JAVAD GNSS LMR400 UHF Radio module User Manual

JAVAD GNSS, Inc. UHF Radio module

User manual

All contents in this manual are copyrighted by JAVAD GNSS.All rights reserved.The information contained herein may not be used, accessed, copied, stored, displayed, sold, modified, published, or distributed, or otherwise reproduced without express written consent from JAVAD GNSS.LMR400*User manualVersion 1.0Last Revised September 4, 2008*Other names for marketing purposes are AW400Tx, AW400Jv
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3www.javad.com TABLE OF CONTENTSPreface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5Terms and Conditions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5Regulatory Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7FCC Class A Compliance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7Canadian Emissions Labeling Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7Radio Apparatus Certificate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8Glossary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9Related Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10Technical Assistance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10Reader Feedback . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11Chapter 1. Product Features. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .131.1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .131.2. Operating at Ultra High Frequency Band . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .141.3. Modulation Technique. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .151.4. Network Topologies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .151.5. Operating Modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .161.6. Management Tools . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .161.7. Security . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16Chapter 2. General Description. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .192.1. Hardware Platform. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .192.2. Physical Interfaces. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .192.2.1. Serial Data/Command Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .192.2.2. RF Interface. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .202.2.3. Antennas . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .202.2.4. Power Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20Chapter 3. Command Line Interface. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .213.1. Command Line Interface Convention . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .22
4 www.javad.com3.1.1. Software Switching to Maintenance Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 223.1.2. Hardware Switching to Maintenance Mode. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 233.1.3. Switching to Data Mode. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 243.2. Networking Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 243.2.1. CONNECT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 243.2.2. LINK. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 253.3. Serial Interfacing Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 273.3.1. DPORT. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 273.3.2. MPORT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 273.4. Special Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 283.4.1. ALARM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 283.4.2. BOOT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 293.4.3. HELP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 293.4.4. SAVE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 293.4.5. SLEEP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 303.5. Diagnostics and Identification Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 303.5.1. INFO. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 303.5.2. STATE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31Chapter 4. Technical Specifications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 334.1. Technical Specifications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 344.1.1. Radio Transceiver. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 344.1.2. Radio Transmitter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 344.1.3. Radio Receiver . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 344.1.4. Modem . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 354.1.5. General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 364.2. External Connectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 364.3. RF Connectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37Safety Warnings. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39General Warnings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39Usage Warnings. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39UHF Radio Usage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41Warranty Terms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
5www.javad.com PREFACEThank you for purchasing this product. The materials available in this Manual (the “Manual”)have been prepared by JAVAD GNSS, Inc. (“JAVAD GNSS”) for owners of JAVAD GNSSproducts. It is designed to assist owners with the use of the LMR4001 and its use is subject tothese terms and conditions (the “Terms and Conditions”).Note: Please read these Terms and Conditions carefully.Terms and ConditionsUSE – JAVAD GNSS receivers are designed to be used by a professional. The user is expected tohave a good knowledge and understanding of the user and safety instructions before operating,inspecting or adjusting. Always wear the required protectors (safety shoes, helmet, etc.) whenoperating the receiver. COPYRIGHT – All information contained in this Manual is the intellectual property of, andcopyrighted material of JAVAD GNSS. All rights are reserved. You may not use, access, copy,store, display, create derivative works of, sell, modify, publish, distribute, or allow any third partyaccess to, any graphics, content, information or data in this Manual without JAVAD GNSS’express written consent and may only use such information for the care and operation of yourLMR400. The information and data in this Manual are a valuable asset of JAVAD GNSS and aredeveloped by the expenditure of considerable work, time and money, and are the result of originalselection, coordination and arrangement by JAVAD GNSS.TRADEMARKS – LMR400, JAVAD GNSS® are trademarks or registered trademarks of JAVADGNSS. Windows® is a registered trademark of Microsoft Corporation. Product and companynames mentioned herein may be trademarks of their respective owners.DISCLAIMER OF WARRANTY – EXCEPT FOR ANY WARRANTIES IN THIS MANUALOR A WARRANTY CARD ACCOMPANYING THE PRODUCT, THIS MANUAL AND THELMR400 ARE PROVIDED “AS-IS.” THERE ARE NO OTHER WARRANTIES. JAVAD GNSSDISCLAIMS ANY IMPLIED WARRANTY OF MERCHANTABILITY OR FITNESS FORANY PARTICULAR USE OR PURPOSE. JAVAD GNSS AND ITS DISTRIBUTORS SHALL1. Other names for marketing purposes are AW400Tx, AW400Jv
