9 System Connector Signal Layout Pin/Row TXD2 RXD2B TXD1 RXD1 MRES# 1PPS +VSTBY +5 V +5 V +5 V +5 V +5 V +12 V +12 V -12 V -12 V 22 __________________________________________________________________ M210642EN-B...
- Page 25 Standby voltage 3 - 30 VDC +5 V a-e44 +5 V operating voltage +12 V a46, b46 +12 V operating voltage +12 V d46, e46 +12 V operating voltage NOTE Signal marked by # is 0-level active. VAISALA _______________________________________________________________________ 23...
- Page 26 Technical Reference ________________________________________________________________ This page intentionally left blank. 24 __________________________________________________________________ M210642EN-B...
- Page 27 Ground GPS ANT Connector Signal input for GPS local antenna. Type of connector: SMA female Corresponding cable connector: SMA male NOTE The center wire of the cable feeds the supply voltage +4.8 VDC to the antenna amplifier. VAISALA _______________________________________________________________________ 25...
- Page 28 Technical Reference ________________________________________________________________ This page intentionally left blank. 26 __________________________________________________________________ M210642EN-B...
- Page 29 Appendix D ____________________________________________________________ List of Signals APPENDIX D LIST OF SIGNALS The following signal names are used throughout the text and drawings of the MRG112. Table 12 List of Signals Signal Description 1PPS One-pulse-per-second 1PPSOUT One-pulse-per-second output Ground GRNLED Green LED...