JAVAD GNSS FH915 FH915 Radio Module User Manual JAVAD GNSS

JAVAD GNSS, Inc. FH915 Radio Module JAVAD GNSS

Users 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 GNSSFH915Operator’s ManualVersion 2.1Last Revised January 19, 2011
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3www.javad.com TABLE OF CONTENTSPreface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5Terms and Conditions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5Regulatory Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6FCC Class B Compliance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6Canadian Emissions Labeling Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7WEEE Directive . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7Technical Assistance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8Chapter 1. General Description. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 91.1. Physical Interfaces. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .91.1.1. Serial Data Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .91.1.2. Power Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .91.1.3. Power Consumption . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .91.1.4. Antennas . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10Chapter 2. Product Features. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 112.1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .112.2. Operating at Spread Spectrum Band . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .122.3. Modulation Technique. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .122.3.1. Media Access Control (MAC) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .132.3.2. Operating Modes. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .132.3.3. Management Tools . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .142.3.4. Security . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14Chapter 3. Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 153.1. FH915 connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .153.2. Antenna connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .153.3. Power connection. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .153.4. Serial RS-232 connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16Chapter 4. Command Line Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 174.1. Command Line Interface Convention . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .174.1.1. Software Switching to Maintenance Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .184.1.2. Hardware Switching to Maintenance Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . .19
4 www.javad.com4.1.3. Switching to Data Mode. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 194.2. Networking Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 204.2.1. CONNECT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 204.2.2. LINK. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 204.3. Serial Interfacing Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 224.3.1. DPORT. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 224.3.2. MPORT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 224.4. Special Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 234.4.1. ALARM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 234.4.2. BOOT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 234.4.3. HELP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 234.4.4. SAVE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 244.4.5. SLEEP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 244.5. Diagnostics and Identification Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 254.5.1. INFO. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 254.5.2. STATE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25Appendix A. Technical Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27A.1. Technical Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27A.1.1. Radio Transceiver . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27A.1.2. Radio Transmitter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27A.1.3. Radio Receiver . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28A.1.4. Modem. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28A.1.5. Compliance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29A.1.6. General. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29A.1.7. Mechanical Properties For End-product . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29A.2. External Connectors. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30A.2.1. Antenna Connector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30A.2.2. Main Connector. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30Appendix B. Spread Spectrum Radio Usage. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33Appendix C. Safety Warnings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35C.1. General Warnings. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35Appendix D. Warranty Terms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
5www.javad.com PREFACEThank you for purchasing this product. The materials available in this Manual (the “Manual”) have beenprepared by JAVAD GNSS for owners of JAVAD GNSS products. It is designed to assist owners with theuse of the FH915 and its use is subject to these terms and conditions (the “Terms and Conditions”).Note: Please read these Terms and Conditions carefully.Terms and ConditionsCOPYRIGHT – All information contained in this Manual is the intellectual property of, and copyrightedmaterial of JAVAD GNSS All rights are reserved. You may not use, access, copy, store, display, createderivative works of, sell, modify, publish, distribute, or allow any third party access to, any graphics,content, information or data in this Manual without JAVAD GNSS’ express written consent and may onlyuse such information for the care and operation of your FH915. The information and data in this Manualare a valuable asset of JAVAD GNSS and are developed by the expenditure of considerable work, timeand money, and are the result of original selection, coordination and arrangement by JAVAD GNSS.TRADEMARKS – FH915, JAVAD GNSS® are trademarks or registered trademarks of JAVAD GNSS.Windows® is a registered trademark of Microsoft Corporation. Product and company names mentionedherein may be trademarks of their respective owners.DISCLAIMER OF WARRANTY – EXCEPT FOR ANY WARRANTIES IN THIS MANUAL OR AWARRANTY CARD ACCOMPANYING