PrefaceTerms and Conditions6 www.javad.comNOT BE LIABLE FOR TECHNICAL OR EDITORIAL ERRORS OR OMISSIONSCONTAINED HEREIN; NOR FOR INCIDENTAL OR CONSEQUENTIAL DAMAGESRESULTING FROM THE FURNISHING, PERFORMANCE OR USE OF THIS MATERIALOR THE LMR400. SUCH DISCLAIMED DAMAGES INCLUDE BUT ARE NOT LIMITEDTO LOSS OF TIME, LOSS OR DESTRUCTION OF DATA, LOSS OF PROFIT, SAVINGS ORREVENUE, OR LOSS OF THE PRODUCT'S USE. IN ADDITION, JAVAD GNSS IS NOTRESPONSIBLE OR LIABLE FOR DAMAGES OR COSTS INCURRED IN CONNECTIONWITH OBTAINING SUBSTITUTE PRODUCTS OR SOFTWARE, CLAIMS BY OTHERS,INCONVENIENCE, OR ANY OTHER COSTS. IN ANY EVENT, JAVAD GNSS SHALLHAVE NO LIABILITY FOR DAMAGES OR OTHERWISE TO YOU OR ANY OTHERPERSON OR ENTITY IN EXCESS OF THE PURCHASE PRICE FOR THE LMR400. LICENSE AGREEMENT – Use of any computer programs or software supplied by JAVADGNSS or downloaded from a JAVAD GNSS website (the “Software”) in connection with theLMR400 constitutes acceptance of these Terms and Conditions in this Manual and an agreementto abide by these Terms and Conditions. The user is granted a personal, non-exclusive, non-transferable license to use such Software under the terms stated herein and in any case only with asingle LMR400 or single computer. You may not assign or transfer the Software or this licensewithout the express written consent of JAVAD GNSS. This license is effective until terminated.You may terminate the license at any time by destroying the Software and Manual. JAVAD GNSSmay terminate the license if you fail to comply with any of the Terms or Conditions. You agree todestroy the Software and manual upon termination of your use of the LMR400. All ownership,copyright and other intellectual property rights in and to the Software belong to JAVAD GNSS. Ifthese license terms are not acceptable, return any unused software and manual.CONFIDENTIALITY – This Manual, its contents and the Software (collectively, the“Confidential Information”) are the confidential and proprietary information of JAVAD GNSS.You agree to treat JAVAD GNSS' Confidential Information with a degree of care no less stringentthat the degree of care you would use in safeguarding your own most valuable trade secrets.Nothing in this paragraph shall restrict you from disclosing Confidential Information to youremployees as may be necessary or appropriate to operate or care for the LMR400. Suchemployees must also keep the Confidentiality Information confidential. In the event you becomelegally compelled to disclose any of the Confidential Information, you shall give JAVAD GNSSimmediate notice so that it may seek a protective order or other appropriate remedy.WEBSITE; OTHER STATEMENTS – No statement contained at the JAVAD GNSS website (orany other website) or in any other advertisements or JAVAD GNSS literature or made by anemployee or independent contractor of JAVAD GNSS modifies these Terms and Conditions(including the Software license, warranty and limitation of liability). SAFETY – Improper use of the LMR400 can lead to injury to persons or property and/ormalfunction of the product. The LMR400 should only be repaired by authorized JAVAD GNSS
PrefaceRegulatory InformationFCC Class A Compliance7www.javad.com warranty service centers. Users should review and heed the safety warnings in Chapter 5 on page39.MISCELLANEOUS – The above Terms and Conditions may be amended, modified,superseded, or canceled, at any time by JAVAD GNSS. The above Terms and Conditions will begoverned by, and construed in accordance with, the laws of the State of California, withoutreference to conflict of laws.Regulatory InformationThe following sections provide information on this product's compliance with governmentregulations.FCC Class A ComplianceThis equipment has been tested and found to comply with the limits for a Class A digital device,pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protectionagainst harmful interference when the equipment is operated in a commercial environment. Thisequipment generates, uses, and can radiate radio frequency energy and, if not installed and usedin accordance with the instruction manual, may cause harmful interference to radiocommunications. Operation of this equipment in a residential area is likely to cause harmfulinterference in which case the user will be required to correct the interference at his own expense.Note: Any changes or modifications to the equipment not expressly approved by the party responsiblefor compliance could void your authority to operate such equipment.Canadian Emissions Labeling RequirementsThis Class A digital apparatus meets all requirements of the Canadian Interference-CausingEquipment Regulations.Cet appareil numérique de la classe A respecte toutes les exigences du Réglement sur le matérielbrouilleur du Canada.
PrefaceGlossaryRadio Apparatus Certificate9www.javad.com GlossaryμC Micro ControllerAGC Automatic Gain ControlALC Automatic Output Power Level ControlAWGN Additive White Gaussian NoiseBER Bit Error RateBERT Bit Error Rate TestCLI Command Line InterfaceCMOS Complementary Metal-Oxide SemiconductorCRC Cyclic Redundancy CodeCTS Clear To SendCW Continues WaveDBPSK Differential Binary Phase Shift KeyingDC Direct CurrentDCD Data Carrier DetectDQPSK Differential Quadrature Phase Shift KeyingDSP Digital Signal ProcessingDSR Data Set ReadyDTE Data Terminal EquipmentDTR Data Terminal ReadyETSI European Telecommunications Standardization InstituteFCC Federal Communications CommissionFEC Forward Error CorrectionFIFO First-Input-First-OutputFSK Frequency Shift KeyingGMSK Minimum Shift Keying with Gaussian filteringGUI Graphical User InterfaceHPA High Power AmplifierI/O Input/OutputIF Intermediate FrequencyLED Light Emitting DiodeLLC Logic Link ControlLNA Low Noise AmplifierMAC Media Access ControlMSK Minimum-shift keyingMTBF Mean Time Between FailuresMTTR Mean Time To RepairPA Power AmplifierPCB Printed Circuit Board
PrefaceRelated InformationTechnical Assistance10 www.javad.comPDA Personal Digital AssistantPLL Phase-Lock LoopPMP Point-to-MultipointPSK Phase Shift KeyingPTP Point-to-PointQAM Quadrature Amplitude ModulationQPSK Quadrature Phase Shift KeyingRF Radio FrequencyRSSI Received Signal Strength IndicationRTK Real-time KinematicsRTS Request To SendRX Receive(r)SCADA Supervisor Control and Data AcquisitionSRAM Static Random Access MemoryTDD Time Division DuplexTDM Time Division MultiplexingTDMA Time Division Multiple AccessTPC Turbo Product CodesTPO Transmitter Output PowerTTL Transistor-Transistor-LogicTX Transmit(ter)UART Universal Asynchronous Receiver/TransmitterUHF Ultra High Frequency (300-3000 MHz)UIM User Identify ModuleVSWR Voltage Standing Wave RatioFIRMWARE A software program or a set of instructions embedded on ahardware deviceSOFTWARE Computer program for communication with a hardware deviceRelated InformationTechnical AssistanceIf you have a problem and cannot find the information you need in the product documentation,contact your local dealer. Alternatively, request technical support using the JAVAD GNSS WorldWide Web site at: www.javad.com
PrefaceRelated InformationReader Feedback11www.javad.com Reader FeedbackYour feedback about the supporting documentation helps us to improve the documentation witheach revision. To forward your comments, do one of the following:• Send an email to support@javad.com.• Complete the Reader Comment Form at the back of this manual and mail or fax itaccording to the instructions at the bottom of the form. Please mark it Attention:Documentation Group.All comments and suggestions become the property of JAVAD GNSS.
