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Related Manuals for Telit Wireless Solutions SE868-V3
Summary of Contents for Telit Wireless Solutions SE868-V3
- Page 1 We have 45,000 LP502030-PCM-NTC-LD-A02554 - EEMB - Lithium Battery Rectangular 3.7V 250mAh Rechargeable in stock now. Starting at $0.034. This EEMB part is fully warrantied and traceable. 00000005981LF-000 SE868V3B577T002 EOS Power Telit Buy Now Buy Now Looking for a discount? Check out our current promotions! Give us a call 1-855-837-4225...
- Page 2 SE868-V3 Product User Guide 1VV0301205 r4 – 2016-01-20...
- Page 3 SE868-V3 Product User Guide 1VV0301205 r4 – 2016-01-20 APPLICABILITY TABLE PRODUCT SE868-V3 Reproduction forbidden without written authorization from Telit Communications S.p.A. - All Rights Reserved. Page 2 of 76 Mod. 0805 2015-02 Rev.4...
- Page 4 SE868-V3 Product User Guide 1VV0301205 r4 – 2016-01-20 SPECIFICATIONS SUBJECT TO CHANGE WITHOUT NOTICE Notice While reasonable efforts have been made to assure the accuracy of this document, Telit assumes no liability resulting from any inaccuracies or omissions in this document, or from use of the information obtained herein.
- Page 5 SE868-V3 Product User Guide 1VV0301205 r4 – 2016-01-20 Usage and Disclosure Restrictions License Agreements The software described in this document is the property of Telit and its licensors. It is furnished by express license agreement only and may be used only in accordance with the terms of such an agreement.
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Page 6: Table Of Contents
Hardware ........................13 2.2.2. Firmware ........................13 2.3. Block Diagram ......................14 2.4. SE868-V3 Module Photo ..................15 3. Evaluation Kit (EVK) ....................16 3.1. SE868-V3 Evaluation Kit ..................16 4. Product Features ......................18 4.1. Multi-Constellation Navigation ................18 4.2. - Page 7 SiRFaware ......................24 4.17.6. Hibernate ....................... 24 5. Product Compatibility ....................25 5.1. Upgrading JF2 designs to the SE868-V3 ............... 25 5.2. Upgrading SE868-V2 designs to the SE868-V3 ............. 26 6. Product Performance ....................27 6.1. Horizontal Position Accuracy .................. 27 6.2.
- Page 8 SE868-V3 Product User Guide 1VV0301205 r4 – 2016-01-20 8. Flash Upgradability ....................33 9. Electrical Interface ...................... 34 9.1. Module Pin-out ....................... 34 9.2. DC Characteristics ....................36 9.3. Absolute Maximum Ratings ..................36 9.4. Power Supply ......................37 9.4.1.
- Page 9 SE868-V3 Product User Guide 1VV0301205 r4 – 2016-01-20 11.6. System Noise Floor ..................... 54 11.7. RF Trace Losses ....................55 11.8. PCB stack and Trace Impedance ............... 55 11.9. Implications of the Pre-Select SAW Filter ............56 11.10. Powering an External LNA (active antenna) ............ 56 11.11.
- Page 10 Figure 3-2 SE868-V3 Evaluation Kit ....................17 Figure 9-1 SE868-V3 Pin-out Diagram .................... 34 Figure 10-1 SE868-V3 Reference Design – Passive Antenna ............48 Figure 10-2 SE868-V3 Reference Design – Active Antenna............49 Figure 11-1 Cascade Noise Figure – example calculations with external LNA ........ 54 Figure 11-2 RF Trace Examples .....................
