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General Description

Physical Interfaces

Antennas

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1.1.4. Antennas

Antenna type depends on the site requirements, and may be directional or omni-directional. Note that to
support 8 miles distance range between Base station and FH915 unit, an antenna mast should elevate the
base antenna a minimum of 20 feet above the average level of the terrain.

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Содержание FH915

Страница 1: ...s 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 FH915 Operator s Manual Version 2 1 Last Revised January 19 2011 ...

Страница 2: ...www javad com ...

Страница 3: ... 1 4 Antennas 10 Chapter 2 Product Features 11 2 1 Introduction 11 2 2 Operating at Spread Spectrum Band 12 2 3 Modulation Technique 12 2 3 1 Media Access Control MAC 13 2 3 2 Operating Modes 13 2 3 3 Management Tools 14 2 3 4 Security 14 Chapter 3 Connection 15 3 1 FH915 connection 15 3 2 Antenna connection 15 3 3 Power connection 15 3 4 Serial RS 232 connection 16 Chapter 4 Command Line Interfac...

Страница 4: ...ation Commands 25 4 5 1 INFO 25 4 5 2 STATE 25 Appendix A Technical Specifications 27 A 1 Technical Specifications 27 A 1 1 Radio Transceiver 27 A 1 2 Radio Transmitter 27 A 1 3 Radio Receiver 28 A 1 4 Modem 28 A 1 5 Compliance 29 A 1 6 General 29 A 1 7 Mechanical Properties For End product 29 A 2 External Connectors 30 A 2 1 Antenna Connector 30 A 2 2 Main Connector 30 Appendix B Spread Spectrum ...

Страница 5: ...rporation Product and company names mentioned herein may be trademarks of their respective owners DISCLAIMER OF WARRANTY EXCEPT FOR ANY WARRANTIES IN THIS MANUAL OR A WARRANTY CARD ACCOMPANYING THE PRODUCT THIS MANUAL AND THE FH915 ARE PROVIDED AS IS THERE ARE NO OTHER WARRANTIES JAVAD GNSS DISCLAIMS ANY IMPLIED WARRANTY OF MERCHANTABILITY OR FITNESS FOR ANY PARTICULAR USE OR PURPOSE JAVAD GNSS AN...

Страница 6: ...close any of the Confidential Information you shall give JAVAD GNSS immediate notice so that it may seek a protective order or other appropriate remedy WEBSITE OTHER STATEMENTS No statement contained at the JAVAD GNSS website or any other website or in any other advertisements or JAVAD GNSS literature or made by an employee or independent contractor of JAVAD GNSS modifies these Terms and Condition...

Страница 7: ...ician for additional suggestions CAUTION Any changes or modifications to the equipment not expressly approved by the party responsible for compliance could void your authority to operate such equipment Canadian Emissions Labeling Requirements This Class B digital apparatus meets all requirements of the Canadian Interference Causing Equipment Regulations Cet appareil numérique de la classe B respec...

Страница 8: ...uirements 8 www javad com Technical Assistance If 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 World Wide Web site at www javad com ...

Страница 9: ...ance matched standard MMCX connector as required by regulation 1 1 3 Power Consumption Power consumption of the Spread Spectrum radio modem at continuous transmission mode with 1W output power level is less than 4500mW refer to Table 1 1 for details Table 1 1 Power Consumption Operating Mode Description Consumption Maximum for continuous transmission with 1W output power level1 1 The supply voltag...

Страница 10: ...as Antenna type depends on the site requirements and may be directional or omni directional Note that to support 8 miles distance range between Base station and FH915 unit an antenna mast should elevate the base antenna a minimum of 20 feet above the average level of the terrain ...

Страница 11: ...lation for remote terminals Figure 2 1 FH915 FH915 supports two separate Application Data and Maintenance modes of single UART serial port The built in software tools provide the wireless link testing unit s status and error statistics monitoring as well as unit s settings change over the air The firmware of the FH915 radio transceiver resides in a flash memory The updating of the radio transceive...

Страница 12: ...ultiple access and or multiple functions This technique decreases the potential interference to other receivers while achieving privacy Spread spectrum generally makes use of a sequential noise like signal structure to spread the normally narrowband information signal over a relatively wideband radio band of frequencies The receiver correlates the received signals to retrieve the original informat...

Страница 13: ... is a link throughput determined by the modulation technique and n is a number of repeaters in the chain Half duplex Base Half duplex Remote and repeater are not supported in current release 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 an external controller th...

Страница 14: ...GUI 3 Software upgrades and improvements can be downloaded from AWLaunch to the units connected with PC PDA 2 3 4 Security The system provides wireless media access protection as well as data scrambling The following are its key 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 ac...

Страница 15: ... the Kit 3 3 Power connection The FH915 powered through Evaluation Kit and Power Cable included in Kit The Banana plugs of power cable may be connected to any available laboratory power supply battery or other power source with power parameters suitable for particular FH915 power specifications CAUTION Evaluation Kit does not provide any over voltage protection Connecting Evaluation Kit to voltage...

Страница 16: ...h 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 connector Table 3 1 DB 9 Male Connector Specification Please refer to particular external device Serial port specification to select and use right Serial cable for proper connection Pin Signal Name Dir Description 1 Not used 2 RXD I Receive Data 3 TXD O Transmit Data 4 DT...

Страница 17: ...e 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 before Note 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 th...

Страница 18: ...Commands are not key sensitive small none capital characters can be used to enter CLI commands Table 4 1 Command Line Interface Error Codes 4 1 1 Software Switching to Maintenance Mode Software 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 us...

Страница 19: ...nce 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 data and forwards data received over the air to DTE 4 1 2 Hardware Switching to Maintenance Mode As alternative to Software Switching the switching through the MP DP control line can be use...