PrefaceRelated InformationReader Feedback12 www.javad.com
Chapter 113www.javad.com PRODUCT FEATURES1.1. IntroductionLMR400 DSP based integrated UHF Modem is the single board OEM wireless transceiverintended for SCADA, outdoor telemetry applications and transmission / receiving of differentialcorrections and additional information by terrestrial radio channels between two GNSS receivers. LMR400 is a half duplex, UHF Radio Transceiver developed to be integrated in a new JAVADGNSS Receiver (TRIUMPH). It takes incoming data from a JAVAD GNSS receiver through thestandard asynchronous serial port (CMOS/ TTL compatible), modulates it with GMSK, FSK,PSK or most spectrum efficient QAM modulation and transmits it at RF power output levels from15 dBm up to 30 dBm operating in UHF frequency band (406.1 to 470 MHz).Figure 1-1. LMR400The UHF transceiver is also capable of receiving RF signals through a 50 Ohm impedanceexternal antenna port. These signals are demodulated and output to the JAVAD GNSS receiver.LMR400 delivers a reliable radio link at up to 38.4 kbps over the air for the 25 kHz channelspacing, 19.2 kbps for 12.5 kHz, and 9.6 kbps for 6.25 kHz.
www.javad.com The module requires a regulated DC voltage power supply 4.2 V ± 5 %.The delivered product is a wireless system, which includes:• LMR400 – UHF Radio Transceiver;• “JRadio” – Windows based Unit Configuration and Maintenance Software Applicationrunning on a IBM PC compatible computer and connecting to the device over RS-232interface.The unit’s user settings can be changed through the built-in Command Line interface (CLI), orthrough JRadio. The system built-in diagnostic features provide the information required tomonitor and maintain user’s communications link. The output transmit power, receive signalstrength (RSSI), antenna/feed line condition, and data decode performance will be transmittedonline without application interruption.The product is designed for maximum performance and reliability even in the harshestenvironments. Plug and play at its best, robust, withstanding the most adverse of conditions.1.2. Operating at Ultra High Frequency BandLMR400 operates in UHF frequency band covering both licensed and unlicensed frequencies.The following are its key benefits:1. Operating in UHF frequency band will provide a non-line of sight connection.2. User selectable operation mode (licensed or unlicensed mode) is a feature, which makesJAVAD GNSS’s radio modems suitable for both licensed and unlicensed markets.3. Relatively low cost associated with installation equipment compared to the licensedwireless bands, since no capital is required to purchase spectrum rights.4. User-selectable channel spacing (25/12.5/6.25 kHz) is a feature, which makes LMR400modems attractive for distributors and system integrators.
Product FeaturesModulation Technique15www.javad.com 1.3. Modulation TechniqueThe design will be based on high-level modulation techniques which include:The following are its key benefits:1. Provides an excellent spectral efficiency (up to 2.3 bps/Hz for D16QAM), it is better thanany product available on the market.2. Forward Error Correction scheme (FEC) is based on Hamming Code known as a PerfectCode. Although Hamming Code is not very powerful, it is easy to implement and does notrequire much DSP resources.3. More powerful Reed-Solomon FEC coding scheme improves the tolerance to interferenceand ensures the highest link quality at distances range higher than 15 miles (24 km) androaming speeds of up to 60 mph (96 km/h).1.4. Network TopologiesLMR400 is developed to support Point-to-Point link (PTP) using Time Division Duplex (TDD)protocol and Point-to-Multipoint (PMP) network topology using Time Division Multiple Access(TDMA) protocol.The media access contention between wireless nodes in PMP network (Remotes) can be resolvedby an external controller (TRIUMPH GNSS Receiver) located on base station (Base). TheCONNECT command is intended to establish the link with a specific Remote.The RTS and CTS data flow control lines (Request-To-Send and Clear-To-Send) can be used onRemote side to support TDMA protocol implementation.6.25 kHz 12.5 kHz 25 kHzDBPSK – Differential Binary Phase Shift Keying 2.4 kbps 4.8 kbps 9.6 kbpsDQPSK – Differential Quadrature Phase Shift Keying 4.8 kbps 9.6 kbps 19.2 kbpsD8PSK – Eight Phase Shift Keying 7.2 kbps 14.4 kbps 28.8 kbpsD16QAM – Sixteen Quadrature Amplitude Modulation 9.6 kbps 19.2 kbps 38.4 kbpsGMSK – Minimal Shift Keying with Gaussian Filtering N\A**. N/A – Not Applicable4.8 kbps 9.6 kbps
Product FeaturesOperating Modes16 www.javad.com1.5. Operating ModesThe operating modes for LMR400 can be set through the CLI, or through JRadio. The followingoperating modes are available for LMR400:1. Simplex operating modes (Simplex Base, Remote and Repeater) are developed primarilyfor GNSS applications.2. Half Duplex Base, Remote and Repeater are the alternative to Simplex operating modesthat are implemented based on half-duplex TDD protocol with dynamic bandwidthallocation.3. Sleep mode has automatic transmitter activation by an internal real-time clock, or by anexternal controller through the data interface control lines (RTS).4. The programmable automatic channel scanning of the Preferred Channels is an alternativemode to the operation on the fixed Frequency Channel. In this mode, the Base is lookingfor a “free of use” frequency channel while a Remote is looking for a Base to interact with.5. Test mode supports the radio installation using Built-in test tools.1.6. Management ToolsThe built-in management tools along with JRadio running on PC compatible computer providethe following benefits:1. Easy user’s interface for system configuration and monitoring using well developed CLIor intuitive GUI.2. An ability to test the link using built-in test utilities without expensive external testequipment such as spectrum analyzer and BER test analyzer.3. An ability to monitor status, alarms and radio performance through the intuitive GUI.4. LMR400 firmware upgrades and improvements can be downloaded to the units over seriallink locally or over-the-air remotely.Note: Downloading over-the-air remotely is not requested by JAVAD GNSS for first release.1.7. SecurityThe system will provide wireless media access protection as well as data encryption. Thefollowing are its key features and benefits:
Product FeaturesSecurity17www.javad.com 1. The Key Sequence generated by Pseudo-random generator scrambles the fully formattedframe (including Frame’s CRC). This provides the wireless media access protection.2. User selectable Frequency Hopping Pattern provides another level of the wireless mediaaccess protection.At the same time it allows operators to increase the number of links deployed in the samelocation.