THE PRODUCT, THIS MANUAL AND THE FH915 AREPROVIDED “AS-IS.” THERE ARE NO OTHER WARRANTIES. JAVAD GNSS DISCLAIMS ANYIMPLIED WARRANTY OF MERCHANTABILITY OR FITNESS FOR ANY PARTICULAR USE ORPURPOSE. JAVAD GNSS AND ITS DISTRIBUTORS SHALL NOT BE LIABLE FOR TECHNICALOR EDITORIAL ERRORS OR OMISSIONS CONTAINED HEREIN; NOR FOR INCIDENTAL ORCONSEQUENTIAL DAMAGES RESULTING FROM THE FURNISHING, PERFORMANCE ORUSE OF THIS MATERIAL OR THE FH915. SUCH DISCLAIMED DAMAGES INCLUDE BUT ARENOT LIMITED TO LOSS OF TIME, LOSS OR DESTRUCTION OF DATA, LOSS OF PROFIT,SAVINGS OR REVENUE, OR LOSS OF THE PRODUCT'S USE. IN ADDITION, JAVAD GNSS ISNOT RESPONSIBLE 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 SHALL HAVE NOLIABILITY FOR DAMAGES OR OTHERWISE TO YOU OR ANY OTHER PERSON OR ENTITY INEXCESS OF THE PURCHASE PRICE FOR THE FH915. LICENSE AGREEMENT – Use of any computer programs or software supplied by JAVAD GNSS ordownloaded from a JAVAD GNSS website (the “Software”) in connection with the FH915 constitutesacceptance of these Terms and Conditions in this Manual and an agreement to abide by these Terms and
PrefaceRegulatory InformationFCC Class B Compliance6 www.javad.comConditions. The user is granteJAVAD GNSSd a personal, non-exclusive, non-transferable license to usesuch Software under the terms stated herein and in any case only with a single FH915 or single computer.You may not assign or transfer the Software or this license without the express written consent of JAVADGNSS. This license is effective until terminated. You may terminate the license at any time by destroyingthe Software and Manual. JAVAD GNSS may terminate the license if you fail to comply with any of theTerms or Conditions. You agree to destroy the Software and manual upon termination of your use of theFH915. All ownership, copyright and other intellectual property rights in and to the Software belong toJAVAD GNSS. If these license terms are not acceptable, return any unused software and manual.CONFIDENTIALITY – This Manual, its contents and the Software (collectively, the “ConfidentialInformation”) are the confidential and proprietary information of JAVAD GNSS. You agree to treatJAVAD GNSS' Confidential Information with a degree of care no less stringent that the degree of care youwould use in safeguarding your own most valuable trade secrets. Nothing in this paragraph shall restrictyou from disclosing Confidential Information to your employees as may be necessary or appropriate tooperate or care for the FH915. Such employees must also keep the Confidentiality Informationconfidential. In the event you become legally compelled to disclose any of the Confidential Information,you shall give JAVAD GNSS immediate notice so that it may seek a protective order or other appropriateremedy.WEBSITE; OTHER STATEMENTS – No statement contained at the JAVAD GNSS website (or anyother website) or in any other advertisements or JAVAD GNSS literature or made by an employee orindependent contractor of JAVAD GNSS modifies these Terms and Conditions (including the Softwarelicense, warranty and limitation of liability). SAFETY – Improper use of the FH915 can lead to injury to persons or property and/or malfunction ofthe product. The FH915 should only be repaired by authorized JAVAD GNSS warranty service centers.Users should review and heed the safety warnings in Appendix C on page 35.MISCELLANEOUS – The above Terms and Conditions may be amended, modified, superseded, orcanceled, at any time by JAVAD GNSS. The above Terms and Conditions will be governed by, andconstrued in accordance with, the laws of the State of California, without reference to conflict of laws.Regulatory InformationThe following sections provide information on this product’s compliance with goverment regulationsFCC Class B ComplianceThis device complies with Part 15 of the FCC rules. Operation is subject to the following two conditions:1. This device may not cause harmful interference, and 2. This device must accept any interference received, including interference that may causeundesired operation.This equipment has been tested and found to comply with the limits for a Class B digital device, pursuantto Part 15 of the FCC rules. These limits are designed to provide reasonable protection against harmfulinterference in residential installations. This equipment generates, uses, and can radiate
PrefaceWEEE DirectiveCanadian Emissions Labeling Requirements7www.javad.com radio frequency energy, and if not installed and used in accordance with the instructions, may causeharmful interference to radio communications. However, there is no guarantee that interference will notoccur in a particular installation.If this equipment does cause interference to radio or television equipment reception, which can bedetermined by turning the equipment off and on, the user is encouraged to try to correct the interferenceby on or more of the following measures:• Reorient or relocate the receiving antenna.• Move the equipment away from the receiver.• Plug the equipment into an outlet on a circuit different from that to which the receiver is powered.• Consult the dealer or an experienced radio/television technician for additional suggestions.CAUTION:Any changes or modifications to the equipment not expressly approved by the party responsible forcompliance could void your authority to operate such equipment.Canadian Emissions Labeling RequirementsThis Class B digital apparatus meets all requirements of the Canadian Interference-Causing EquipmentRegulations.Cet appareil numérique de la classe B respecte toutes les exigences du Réglement sur le matérielbrouilleur du Canada.WEEE DirectiveThe following information is for EU-member states only:The use of the symbol indicates that this product may not be treated as household waste. By ensuring thisproduct is disposed of correctly, you will help prevent potential negative consequences for theenvironment and human health, which could otherwise be caused by inappropriate waste handling of thisproduct. For more detailed information about the take-back and recycling of this product, please contactyour supplier where you purchased the product or consult.
PrefaceTechnical AssistanceCanadian Emissions Labeling Requirements8 www.javad.comTechnical AssistanceIf you have a problem and cannot find the information you need in the product documentation, contactyour local dealer. Alternatively, request technical support using the JAVAD GNSS World Wide Web siteat: www.javad.com.