Страница 20: ...mal number for the unit to be connected To get the complete unit list the CONNECT command must be used with no parameter The list of units in the Point to Point link with the connection established with remote unit is shown in Figure 4 1 Figure 4 1 Connection List To disconnect from the remote unit and connect to the local unit the parameter Unit_Numb must be equal to 0x00 4 2 2 LINK The LINK comm...

Страница 21: ...t Parameter Name Parameter List PWRB PWRW 0 Automatic Transmit Power control a default setting for Remote units 15 30 30 1000 RF output Power in dBm mW PTRN 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 List CHAN Selects the Channel Number CN 1 to 32 Each Channel is define...

Страница 22: ...sible for maintenance serial port interface configurations such as data rate and number of bits in a byte MPORT Parameter Name Parameters List Parameter Name Parameter List RATE 0 Maintenance Port baud rate a default setting 1 1200 baud 2 2400 baud 3 4800 baud 4 9600 baud 5 14400 baud 6 19200 baud 7 38400 baud 8 57600 baud 9 115200 baud a default setting BITS Set number of bits in one byte 8 or 7 ...

Страница 23: ...2 BOOT The BOOT command is intended to reboot the unit using selected user settings Two options are available 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 HELP The HELP command types the list of all...

Страница 24: ...he User Configuration file The configuration stored in the User Configuration file is activated by automatically after unit s reboot 4 4 5 SLEEP The SLEEP command determines the sleep mode parameters The sleeping FH915 can be activated by real 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 Para...

Страница 25: ...e used in prior of STATE command using STATE Parameter Name Parameters List The STATE command without Parameter Name indicates all values Parameter Name Parameter List ID Product ID SN Six bytes Serial Number SN HW 1 0 hardware revision FW 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 alphabet...

Страница 26: ...dentification Commands STATE 26 www javad com TTL_IN1 0 TTL_IN2 1 RSSI 110 dBm BER 2 3E 5 FREQ 910 000000 MHz CHAN 10 TEMP 70C Note The indicated receive signal strength RSSI is equal to 147 dBm if there is no signal received from transmitter ...

Страница 27: ...ex communication 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 Specifications A 1 1 Radio Transceiver Table A 1 Radio Transceiver Specifications A 1 2 Radio Transmitter Table A 2 Radio Transmitter Specifications Component Details Frequency Range 902 928 MHz USA 915 928 MHz Australia 86...

Страница 28: ...ace DSP UART serial port Interface Connector 16 lead Connector Data Speed of Serial Interface 9600 115200 bps Data Rate of Radio Interface USA Australia 64000 bps GMSK 32000 bps GMSK 19200 bps GMSK 16000 bps GMSK 128000 bps 4FSK 64000 bps 4FSK 32000 bps 4FSK 19200 bps 4FSK 16000 bps 4FSK Data Rate Radio Interface 25 kHz CS 9600 bps GMSK 19200 bps 4FSK Data Rate Radio Interface 20 kHz Channel Spaci...

Страница 29: ...ation for Operation at Extremely Low and High Temperatures Compact Design A 1 7 Mechanical Properties For End product Dimensions 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 Details FCC FCC Part 15 247 ETSI EN 300 220 1 EN 301 489 1 Component Details Input Voltage 4 0 V 5 Power Consumption average 3 W transmit with 50 duty cycle 1 W TPO 1 W receive mode Op...

Страница 30: ...h an external DTE or with the PC running AWLaunch management software applications Note The RS232 to TTL adapter must be used to provide physical level compatibility between COM port of PC running AWLaunch and FH915 user interface port 9 50 mm 37 in 7 6 mm 3 in Connector 16 lead Thru hole 2x8 Header 050 75 00 mm 2 95 in 46 50 mm 1 83 in 80 00 mm 3 15 in BOTTOM SIDE 9 50 mm 37 in 7 6 mm 3 in Connec...

Страница 31: ...scape 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 transmitting 6 TTLI1 SLEEP Sleeps wakes radio Receive only TTL 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 ...

Страница 32: ...er to the radio 0V 1 Receive buffer has data to transfer 3 3V 0 Receive buffer is empty 10 RES CONT RESCONT Reset Control TTL Input Reset the radio by shortening this pin to the ground 11 TTLO1 TTLOUT1 TTL Output Line 1 TTL Output Reserve line 12 TTLO2 TTLOUT2 TTL Output Line 2 TTL Output Reserve line 13 GND GND Ground Signal and Chassis Ground 14 TTLI2 TTLIN TTL Input line TTL Input An internal 1...

Страница 33: ...ws while operating a Spread Spectrum radio The quality and strength of the Spread Spectrum signals translates into range for Spread Spectrum communications The system s range will greatly depend on the local conditions Topography local communications and even meteorological conditions play a major role in the possible range of communications ...

Страница 34: ...Spread Spectrum Radio Usage 34 www javad com ...

Страница 35: ... Only use attachments accessories specified by the manufacturer Refer all servicing to qualified service personnel Servicing is required when the apparatus has been damaged in any way such as power supply cord or plug is damaged liquid has been spilled or objects have fallen into the apparatus or has been dropped Apparatus shall not be exposed to dripping or splashing and no objects filled with li...

Страница 36: ...Safety Warnings General Warnings 36 www javad com ...

Страница 37: ...mage to the product 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 this product is delivered by mail purchaser agrees to insure the product or assume the risk of loss or damage in transit to prepay shipping charges to the warranty service location and to use the original ship...

Страница 38: ...900 Rock Avenue San Jose CA 95131 USA Phone 1 408 770 1770 Fax 1 408 770 1799 www javad com Copyright JAVAD GNSS Inc 2011 All rights reserved No unauthorized duplication ...

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