Product FeaturesSecurity18 www.javad.com
Chapter 219www.javad.com GENERAL DESCRIPTION2.1. Hardware PlatformUHF module electronic hardware consists of Zero-IF RF Front-End and Digital Section based onBlackFin DSP micro processor. Both are located on a single PCB board.LMR400 radio modem utilizes ultra-wide dynamic range RF front-end developed specifically toprovide the adjacent channel power ratio and adjacent channel selectivity levels required by FCCPart 90 standards.Digital Section is responsible for:• Baseband modulation/demodulation;• MAC Protocol performance;• Serial Data Interface Control Logic (RTS and CTS).• System Initialization and configuration including initialization of configurable devices inthe RF frontend.Both factory and user specific configuration parameters will be stored in the flash memory.However, only user specific parameters can be changed on the field. The factory configurationincludes maximum allowed output power (500mW – unlicensed and 1 W – licensed), six-byteunique serial number, and unit specific calibration tables.2.2. Physical Interfaces2.2.1. Serial Data/Command InterfaceThe serial asynchronous interface allows connection to external serial devices. It is sharedbetween user data and unit’s command/status information. All commonly supported baud rates,parity and bit configurations are available up to 115.2 kbps for UART.
www.javad.com 2.2.2. RF InterfaceRF interface is a 50-ohm impedance matched standard MMCX connector as required byregulation. The RF interface can operate without damage to the unit under DC short and openconditions.The RF interface is protected against static discharge (15 kV air discharge, 8 kV contactdischarge) and unloaded output.Switching from UHF module to cell module operation mode and vice versa is provided on RFinterface in case if they share the same antenna.2.2.3. AntennasAntenna type depends on the site requirements, and may be directional or omni-directional. Theantenna must have a 50-ohm impedance matched interface with VSWR 2.0:1 or better.The Base transceiver is recommended to be mounted on an antenna mast that elevates the antennaa minimum of 40 feet above the average level of the terrain to support 15 miles distance range.2.2.4. Power InterfaceThe power interface allows connection to an unregulated DC power source. The DC power source(thirdparty or user supplied) must provide peak 7.5 W of DC power 4.2 V ± 5 %.
Chapter 321www.javad.com COMMAND LINE INTERFACEThe built-in user-friendly Command Line Interface (CLI) allows user to perform a fullconfiguration of the unit and read the statistics and alarm status. It is the most powerful tool toconfigure the unit. It makes changes to all possible settings that system will not be able todetermine automatically.The CLI commands allow user to configure and reconfigure the unit’s settings. The userconfiguration parameters that could be changed through the CLI are:• Data Port Settings- Baud Rate- Data Bits (8, 7)- Parity (Odd, Even, None)- Flow control (None or RTS/CTS)• Alarm Settings• Radio Operation ModesSee “Network Topologies” on page 15 for details.• Sleep modes- On/Off- Activate by internal real-time clock- Activate through RTS/CTS lines- Activate by external sense lines- Activate by any combination of the parameters mentioned beforeNote: The unit’s configuration that is set or modified through the CLI will be lost after unit’s reboot,unless the saving operation is used to store a new setting in the unit’s configuration file.The CLI commands also provide filing operations, which include:• Downloading- Unit’s Configuration files- Software Images• Uploading Unit’s Configuration files
Command Line InterfaceCommand Line Interface ConventionSoftware Switching to Maintenance Mode22 www.javad.com• Saving into the configuration files the configuration parameters modified through the CLI.3.1. Command Line Interface ConventionThe following convention is implemented in AW400Tx Command Line Interface (CLI):• The Carriage Return/Line Feed (CR/LF, 0x0D/0x0A) is a command delimiter.• The Carriage Return/Line Feed (CR/LF, 0x0D/0x0A) is a reply delimiter followed by the“CLI>” prompt if Echo option is On.• The Carriage Return/Line Feed (CR/LF, 0x0D/0x0A) is a reply delimiter if Echo option isOff (default option).• The 2-digit number followed by “@” in the unit’s reply indicates the error code (refer toTable 1 for description), if Echo Off is selected, otherwise the error message is displayed.• A successfully performed command is replied by @00 code, if Echo Off is selected,otherwise the set value is replied.• A command with the certain [Parameter Name] and blank [Parameter List] displays thecurrent settings for a given parameter.• To set the mode ordered by CLI commands as permanent User Setting (the settingautomatically selected for the boot-up unit) the SAVE command must be asserted.Table 1. Command Line Interface Error Codes3.1.1. Software Switching to Maintenance ModeSoftware Switching to Maintenance Mode can be utilized if Data/Maintenance Port (DP/MP)control line is set to High Z (or 3.3v) level. To switch to Maintenance mode the special byte-sequences with special meanings are used:Error Code Short Description0x01 Command Syntax Error. A command followed by “/?” displays a command usage.0x02 The parameter has a format error. A command with the certain [Parameter Name] followed by “/?” displays the format and range of the variable.0x03 The parameter is out of allowed range. A command with the certain [Parameter Name] followed by “/?” displays the format and range of the variable.0x04 The command is not valid for specific radio model. To display the list of available commands, the HELP command must be used (see “Software Switching to Maintenance Mode” ).0x05 Unspecified Error