Chapter 19www.javad.com GENERAL DESCRIPTION1.1. Physical Interfaces1.1.1. Serial Data InterfaceThe serial asynchronous interface allows connection to external serial devices. It is shared between userdata and unit’s command/status information. All commonly supported baud rates, parity and bitconfigurations are available up to 115.2 kbps.1.1.2. Power InterfaceThe power interface allows connection to an unregulated DC power source. The DC power source (third-party or user supplied) must provide DC power of 4.0V±5% DC. The standalone unit’s RF interface is a 50-ohm impedance matched standard MMCX connector asrequired by regulation.1.1.3. Power ConsumptionPower consumption of the Spread Spectrum radio modem at continuous transmission mode with 1Woutput power level is less than 4500mW (refer to Table 1-1 for details).Table 1-1. Power ConsumptionOperating Mode / Description ConsumptionMaximum for continuous transmission with 1W output power level1 1. The supply voltage (pins 15 and 16 in user interface connector,) must be 3.6 to 4.2VDC to provide RF output power >500mW (licensed operation mode).< 4500 mWMaximum for Rx Full Operation Mode < 2000 mWAverage for Operation Mode with 30% Transmission duty cycle < 2000 mWAverage for Operation Mode with 50% Transmission duty cycle < 3000 mWSleep Mode 300 mWStandby Mode, ordered by SLEEP input pin 500 W
General DescriptionPhysical InterfacesAntennas10 www.javad.com1.1.4. AntennasAntenna type depends on the site requirements, and may be directional or omni-directional. Note that tosupport 8 miles distance range between Base station and FH915 unit, an antenna mast should elevate thebase antenna a minimum of 20 feet above the average level of the terrain.
Chapter 211www.javad.com PRODUCT FEATURES2.1. IntroductionFH915 radio transceiver is designed as universal license-free modem. It uses 902-928 MHz ISM(industrial, scientific and medical) license free USA/Australia band frequency hopping transmissiontechniques for excellent reliability in noisy plant environments and European CEPT license free 868-870MHz band, allocated for narrow band telemetry, alarms and data transfer applications.Thanks to its small size, and multiple functions, the FH915 is specifically well suited for amount ofapplications within industrial complexes, for various indoor as well as medium-range applications.The unmatched features of FH915 include data scrambling, frequency hopping, user selectable transmitoutput power level, low power consumption sleep modes, repeater mode, autoscanning for base and plug-and-play installation for remote terminals.Figure 2-1. FH915FH915 supports two separate Application Data and Maintenance modes of single UART serial port. Thebuilt-in software tools provide the wireless link testing, unit’s status and error statistics monitoring as wellas unit’s settings change over the air. The firmware of the FH915 radio transceiver resides in a flashmemory. The updating of the radio transceiver programs is entirely software-based. The flash memory isre-programmable through an UART interface or over the air.The FH915 is developed for exacting customer needs and to have pin-to-pin compatibility with OEMradios of JAVAD GNSS.The Spread Spectrum transceiver is also capable of receiving RF signals through a 50 Ohm impedanceexternal antenna port. The delivered product is a wireless system, which includes:• FH915 – Spread Spectrum Radio Transceiver;• AWLaunch – Windows based Unit Configuration and Maintenance Software Application runningon a IBM PC compatible computer and connecting to the device over RS-232 interface or USB-to-Serial adapter.
Product FeaturesOperating at Spread Spectrum Band12 www.javad.comThe setting can be done through the built-in Command Line interface (CLI), or through the configurationand maintenance application software running either on PC – AWLaunch.The diagnostic feature of the FH915 system provides the information to monitor and maintain user’scommunications link. The output transmit power, receive signal strength (RSSI), antenna/feedlinecondition, and data decode performance are transmitted online without application interruption. The product is designed for maximum performance and reliability even in the harshest environments.Plug and play at its best, robust, withstanding the most adverse of conditions.2.2. Operating at Spread Spectrum BandThe Spread Spectrum (SSR) technique in which a signal is transmitted on a bandwidth considerablylarger than the frequency content of the original information.Spread-spectrum telecommunications is a signal structuring technique that employs direct sequence,frequency hopping or a hybrid of these, which can be used for multiple access and/or multiple functions.This technique decreases the potential interference to other receivers while achieving privacy. Spreadspectrum generally makes use of a sequential noise-like signal structure to spread the normallynarrowband information signal over a relatively wideband (radio) band of frequencies. The receivercorrelates the received signals to retrieve the original information signal. 2.3. Modulation TechniqueFH915 radio transceiver uses two bands: 902-928 MHz ISM license free USA band and European CEPTlicense free 868-870 MHz band. In 902-928 MHz band FH915 radio uses frequency hoppingtransmission techniques.The design is based on high-level modulation techniques which include:The following are its key benefits:• Ten optimized Frequency Hopping Patterns provides simultaneous operating of several units withminimum of mutual interference. • FEC coding scheme used with GMSK and 4FSK modulations is based on Convolutional code • and the Viterbi decoding algorithm which is the most resource-consuming, but it does Maximumlikelihood decoding. Modulation/ Channel Spacing 902.0-928.0GMSK – Minimal Shift Keying with Gaussian Filtering 64.0 kbps, 128 *200.0 kHz4FSK- Four Level Frequency Shift Keying (planned) 128.0 kbps, 128 *200.0 kHz