Command Line InterfaceCommand Line Interface ConventionHardware Switching to Maintenance Mode23www.javad.com • Escape-Sequence: “+++”or “++++” with 20 ms guard time before and after the commandcharacters• Escape-Acknowledge: “@00<CR><LF>” 20 ms toggling on CTS control line needed to acknowledge switching from Data to Maintenancemode and vice versa. In Maintenance mode, the unit’s serial port must keep CTS line alwaysactive (see also “MPORT” on page 27).Note: “++++”used for Topcon products only.Happy Flow1. In data-mode the unit starts looking for the Escape-sequence if there is no data from DTEfor more than 20 ms (Start Guard Time).2. If the unit detects the Escape-Sequence:• The transmitter continues sending over the air the data received from DTE before Escape-Sequence and buffers the data from DTE;• The Receiver immediately stops forwarding to DTE the data received over the air andbuffers it instead.3. The radio unit waits for 20 ms and then sends Escape-Acknowledge to DTE if there is nodata from DTE during 20 ms of Stop Guard Time. 4. The unit goes to Maintenance mode and discards Escape-Sequence from input buffer. Themodem is immediately ready to receive commands. At the same time it continuesbuffering the data received over the air since step 2.Escape-Sequence in DataDuring its waiting in step 3, the unit receives data from DTE:• The unit sends buffered Escape-Sequence from DTE to the air;• The unit sends all buffered data received from the air since step 2 to DTE and stays indata-mode (i.e. transmits data received from DTE over the air – including the justreceived, unexpected, data and forwards data received over the air to DTE.)3.1.2. Hardware Switching to Maintenance ModeAs alternative to Software Switching, the switching through the MP/DP control line can be used(this control line can be also used as Data Terminal Ready, DTR). To set Maintenance mode, the
Command Line InterfaceNetworking CommandsSwitching to Data Mode24 www.javad.comDTE must assert DTR signal active (0v level). By falling edge of DTR signal the unit goes toMaintenance mode and then sends Escape-Acknowledge to DTE („@00<CR><LF>“).20 ms toggling on CTS control line followed by Escape-Acknowledge response is needed toacknowledge switching from Data to Maintenance mode and vice versa. In Maintenance Mode,the unit’s serial port must keep Clear to Send (CTS) line always active (see also “MPORT” onpage 27).Note: The powered up radio modem by default goes to Data Mode regardless of DTR control linepolarity.3.1.3. Switching to Data Mode• DTE sends the CLI command „DATAMODE<CR><LF>“to the unit.• Unit answers with Escape-Acknowledge („@00<CR><LF>“) and immediately goes todatamode, so that the DTE can start sending data as soon as the Escape-Acknowledge hasbeen received.• If no valid CLI commands received from DTE within 1 minute, the unit will automaticallyswitch back to data-mode.Note: The data received over the air could be lost due to Rx buffer overflow if the unit stays inMaintenance mode longer then 15 second.3.2. Networking Commands3.2.1. CONNECTTo connect the radio unit through the local maintenance serial port or to establish the link with theremote unit in the Point-to-Multipoint network, the CONNECT command must be used.CONNECT [Unit_Numb] [/?]Where the Unit_Numb is an assigned decimal number for the unit to be connected. To get thecomplete unit list, the CONNECT command must be used with no parameter. The list of units inthe Point-to-Point link with the connection established with remote unit is shown in Figure 3-1:Figure 3-1. Connection ListUnit Serial Number ConnectBS 0035786599221 003574459923 C
Command Line InterfaceNetworking CommandsLINK25www.javad.com To connect to the Base unit, through the remote unit, the parameter (Unit_Numb) must be equal to0. To connect the local unit (Base or Remote), the parameter (Unit_Numb) must be equal to 0xFF.3.2.2. LINKThe LINK command is responsible for configuring radio’s operation mode. It has six parameterslisted below.LINK [Parameter Name] [Parameters List] [/?]Parameter Name Parameter ListPROT 1 – “Simplex Receiver”, a default setting for Remote units2 – “Simplex Transmitter”3 – “Half Duplex” specific for remote units (Reserved for future use)4 – “Half Duplex” specific for base unit (Reserved for future use)5 – “Full Duplex” specific for remote units (Reserved for future use)6 – “Full Duplex” specific for base unit (Reserved for future use)7 – “TRMB Receiver” (used with GMSK modulation, not supported)8 – “TRMB Transmitter” (used with GMSK modulation, not supported)9 – Reserved for future use10 – “Repeater” (ArWest Proprietary protocol)11 – “TRMB Repeater” (used with GMSK modulation, not supported)12 – “Transparent w/EOT” Receiver (used with GMSK modulation, not supported)13 – “Transparent w/EOT” Transmitter (used with GMSK modulation, not supported)RTR 0 – No Retransmission in the wireless cluster1 – There is RepeaterMOD 1 – DBPSK2 – DQPSK, a default settings3 – D8PSK4 – D16QAM5 – GMSK6 – 4FSKPWRB / PWRW 0 – Automatic Transmit Power control, a default setting for Remote units(15 – 30) / (30 – 1000) – RF output Power in dBm / mWCHAN Selects the frequency channel, CN = (1 – ((Maximum_frequency – Minimum_frequency) / 6.25 + 1)).The CN = 0 is reserved to set the Frequency Automatic scanning mode. The LINK CHAN 0 command also forces the radio modem to continue scanning starting from the channel currently selected by automatic scanning algorithm.In Automatic scanning mode, to check the frequency channel currently used or scanned, the STATE command must be used (see section 6.5.2).FHOP (1 – 32) – Frequency Hoping Pattern numberSCRAM 0 – No Scrambling (a default setting)(1 – 255) – Seed for Pseudo-Random Sequence Generator
Command Line InterfaceNetworking CommandsLINK26 www.javad.comNote: • LINK FHOP XX and LINK CHAN 0 commands can be processed only if FrequencyMap is defined.• The boot-up radio modem operating in automatic scanning mode must start frequencyscanning from first channel in the frequency map.• The remote unit will restart the frequency scanning process if there is no receive signalon the automatically selected channel.• The mode defined by RTR parameter is not valid for remote units.• The frequency defined by CHAN parameter is not valid if Frequency Hoping mode isselected.• In the Frequency Hoping mode, the Frequency Pattern generator must generate therandom numbers smaller than the number of frequencies listed in the unit’s frequencylist.• By default, there are no enrolled remote units in the network list.• The ENROL parameter is not valid for Remote units.• Automatic Transmit Power control (PWRB/PWRW 0) is not valid setting for Base unit.• The radio link with GMSK modulation uses a Non-ArWest protocol only.• “Full-duplex” protocol is a specific case of half-duplex MAC protocol when 50% ofbandwidth in the PTP link is allocated to remote unit.ENROL Enrolls the secondary units into the wireless cluster. The enrolled unit’s 6-digit serial numbers are delimited by commas SN1, SN2, SN3 ... SN31, SN32. The number of units in the cluster does not exceed 32. The SN = 0 is reserved to clear the list of enrolled remote units. (Reserved for future use)FEC 0 – Disable Forward Error Correction (FEC), a default setting1 – Enable Reed-Solomon encoding SPACE Sets channel spacing (see section 3.2.2):0 – 25kHz, a default setting1 – 12.5kHz2 – 6.25kHzMAP Retrieves the map of allowed frequency channels. Each entry in the retrieved channel map delimited by “<CR><LF>” consists of three configuration parameters separated by commas – Channel Number (CN = 1 to ((Maximum_frequency – Minimum_frequency) / 6.25 + 1)), channel spacing (0 –25kHz, 1 – 12.5kHz, 2 – 6.25kHz), and maximum allowed output power level in dBm (15 to 30). Escape-Acknowledge („@00<CR><LF>“) sequence is used as end-delimiter of the retrieved channel map. The number of entries in the channel map does not exceed 32.Parameter Name Parameter List
Command Line InterfaceSerial Interfacing CommandsDPORT27www.javad.com 3.3. Serial Interfacing Commands3.3.1. DPORTThe DPORT is an object that responsible for data port interface configurations like Bit Rate, FlowControl,etc.DPORT [Parameter Name] [Parameters List] [/?]3.3.2. MPORTThe MPORT is an object that responsible for maintenance serial port interface configurationssuch as data rate and number of bits in a byte.Parameter Name Parameter ListRATE 0 – Maintenance Port baud rate, a default setting1 – 1200 baud2 – 2400 baud3 – 4800 baud4 – 9600 baud5 – 14400 baud6 – 19200 baud7 – 38400 baud8 – 57600 baud9 – 115200 baud, a default settingBITS Set number of bits in one byte (8 or 7) 8 is a default settingPARITY 0 – None, a default setting1 – Odd2 – EvenFLOW 0 – None, a default setting1 – Not used2 – HW (RTS/CTS)3 – RS-485 TX Enable High4 – RS-485 TX Enable Low
Command Line InterfaceSpecial CommandsALARM28 www.javad.comMPORT [Parameter Name] [Parameters List] [/?]Note: • MPORT operates using 8 bits in one byte fixed (not configurable).• The radio modem with none-dedicated maintenance serial port must keep CTS linealways active in MPORT mode (DP/MP is low).3.4. Special Commands3.4.1. ALARMThe ALARM command is intended to set up the alarm indication mode and alarm control lines’behavior.ALARM [Parameter Name] [Parameters List] [/?]Note: The BERTH 1 / 2 is optional for TTL2 = 3 condition, otherwise the BERT alarm is offParameter Name Parameter ListRATE 0 – Auto.1 – 1200 baud2 – 2400 baud3 – 4800 baud4 – 9600 baud5 – 14400 baud6 – 19200 baud7 – 38400 baud8 – 57600 baud9 – 115200 baud, a default settingParameter Name Parameter ListTTL1 0 – TTL_OUT1 = logic “1”1 – TTL_OUT1 = TTL_IN, received from remote unit (default settings)TTL2 0 – TTL_OUT2 = logic “1”1 – TTL_OUT2 = TTL_IN2, received from remote unit (default settings)2 – TTL_OUT2 = SYNC Loss3 – TTL_OUT2 = BER > BERTH or SYNC LossBERTH 1– BER Threshold >10 –3 (default threshold level for BER)2 – BER Threshold BER >10 –2
Command Line InterfaceSpecial CommandsBOOT29www.javad.com 3.4.2. BOOTThe BOOT command is intended to reboot the unit using selected user settings. Two options areavailable, to use the default user settings defined by dealer or to use the settings defined by end-user BOOT [Parameter Name] [Parameters List] [/?] The BOOT command with no parameters selects the user settings defined by the prior“parameterized” BOOT commands.3.4.3. HELPThe HELP command types the list of all available commands:HELP – Display this usageBOOT – Reboot the unitLINK – RF Link Operation ModeDPORT – Data Port ConfigurationMPORT – Maintenance Port ConfigurationALARM – Alarm Indication and Alarm Control ConfigurationSLEEP – Sleep Mode ConfigurationCONNECT – Connect to Specified UnitSTATE – Display Status and StatisticsSAVE – Save Current Configuration into Configuration FileINFO – Display Product ID along with Hardware/Software VersionsDATAMODE – Exit Maintenance Mode[COMMAND] /? – Display Command Usage3.4.4. SAVEThe SAVE command is intended to store the unit’s currently used configuration into the UserConfiguration file. The configuration stored in the User Configuration file will be activated byautomatically after unit’s reboot.Parameter Name Parameter ListCFG 0 – selects the default user settings1 – selects user modified settings
Command Line InterfaceDiagnostics and Identification CommandsSLEEP30 www.javad.com3.4.5. SLEEPThe SLEEP command determines the sleep mode parameters. The sleeping LMR400 can beactivated by real-time CLK, DTR/RTS lines, and command received through TTL inputs. Theuser can select one, two, or all three conditions.SLEEP [Parameter Name] [Parameters List] [/?] 3.5. Diagnostics and Identification Commands3.5.1. INFOThe INFO command is used to retrieve the Radio ID along with its Hardware version, the loadedrealtime software version/revision and BootLoader’s version/revision.INFO [Parameter Name] [Parameters List] [/?]The INFO command without Parameter Name indicates all values as shown in Figure 3-2:Parameter Name Parameter ListCLK 0 – Do not activate by internal real-time clock(1 – 255) – Activate by internal real-time clock after 100 to 25500 msec of sleepingHW 0 – Do not activate through DTR/RTS lines1 – Activate through DTR/RTS linesTTL 0 – Do not activate by external sense lines1 – Activate by external sense linesGTS 0 – Disable Sleep mode (default)(1 – 255) – Go to sleep mode if there is no activity in 10 to 2550 msecParameter Name Parameter ListID Product IDSN Six bytes Serial Number (SN)HW 1.0 – hardware version in numeric “Major.Minor” formatSW Ver. 1.0 Rev. A – displays software’s version in numeric “Major.Minor” format and revision in numeric format (range from 01 to 99) for engineering releases and alphabetic format (A to Z) for manufacturing releasesBL Ver. 1.0 Rev. A – displays BootLoader’s version in numeric “Major.Minor”format and revision in numeric format (range from 01 to 99) for engineering releases and alphabetic format (A to Z) for manufacturing releases