Product FeaturesModulation TechniqueMedia Access Control (MAC)13www.javad.com In 868-870 MHz band the design is based on high-level modulation techniques which includeThe following are its key benefits:• FEC coding scheme used with GMSK and 4FSK modulations is based on Convolutional code andthe Viterbi decoding algorithm. • Powerful FEC scheme used with JAVAD GNSS proprietary frame format improves the toleranceto interference and ensures the highest link quality at distances range higher than 8 miles (13 km)and roaming speeds of up to 60 mph (96 km/h).2.3.1. Media Access Control (MAC)The following Media Access protocols are available for FH915 modem:1. Simplex protocols (Simplex Base, Simplex Remote, and Repeater) are developed primarily forGNSS applications.2. Half Duplex protocols (Half Duplex Base, Half Duplex Remote and Repeater) are the alternativeto Simplex protocols that provide bidirectional link with the dynamic bandwidth allocation.Note: Repeater decreases the user data rate. The user data rate in the link with the repeaters is equal to C /[(n+1]), where C is a link throughput determined by the modulation technique and n is a number ofrepeaters in the chain. Half duplex Base, Half duplex Remote and repeater are not supported in currentrelease.3. Sleep mode is an investment provided by MAC sub-layer that provides additional power saving.The wakeup from Sleep mode is user selectable either by an internal real-time clock, or by anexternal controller through the data interface control lines (RTS or DTR), or by SLEEP input line(CMOS/TTL compatible input lines).2.3.2. Operating ModesThe operating modes for FH915 can be set through the CLI, and/or through AWLaunch. The followingoperating modes are available for FH915:1. The sleep mode has automatic transmitter activation by an internal real-time clock, or by anexternal controller through the data interface control lines (RTS and DTR), or by the triggering ofthe external Sense Inputs.2. Adaptive RF Power control used by Remotes minimizes the transmit power levels andinterference to co-channel and adjacent channel users. It also reduces the Remote’s powerconsumption.Modulation/ Channel Spacing 12.5 kHz 20 kHz 25 kHzGMSK – Minimal Shift Keying with Gaussian Filtering 4.8 kbps 7.5 kbps 9.6 kbps4FSK- Four Level Frequency Shift Keying (planned) 9.6 kbps 15 kbps 19.2 kbps
Product FeaturesModulation TechniqueManagement Tools14 www.javad.com2.3.3. Management ToolsThe built-in management tools along with AWLaunch (configuration and monitoring softwareapplication) will provide the following benefits:1. Easy user’s interface for system configuration and monitoring using well developed CLI orintuitive GUI.2. An ability to monitor status, alarms and radio performance through the intuitive GUI.3. Software upgrades and improvements can be downloaded from AWLaunch to the units connectedwith PC/PDA.2.3.4. SecurityThe system provides wireless media access protection as well as data scrambling. The following are itskey features and benefits:1. The Key Sequence generated by Pseudo-random generator scrambles the fully formatted frame(including Frame’s CRC). This provides the wireless media access protection.2. User selectable Frequency Hopping Pattern provides another level of the wireless media accessprotection. At the same time it allows operators to increase the number of links deployed in thesame location.
Chapter 315www.javad.com CONNECTION3.1. FH915 connectionThe FH915 connected directly to Evaluation Kit (p/n 99-571010-01) by its 16-Lead Header Connector,ECS Corp., as it shown on the Figure 2-1.Figure 3-1. FH915 connected to Evaluation Kit3.2. Antenna connectionThe FH915 may be connected to external antenna using TNC to MMCX RA Antenna cable (included inthe Kit).3.3. Power connectionThe FH915 powered through Evaluation Kit and Power Cable (included in Kit). The Banana plugs ofpower cable may be connected to any available laboratory power supply, battery or other power sourcewith power parameters, suitable for particular FH915 power specifications. CAUTION:Evaluation Kit does not provide any over-voltage protection. Connecting Evaluation Kit to voltageexceeding particular FH915 power voltage range may cause damage of FH915 and Evaluation Kitboard. to Antennato Power Supply6-20 V DC, 1AOEM BoardAdapter
ConnectionSerial RS-232 connection16 www.javad.comCAUTION:Evaluation Kit provides reverse polarity protection only in voltages range, specified for particularFH915.3.4. Serial RS-232 connectionA standard Null-Modem cable (included in Kit) with DB-9 Female connectors on both ends may be usedto connect PC COM_X port with Serial port on adapter.Adapter’s DB-9 male connector external view and pinout is shown on the Figure 3-2.Figure 3-2. DB-9 Male connectorTable 3-1. DB-9 Male Connector SpecificationPlease, refer to particular external device Serial port specification to select and use right Serial cable forproper connection.Pin Signal Name Dir Description1 - - Not used2 RXD I Receive Data 3 TXD O Transmit Data 4 DTR O Data Terminal Ready 5 GND - Signal Ground6 DSR I Data Set Ready 7 RTS O Request To Send 8 CTS I Clear To Send 9 - - Not used
Chapter 417www.javad.com COMMAND LINE INTERFACEThe built-in user-friendly Command Line Interface (CLI) allows user to perform a full configuration ofthe unit and read the statistics and alarm status. It is the most powerful tool to configure the unit. It makeschanges to all possible settings that system will not be able to determine automatically.The CLI commands allow user to configure and reconfigure the unit’s settings. The user configurationparameters 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 Modes• 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 thesaving 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• Saving into the configuration files the configuration parameters modified through the CLI.4.1. Command Line Interface ConventionThe following convention is implemented in FH915 Command Line Interface (CLI):