Command Line InterfaceDiagnostics and Identification CommandsSTATE31www.javad.com Product ID = 6S/N = 000000 020303Hardware = Ver. 1.0Software = Ver. 1.0 Rev. BBootLoader = Ver. 1.0 Rev. A Figure 3-2. INFO Command Display3.5.2. STATEThe STATE command is used to check the state of the wireless link, the unit in the link, and thealarm control lines. To specify a radio unit (local or remote), the CONNECT command must beused in prior of STATE command using.STATE [Parameter Name] [Parameters List] [/?]Note: The indicated receive signal strength (RSSI) is equal to -147 dBm if there is no signal receivedfrom transmitter.Parameter Name Parameter ListTTL1 0/1 – State of TTL_IN1 lineTTL2 0/1 – State of TTL_IN2 lineRSSI -52 to -116 dBm – Indicates the Receive Signal Strength in dBmBER 1.0E-6 to 9.9E-3 – Indicates the BER levelFREQ 403.000000 to 470.000000 MHz – Displays the central frequency of the operating channelCHAN 1 to 9601 – Displays the selected or currently scanned frequency channelTEMP -30°C to 100°C – Displays the temperature inside of enclosureSYNC 1 – Indicates the established link, 0 – if link is not established yetPWRB Indicates unit’s output power level in dBm (see “CONNECT” on page 24)
Command Line InterfaceDiagnostics and Identification CommandsSTATE32 www.javad.com
Chapter 433www.javad.com TECHNICAL SPECIFICATIONSLMR400 DSP based integrated UHF Modem is the single board OEM wireless transceiverintended for SCADA, outdoor telemetry applications and transmission /receiving of differentialcorrections and additional information by terrestrial radio channels between two GNSS receivers.The UHF module provides half-duplex communication with transmitter output power of 1 W(+30 dBm) in the frequency band 406-470 MHz with channel spacing 25 / 12,5 / 6,25 kHz. Itsupports the following modulation methods: GMSK, DBPSK, DQPSK, D8PSK, D16QAM.
www.javad.com 4.1. Technical Specifications4.1.1. Radio Transceiver4.1.2. Radio Transmitter 4.1.3. Radio ReceiverComponent DetailsFrequency Range 406.1 - 470 MHz (USA)406.1-430; 450-470 MHz (Canada)Channel Spacing 25/12.5/6.25 kHzCarrier Frequency Stability ±1 ppm, compiles with FCC 2.1055, 90.213Modulation GMSK/DBPSK/DQPSK/D8PSK/D16QAM Communication Mode Half duplex, simplexComponent DetailsTransmitter Output Power +15... +30 dBm in 1 dB step / 50 ΩComplies with FCC 2.1046Carrier Frequency Stability +1 dB / -2 dBOccupied Bandwidth Complies with FCC 2.1049, 90.209Emission masks Complies with FCC 90.210Spurious Radiation Complies with FCC 2.1053, 90.210Component DetailsReceiver Sensitivity for DBPSK(@ BER 1x 10-4, over temperature -30 oC to +50 oC)-113 dBm for 25 kHz Channel Spacing,-114 dBm for 12.5 kHz Channel Spacing,-114 dBm for 6.25 kHz Channel SpacingReceiver Sensitivity for DQPSK(@ BER 1x 10-4, over temperature-30 oC to +50 oC)-110 dBm for 25 kHz Channel Spacing-111 dBm for 12.5 kHz Channel Spacing-111 dBm for 6.25 kHz Channel Spacing
Technical SpecificationsTechnical SpecificationsModem35www.javad.com 4.1.4. Modem Receiver Dynamic Range -119 to -52 dBmAdjacent Channel Selectivity 70 dB for 25 kHz Channel Spacing60 dB for 12.5 kHz Channel Spacing50 dB for 6.25 kHz Channel SpacingComponent DetailsInterface DSP UART (serial port)Interface Connector 16-lead ConnectorData Speed of Serial Interface 9600 - 115200 bpsData Rate of Radio Interface(25 kHz Channel Spacing) 9600 bps – DBPSK/GMSK19200 bps – DQPSK28800 bps – D8PSK38400 bps – D16QAMData Rate Radio Interface(12.5 kHz Channel Spacing) 4800 bps – DBPSK/GMSK9600 bps – DQPSK14400 bps – D8PSK19200 bps – D16QAMData Rate Radio Interface(6.25 kHz Channel Spacing) 2400 bps – DBPSK4800 bps – DQPSK7200 bps – D8PSK9600 bps – D16QAMForward Error Correction (FEC) Reed-Solomon Error CorrectionData scrambling YesComponent Details
Technical SpecificationsExternal ConnectorsGeneral36 www.javad.com4.1.5. GeneralFeatures:- DSP-Modem- Multi-Modulation Technologies- Zero-IF Technologies- 406.1-470 MHz Frequency Range- Up to 115200 bps Data Rate- Embedded Firmware Compensation for Operation at Extremely Low at High Temperatures- Compact Design4.2. External ConnectorsMain Connector (J100): 16-Lead Header Connector COMM CON INC P/N 3913-16G2.Component DetailsInput Voltage 4.2 V ± 5 %Power Consumption (average) 4 W – transmit with 50% duty cycle (1 W TPO)1 W – receive modeOperation Temperature -30oC - +50oCStorage Temperature -40oC - +80oCDimensions L: 81 mm x W: 46 mm x H: 7 / 13 mmWeight 32 gPIN # Signal Designator Signal name Deascription I/O Comments1 GND GND Ground - -2 DSP UART RX TXD Transmit Data TTL Input Serial Data Input3 DSP UART TX RXD Receive Data TTL Output Serial Data Output4 DPORT-5 DTR - TTL Input -5 DPORT-1 CTS Clear to Send TTL Output (0v) = Transmit buffer not full,(3.0v) = Transmit buffer full
Technical SpecificationsRF ConnectorsGeneral37www.javad.com 4.3. RF ConnectorsJ500 is Antenna Input / Output Connector: MMCX RIGHT ANGLE PCB JACK, EMERSONJOHNSON P/N 135-3701-311.6 TTLI-1 SLEEP Sleeps/wakes radioReceive only TTL Input (3.0v) = Sleep Radio,(0v) = Wake Radio7 DPORT-3 MDM_GRN LED control line usedby remotes to indicate that the remote has successfully acquired the signal from base station to indicateTTL Output (0v) = Carrier detected(synchronized) (3.0v) = No carrierdetected (not synchronized)8 DPORT-4 RTS Request to Send, gatesthe flow of receivedata from the radio tothe user on or offTTL Input (0v) = Receive data (RxD) enabled (3.0v) = Receive data (RxD) disabled9 DPORT-2 DSR - TTL Output -10 RES CONT RESCONT Reset Control TTL Input -11 TTLO-1 V_CTRL Voltage Control Line TTL Output (0v) = 4.2V DC(3.0v) = 3.6V DC12 TTLO-2 MDM_RED LED control line usrd to indicate TTL Output (0v) =Transmission(3.0v) = No Transmission13 GND GND Ground - -14 TTLI-2 ANT_DET Antenna detector input line TTL Input (0v) = No AntennaDetected(3.0v) = Antenna Detected15 VCC36 PWR Power Supply External 4.2/3.6 V16 VCC36 PWR Power Supply External 4.2/3.6 VPIN # Signal Designator Signal name Deascription I/O Comments