Command Line InterfaceCommand Line Interface ConventionSoftware Switching to Maintenance Mode18 www.javad.com• The Carriage Return/Line Feed (CR/LF, 0x0D/0x0A) is a command delimiter. Commanddelimiters CR or LF or CR+LF are valid. • 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 is Off(default option).• The 2-digit number followed by “@” in the unit’s reply indicates the error code (refer to Table 4-1 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 theset value is replied.• A command with the certain [Parameter Name] and blank [Parameter List] displays the currentsettings for a given parameter.• To set the mode ordered by CLI commands as permanent User Setting (the setting automaticallyselected for the boot-up unit) the SAVE command must be asserted.• [/?] orders to show the help information for the given command.• Commands are not key sensitive; small, none capital characters can be used to enter CLIcommands.Table 4-1. Command Line Interface Error Codes4.1.1. Software Switching to Maintenance ModeSoftware Switching to Maintenance Mode can be utilized if Data/Maintenance Port (DP/MP) control lineis set to High Z (or 3.3v) level. To switch to Maintenance mode the special byte-sequences with specialmeanings are used:• Escape-Sequence: “+++” with 20 ms guard time before and after the command characters• Escape-Acknowledge: “@00<CR><LF>” 20 ms toggling on CTS control line needed toacknowledge switching from Data to Maintenance mode and vice versa. In Maintenance mode,the unit’s serial port must keep CTS line always active.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 Mode19www.javad.com Happy Flow1. In data-mode the unit starts looking for the Escape-sequence if there is no data from DTE formore 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 and buffers itinstead.3. The radio unit waits for 20 ms and then sends Escape-Acknowledge to DTE if there is no datafrom DTE during 20 ms of Stop Guard Time. 4. The unit goes to Maintenance mode and discards Escape-Sequence from input buffer. The modemis immediately ready to receive commands. At the same time it continues buffering the datareceived 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 in data-mode(i.e. transmits data received from DTE over the air – including the just received, unexpected, dataand forwards data received over the air to DTE.)4.1.2. Hardware Switching to Maintenance ModeAs alternative to Software Switching, the switching through the MP/DP control line can be used (thiscontrol line can be also used as Data Terminal Ready, DTR). To set Maintenance mode, the DTE mustassert DTR signal active (0v level). By falling edge of DTR signal the unit goes to Maintenance mode andthen 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’sserial port must keep Clear to Send (CTS) line always active (see also “MPORT” on page 22).Note: The powered up radio modem by default goes to Data Mode regardless of DTR control line polarity.4.1.3. Switching to Data Mode• DTE sends the CLI command “DATAMODE<CR>” or „DATAMODE<LF>” to the unit.Note: Command “DATAMODE<CR><LF>“will be accepted as command “DATAMODE<CR>” and DataByte=0x0A.
Command Line InterfaceNetworking CommandsCONNECT20 www.javad.com• Unit answers with Escape-Acknowledge („@00<CR><LF>“) and immediately goes to datamode,so that the DTE can start sending data as soon as the Escape-Acknowledge has been received.• If no valid CLI commands received from DTE within 1 minute, the unit will automatically switchback to data-mode.Note: The data received over the air could be lost due to Rx buffer overflow if the unit stays in Maintenancemode longer then 15 second.4.2. Networking Commands4.2.1. CONNECTTo connect the radio unit through the local maintenance serial port or to establish the link with the remoteunit 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 the completeunit list, the CONNECT command must be used with no parameter. The list of units in the Point-to-Pointlink with the connection established with remote unit is shown in Figure 4-1:Figure 4-1. Connection ListTo disconnect from the remote unit and connect to the local unit, the parameter (Unit_Numb) must beequal to 0x00.4.2.2. LINKThe LINK command is responsible for configuring radio’s operation mode. It has six parameters listedbelow.LINK [Parameter Name] [Parameters List] [/?]LINK commands are as common so specific for two bands: 902-928 MHz band and 868-870 MHz band.Commands common for two bands:Unit Serial Number ConnectBS 0035786599221 003574459923 CParameter Name Parameter ListFEC 0 – Disable Forward Error Correction, a default setting (see note below)1 – Enable Forward Error Correction (see note below)FHOP (0-9) - Frequency Hoping Pattern numbers for USA;(10-19) - Frequency Hoping Pattern numbers for Australia;
Command Line InterfaceNetworking CommandsLINK21www.javad.com Note: LINK FHOP and LINK CHAN commands can be processed only if Frequency Map is defined.Auto-scanning may not start automatically, only when scanning requested via CLI command (see LINKCHAN 0 and STATE commands).“Half Duplex” Base and “Half Duplex” Remote protocols are not supported in current release. LINKADDR and LINK CLKCORR commands are not recommended for using on site of End Users.Commands specific for 902-928 MHz band:Commands specific for 868-870 MHz band:MOD 5 - GMSK, a default settings6 - 4FSK;PWRB / PWRW 0 – Automatic Transmit Power control, a default setting for Remote units(15 – 30) / (30 – 1000) – RF output Power in dBm / mWPWRB / PWRW (15 – 30) / (30 – 1000) – RF output Power in dBm / mWRTR 0 – No Retransmission in the wireless cluster1 – There is Repeater in the wireless cluster, valid for Base onlySCRAM 0 – No Scrambling (a default setting)(1 – 255) – Seed for Pseudo-Random Sequence GeneratorFEC 0 – Disable Forward Error Correction (FEC), a default setting1 – Enable Reed-Solomon encodingCHAR (0 – 255) – defines the ASCI code of the symbol indicating the end of a datachunk of “Transparent w/EOT Character” protocol.Parameter Name Parameter ListParameter Name Parameter ListPWRB / PWRW 0 – Automatic Transmit Power control, a default setting for Remote units(15 – 30) / (30 – 1000) – RF output Power in dBm / mWPTRN 0…9 - Frequency hopping in ISM license free USA 902-928 MHz band;10…19 - Frequency hopping in ISM license free 902-928 MHz band specified for Australia;Parameter Name Parameter ListCHAN Selects the Channel Number: CN = 1 to 32. Each Channel is defined by three parameters: Carrier Frequency, Channel Spacing and Allowed Output Power level. CN = 0 is reserved to set up 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 channel currently used or scanned, the STATE command must be used PROT 1 - “Simplex Receiver” a default setting (see note below) 2 - “Simplex Transmitter” 3 - “Half Duplex” Base (reserved) 4 - “Half Duplex” Repeater (reserved)9 - “Transparent w/EOT” Repeater (used with GMSK and 4FSK) 10 - “Repeater” (JAVAD GNSS Proprietary Simplex) 12 - “Transparent w/EOT” Receiver (used with GMSK and 4FSK) 13 - “Transparent w/EOT” Transmitter (used with GMSK and 4FSK) 17 - “Fast Sync” Receiver (used with GMSK and 4FSK) 18 - “Fast Sync” Transmitter (used with GMSK and 4FSK) 19 - “Transparent w/EOT Character” Receiver (used with GMSK and 4FSK) 20 - “Transparent w/EOT Character” Transmitter (used with GMSK and 4FSK)
Command Line InterfaceSerial Interfacing CommandsDPORT22 www.javad.comNote: The frequency defined by CHAN parameter is not valid if Frequency Hoping mode is selected. “HalfDuplex” Base and “Half Duplex” Remote protocols are not supported in current release.4.3. Serial Interfacing Commands4.3.1. DPORTThe DPORT is an object that responsible for data port interface configurations like Bit Rate, FlowControl, etc.DPORT [Parameter Name] [Parameters List] [/?]4.3.2. MPORTThe MPORT is an object that responsible for maintenance serial port interface configurations such as datarate and number of bits in a byte.MPORT [Parameter Name] [Parameters List] [/?]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 1 – Not used2 - HW (RTS/CTS), a default settingParameter 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 setting
Command Line InterfaceSpecial CommandsALARM23www.javad.com Note: JAVAD GNSS radio modem’s does not support data flow and parity on the maintenance serial port.MPORT operates using 8 bits in one byte fixed (not configurable).The radio modem with none-dedicated maintenance serial port must keep CTS line always active inMPORT mode (DP/MP is low).4.4. Special Commands4.4.1. ALARMThe ALARM command is intended to set up the alarm indication mode and alarm control lines’ behavior.ALARM [Parameter Name] [Parameters List] [/?]The Alarm LED must indicate the SYNC Loss and BER exceeding the defined threshold.Note: The BERTH 1 / 2 is optional for TTL2 = 3 condition, otherwise the BERT alarm is off4.4.2. 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.4.4.3. HELPThe HELP command types the list of all available commands:HELP – Display this usageParameter 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 –2Parameter Name Parameter ListCFG 0 – selects the default user settings1 – selects user modified settings
Command Line InterfaceSpecial CommandsSAVE24 www.javad.comBOOT – 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 Usage4.4.4. 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 is activated by automaticallyafter unit’s reboot.4.4.5. SLEEPThe SLEEP command determines the sleep mode parameters. The sleeping FH915 can be activated byreal-time CLK, DTR/RTS lines, and command received through TTL inputs. The user can select one,two, or all three conditions.SLEEP [Parameter Name] [Parameters List] [/?] 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 msec
Command Line InterfaceDiagnostics and Identification CommandsINFO25www.javad.com 4.5. Diagnostics and Identification Commands4.5.1. INFOThe INFO command is used to retrieve the Radio ID along with its Hardware version, the loaded real-time software version/revision and BootLoader’s version/revision.INFO [Parameter Name] [Parameters List] [/?]The INFO command without Parameter Name indicates all values:FH915 Spread Spectrum Radio Modem.Product ID =41S/N = 11327Hardware =2.0Firmware =2.1.9BootLoader =4.034.5.2. STATEThe STATE command is used to check the state of the wireless link, the unit in the link, and the alarmcontrol lines. To specify a radio unit (local or remote), the CONNECT command must be used in prior ofSTATE command using.STATE [Parameter Name] [Parameters List] [/?]The STATE command without Parameter Name indicates all values:Parameter Name Parameter ListID Product IDSN Six bytes Serial Number (SN)HW 1.0 – hardware revisionFW 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 BootLoader Version 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 902.000000 to 928.000000 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 enclosure
Command Line InterfaceDiagnostics and Identification CommandsSTATE26 www.javad.comTTL_IN1 = 0TTL_IN2 = 1RSSI = -110 dBmBER = < 2.3E-5FREQ = 910.000000 MHzCHAN = 10TEMP = 70CNote: The indicated receive signal strength (RSSI) is equal to -147 dBm if there is no signal received fromtransmitter.