Technical SpecificationsRF ConnectorsGeneral38 www.javad.com
39www.javad.com SAFETY WARNINGSGeneral WarningsNote: To comply with RF exposure requirements, maintain at least 20 cm between the user and theUHF radio modem.Warning:The LMR400 is designed for intended for SCADA, outdoor telemetry applications andtransmission / receiving of differential corrections and additional information by terrestrialradio channels between two GNSS receivers. This product should never be used:– Without the user thoroughly understanding this manual.– After disabling safety systems or altering the product.– With unauthorized accessories.– Without proper safeguards at the measuring site.– Contrary to applicable laws, rules, and regulations.Danger:THE LMR400 SHOULD NEVER BE USED IN DANGEROUS ENVIRONMENTS.Usage WarningsIf this product has been dropped, altered, transported or shipped without proper packaging, orotherwise treated without care, erroneous measurements may occur.Note: Do not connect or disconnect equipment with wet hands, you are at risk of electric shock if youdo!The owner should periodically test this product to ensure it provides accurate measurements.Inform JAVAD GNSS immediately if this product does not function properly.Only allow authorized JAVAD GNSS warranty service centers to service or repair this product.
Safety WarningsUsage Warnings40 www.javad.com
41www.javad.com UHF RADIO USAGEMany countries require a license for radio users (such as the United States). Be sure you complywith all local laws while operating a UHF radio.Surveying in RTK mode has made UHF the most popular choice for communications betweenbase and rover receivers. Know the strengths and weaknesses of this technology to get the best useout of your receiver.The quality and strength of the UHF signals translates into range for UHF communications.The system’s range will greatly depend on the local conditions. Topography, localcommunications and even meteorological conditions play a major role in the possible range ofRTK communications.If needed, use a scanner to find clear channels for communication.
UHF Radio Usage42 www.javad.com
43www.javad.com WARRANTY TERMSJAVAD GNSS electronic equipment are guaranteed against defective material and workmanshipunder normal use and application consistent with this Manual. The equipment is guaranteed forthe period indicated, on the warranty card accompanying the product, starting from the date thatthe product is sold to the original purchaser by JAVAD GNSS’ Authorized Dealers1.During the warranty period, JAVAD GNSS will, at its option, repair or replace this product at noadditional charge. Repair parts and replacement products will be furnished on an exchange basisand will be either reconditioned or new. This limited warranty does not include service to repairdamage to the product resulting from an accident, disaster, misuses, abuse or modification of theproduct.Warranty service may be obtained from an authorized JAVAD GNSS warranty service dealer. Ifthis product is delivered by mail, purchaser agrees to insure the product or assume the risk of lossor damage in transit, to prepay shipping charges to the warranty service location and to use theoriginal shipping container or equivalent. A letter should accompany the package furnishing adescription of the problem and/or defect.The purchaser's sole remedy shall be replacement as provided above. In no event shall JAVADGNSS be liable for any damages or other claim including any claim for lost profits, lost savings orother incidental or consequential damages arising out of the use of, or inability to use, the product.1. The warranty against defects in JAVAD GNSS battery, charger, or cable is 90 days.
Warranty Terms44 www.javad.com
READER COMMENT FORMWe appreciate your comments and suggestions for improving this publication.I use the following JAVAD GNSS product _____________________________________for ________________________________________________________________________Please circle a response for each of the statements below:1 = Strongly Agree 2 = Agree 3 = Neutral 4 = Disagree 5 = Strongly DisagreeThe manual is well organized. 1 2 3 4 5I can find the information I want. 1 2 3 4 5The information in the manual is accurate. 1 2 3 4 5I can easily understand the instructions. 1 2 3 4 5The manual contains enough examples. 1 2 3 4 5The examples are appropriate and helpful. 1 2 3 4 5The layout and format are attractive and useful. 1 2 3 4 5The illustrations are clear and helpful. 1 2 3 4 5The manual is: too long just right too shortPlease answer the following questions:Which sections do you use the most? ____________________________________________What do you like best about the manual? _________________________________________What do you like least about the manual? _________________________________________OptionalName _____________________________________________________________________Company __________________________________________________________________Address______________________________________________________________________________________________________________________________________________Telephone ____________________________ Fax __________________________________Please mail to the JAVAD GNSS local office listed on the back cover. All comments andsuggestions become the property of JAVAD GNSS.www.javad.com
1731 Technology Drive, San Jose, CA 95110 USA Phone: +1(408)573-8100 Fax: +1(408)573-9100www.javad.comCopyright © JAVAD GNSS, Inc., 2008All rights reserved. No unauthorized duplication.

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