Appendix A27www.javad.com TECHNICAL SPECIFICATIONSFH915 DSP based integrated Spread Spectrum 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 Spread Spectrum module provides half-duplex communication with transmitter output power of 1 W(+30 dBm) in the frequency band 902-928 MHz z. In 868-870 MHz band module provides half-duplexcommunication with transmitter output power up to 1W (+30 dBm) with channel spacing 25.0/ 20.0/12,5/6.25 kHz. It supports the following modulation methods: GMSK, 4FSK.A.1. Technical SpecificationsA.1.1. Radio TransceiverTable A-1. Radio Transceiver SpecificationsA.1.2. Radio TransmitterTable A-2. Radio Transmitter SpecificationsComponent DetailsFrequency Range 902-928 MHz (USA)915-928 MHz (Australia)868-870 MHz (EU) with 25/20/12.5 kHz CSLink Rate, symbols/second 9600, 19200, 38400, 64000 (USA/Australia)4800, 9600 (EU)Carrier Frequency Stability ±1 ppmModulation GMSK/4FSKCommunication Mode Half duplex, simplex, repeaterComponent DetailsTransmitter Output Power +10... +30 dBm in 1 dB step / 50 (USA/Australia)+10...+27 dBm in 1dB step/50 (EU)
Technical SpecificationsTechnical SpecificationsRadio Receiver28 www.javad.comA.1.3. Radio ReceiverFigure A-1. Radio Receiver SpecificationsA.1.4. ModemFigure A-2. Modem Specifications Component DetailsReceiver Sensitivity for GMSK(BER 1x 10-4)-110 dBm for 25 kHz CS-110 dBm for 20 kHz CS-112 dBm for 12.5 kHz CSReceiver Dynamic Range -119 to -10 dBmComponent DetailsInterface DSP UART (serial port)Interface Connector 16-lead ConnectorData Speed of Serial Interface 9600 - 115200 bpsData Rate of Radio Interface(USA/Australia) 64000 bps - GMSK32000 bps - GMSK19200 bps - GMSK16000 bps - GMSK128000 bps - 4FSK64000 bps - 4FSK32000 bps - 4FSK19200 bps - 4FSK16000 bps - 4FSKData Rate Radio Interface(25 kHz CS) 9600 bps – GMSK19200 bps – 4FSKData Rate Radio Interface(20 kHz Channel Spacing) 7500 bps – GMSK15000 bps – 4FSKData Rate Radio Interface(12.5 kHz Channel Spacing) 4800 bps – GMSK9600 bps – 4FSKForward Error Correction (FEC) Convolutional codeData scrambling Yes
Technical SpecificationsTechnical SpecificationsCompliance29www.javad.com A.1.5. ComplianceA.1.6. GeneralFeatures• DSP-Modem• Multi-Modulation Technologies• Zero-IF Technologies• 902-928 MHz (USA), 915-928 MHz (Australia), 868-870 MHz (EU) Frequency Ranges• Up to 115200 bps Serial Interface Data Rate• Embedded Firmware Compensation for Operation at Extremely Low and High Temperatures• Compact DesignA.1.7. Mechanical Properties For End-productDimensions for PCB Mounted Enclosure: 80 mm x W: 46.5 mm x H: 7.6/9.5 mm (3.15" x 1.83" x 0.3")Component DetailsFCC FCC Part 15.247ETSI EN 300 220-1, EN 301 489-1Component DetailsInput Voltage 4.0 V ± 5%Power Consumption (average) 3 W – transmit with 50% duty cycle (1 W TPO)1 W – receive modeOperation Temperature -40oC - +60oCStorage Temperature -40oC - +80oCDimensions L: 80 mm x W: 46.5 mm x H: 7.6 / 9.5 mmWeight 43 g
Technical SpecificationsExternal ConnectorsAntenna Connector30 www.javad.comA.2. External ConnectorsA.2.1. Antenna ConnectorJ2 is Antenna Input / Output Connector: MMCX RIGHT ANGLE PCB JACK, AMPHENOL P/N 908-24100A.2.2. Main ConnectorThe user ports connector is used to provide connection with an external DTE or with the PC runningAWLaunch management software applications.Note: The RS232-to-TTL adapter must be used to provide physical level compatibility between COM port ofPC running AWLaunch and FH915 user interface port.9.50 mm.37 in7.6 mm.3 inConnector, 16-lead,Thru-hole 2x8, Header,".050"75.00 mm2.95 in46.50 mm1.83 in80.00 mm3.15 inBOTTOMSIDE9.50 mm.37 in7.6 mm.3 inConnector, 16-lead,Thru-hole 2x8, Header,75.00 mm2.95 in46.50 mm1.83 in80.00 mm3.15 inBOTTOMSIDE
Technical SpecificationsExternal ConnectorsMain Connector31www.javad.com 16-Lead Header Connector, ECS Corp. P/N 9616-D1-01-03.PIN#Signal Designator Signal name Description I/O Comments1 GND GND Ground - Signal and Chassis Ground2 DSP UART 1 TXD Transmit Data TTL Input Serial Data Input3 DSP UART 2 RXD Receive Data TTL Output Output for received serial data4 DPORT-5 DTR or DP/MP Data Terminal Ready TTL Input Control line can be used as a backup method for entering Command mode: (0V) – Maintenance Mode; (3.3V) – Data ModeAn internal 100K pull-up enables Data Mode if this signal is left unconnected. Maintenance Mode isalso accessible by transmitting an escape sequence.5 DPORT1 CTS Clear to Send TTL Output Used to control transmit flow from the user to the radio: (0V) – Transmit buffer not full, continue transmitting (3.3V) – Transmit buffer full, stop transmitting6 TTLI1 SLEEP Sleeps/wakes radioReceive onlyTTL Input In sleep mode, all radio functions are disabled consuming less than 50µA. An internal 10K pull-down wakes up the radio if this signal is left unconnected. At wake up, any user programmed configuration settings are refreshed from flash memory, clearing any temporary settings that may have been set:(3.3V) – Sleep Radio; (0V) – Wake RadioAs an option could be used as TTL Input Line 1.7 DPORT3 MDM_GRN Data Carrier Detect TTL Output Used by remotes to indicate that the remote has successfully acquired the signal from base station:(0V) 1 – Carrier detected (synchronized)(3.3V) 0 – No carrier detected (not synchronized)
Technical SpecificationsExternal ConnectorsMain Connector32 www.javad.com8 DPORT4 RTS Request to Send TTL Input Gates the flow of receive data from the radio to the user on or off. An internal 10K pull-down enables data receive if this signal is left unconnected. In normal operation, this signal should be asserted:(0V) – Receive data (RxD) enabled(3.3V) – Receive data (RxD) disabled9 DPORT2 DSR Data Set Ready TTL Output Used to control transmit flow from the user to the radio:(0V) 1 – Receive buffer has data to transfer; (3.3V) 0 – Receive buffer is empty10 RES CONT RESCONT Reset Control TTL Input Reset the radio by shortening this pin to the ground.11 TTLO1 TTLOUT1 TTL Output Line 1TTL Output Reserve line12 TTLO2 TTLOUT2 TTL Output Line 2TTL Output Reserve line13 GND GND Ground - Signal and Chassis Ground14 TTLI2 TTLIN TTL Input line TTL Input An internal 100K pull-up resistor is applied.15 VCC36 PWR Power Supply External Regulated positive 4.0V DC from ext. Power Supply.16 VCC36 PWR Power Supply External Regulated positive 4.0V DC from ext. Power Supply.PIN#Signal Designator Signal name Description I/O Comments
Appendix B33www.javad.com SPREAD SPECTRUM RADIO USAGEMany countries require a license for radio users. Be sure you comply with all local laws while operating aSpread Spectrum radio.The quality and strength of the Spread Spectrum signals translates into range for Spread Spectrumcommunications.The system’s range will greatly depend on the local conditions. Topography, local communications andeven meteorological conditions play a major role in the possible range of communications.
Spread Spectrum Radio Usage34 www.javad.com
Appendix C35www.javad.com SAFETY WARNINGSRead these instructions.• Keep these instructions.• Heed all warnings.• Follow all instructions.• Clean only with a damp cloth.• Do not block any of the ventilation openings. Install in accordance with the manufacturer'sinstructions.• Do not install near any heat sources such as radiators, heat registers, stoves, or other apparatus(including amplifiers) that produce heat.• Protect the power cord from being walked on or pinched particularly at plugs, conveniencereceptacles, and the point where they exit from the apparatus.• Only use attachments/accessories specified by the manufacturer.• Refer all servicing to qualified service personnel. Servicing is required when the apparatus hasbeen damaged in any way, such as power-supply cord or plug is damaged, liquid has been spilledor objects have fallen into the apparatus, or has been dropped.• Apparatus shall not be exposed to dripping or splashing and no objects filled with liquids, shall beplaced on the apparatus.C.1. General WarningsThis product should never be used:• Without the user thoroughly understanding operator’s manual.• After disabling safety systems or altering the product.• With unauthorized accessories.• Contrary to applicable laws, rules, and regulations.DANGER:THE FH915 SHOULD NEVER BE USED IN DANGEROUS ENVIRONMENTS.
Safety WarningsGeneral Warnings36 www.javad.com
Appendix D37www.javad.com WARRANTY TERMSJAVAD GNSS electronic equipment are guaranteed against defective material and workmanship undernormal use and application consistent with this Manual. The equipment is guaranteed for the periodindicated, on the warranty card accompanying the product, starting from the date that the product is soldto 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 basis and willbe either reconditioned or new. This limited warranty does not include service to repair damage to theproduct resulting from an accident, disaster, misuses, abuse or modification of the product.Warranty service may be obtained from an authorized JAVAD GNSS warranty service dealer. If thisproduct is delivered by mail, purchaser agrees to insure the product or assume the risk of loss or damagein transit, to prepay shipping charges to the warranty service location and to use the original shippingcontainer or equivalent. A letter should accompany the package furnishing a description of the problemand/or defect.The purchaser's sole remedy shall be replacement as provided above. In no event shall JAVAD GNSS beliable for any damages or other claim including any claim for lost profits, lost savings or other incidentalor 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.
900 Rock Avenue, San Jose, CA 95131 USAPhone: +1(408)770-1770Fax: +1(408)770-1799www.javad.comCopyright © JAVAD GNSS, Inc., 2011All rights reserved. No unauthorized duplication.

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