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Page 11: Introduction
SE868-V3 Product User Guide 1VV0301205 r4 – 2016-01-20 Introduction 1.1. Purpose The purpose of this document is to provide product information for the SE868-V3 GNSS module. 1.2. Contact Information, Support For general contact, technical support, reporting documentation errors and to order manuals, contact Telit Technical Support Center (TTSC) at: TS-AMERICAS@telit.com... -
Page 12: Related Documents
1VV0301205 r4 – 2016-01-20 1.4. Related Documents • SE868-V3 Data Sheet • SE868-V3 Evaluation Kit User Guide (1VV0301206) The following documents require a Non-disclosure agreement: • NMEA Reference Guide (CS-129435-MA8) • SiRFstar One Socket Protocol Interface Control Document (CS-129291-DCP15) •... -
Page 13: Product Description
GLONASS and BeiDou constellations yields better coverage, greater accuracy, and improved availability. The SE868-V3 module is based on the SiRFstar 5e (B02) flash GNSS chip. The SE868-V3 is pin-compatible with the SE868-V2 and JF2 modules with some differences for drop-in replacement. See Section 5 Product Compatibility for details. -
Page 14: Product Variants
Product Variants 2.2.1. Hardware The first generation of SE868-V3 (Gen 1) was replaced by the second generation (Gen 2) variant in January 2016. SE868-V3 (Gen 2) is fully backward compatible and has a reduced power consumption of approximately ~35%. SE868-V3... -
Page 15: Block Diagram
SE868-V3 Product User Guide 1VV0301205 r4 – 2016-01-20 2.3. Block Diagram Figure 2-1 SE868-V3 Block Diagram Reproduction forbidden without written authorization from Telit Communications S.p.A. - All Rights Reserved. Page 14 of 76 Mod. 0805 2015-02 Rev.4... -
Page 16: Se868-V3 Module Photo
SE868-V3 Product User Guide 1VV0301205 r4 – 2016-01-20 2.4. SE868-V3 Module Photo Figure 2-2 SE868-V3 Module Photo Reproduction forbidden without written authorization from Telit Communications S.p.A. - All Rights Reserved. Page 15 of 76 Mod. 0805 2015-02 Rev.4... -
Page 17: Evaluation Kit (Evk)
Note: The antenna is included but not visible under the ground plane. Figure 3-1 SE868-V3 Evaluation Kit Contents Reproduction forbidden without written authorization from Telit Communications S.p.A. - All Rights Reserved. -
Page 18: Figure 3-2 Se868-V3 Evaluation Kit
SE868-V3 Product User Guide 1VV0301205 r4 – 2016-01-20 Figure 3-2 SE868-V3 Evaluation Kit Reproduction forbidden without written authorization from Telit Communications S.p.A. - All Rights Reserved. Page 17 of 76 Mod. 0805 2015-02 Rev.4... -
Page 19: Product Features
SE868-V3 Product User Guide 1VV0301205 r4 – 2016-01-20 Product Features 4.1. Multi-Constellation Navigation GPS and GLONASS constellations are enabled by default. The user may enable or disable GPS, GLONASS, and/or BDS constellations via OSP command MID 222,16. Use of GLONASS or BDS alone may not give optimum positioning results depending on the region that the receiver is located in. -
Page 20: Assisted Gps (Agps) - Sirfinstantfix
SE868-V3 Product User Guide 1VV0301205 r4 – 2016-01-20 4.5. Assisted GPS (AGPS) - SiRFInstantFix™ Assisted GPS (or Aided GPS) is a method by which TTFF is improved (reduced) using information from a source other than current broadcast GPS signals. There are two sources of predicted (extended) ephemeris: •... -
Page 21: Velocity Dead-Reckoning
SE868-V3 Product User Guide 1VV0301205 r4 – 2016-01-20 This feature is useful for applications in which very low dynamics are not expected, the classic example being an automotive application. Static Navigation is disabled by default, but can be enabled by OSP command MID 143. -
Page 22: Internal Lna
SE868-V3 Product User Guide 1VV0301205 r4 – 2016-01-20 4.10. Internal LNA The module has an adjustable gain internal LNA which allows the receiver to compensate for the use of various external antennas. The default gain (low or high) is determined by the version of firmware installed in the module. -
Page 23: 1Pps
SE868-V3 Product User Guide 1VV0301205 r4 – 2016-01-20 4.12. 1PPS 1PPS is a one pulse per second signal which is enabled after the receiver has achieved a 5- satellite Kalman filter position fix. It is disabled when the fix goes invalid. However, if Velocity DR (see Section 4.8 Velocity Dead-Reckoning) is enabled, the 1PPS pulse is disabled after the position fix becomes invalid and the Velocity DR timeout has expired. -
Page 24: Power Management Modes
SE868-V3 Product User Guide 1VV0301205 r4 – 2016-01-20 4.17. Power Management Modes The receiver features several operating modes that provide reduced power consumption. Availability of GNSS signals in the operational environment will be a factor in choosing power management modes. The designer can choose a mode that provides the best trade-off of navigation performance versus power consumption. -
Page 25: Trickle Power
SE868-V3 Product User Guide 1VV0301205 r4 – 2016-01-20 4.17.2.2. SmartGNSS II SmartGNSS II includes the benefits of SmartGNSS I and achieves further power reduction by minimizing the usage of the secondary GNSS constellation. The adaptive mechanism adjusts constellation usage based on signal conditions to maintain performance while minimizing power consumption. -
Page 26: Product Compatibility
SiRFstarIV and V-based designs. The SE868-V3 offers an upgrade path from existing Telit and competitive designs. The SE868-V3 is footprint-compatible with the SE868-V2 & JF2 family but it is not a drop-in replacement. Some of the pins have a slightly different function. The designer will have to modify the antenna and possibly other components in the RF path to accommodate the GLONASS, BeiDou, and Galileo as well as the GPS signals. -
Page 27: Upgrading Se868-V2 Designs To The Se868-V3
SPI flash. • For the SE868-V3, GPIO8 is an output signal that can be used to enable or disable an external LNA. The LNA should be enabled when GPIO8 is high and disabled when low. For passive antennas, GPIO8 can normally be left unconnected or connected to monitor the status of the receiver. -
Page 28: Product Performance
GPS + BeiDou Test Conditions: 24-hr Static scenario, -130 dBm, Full Power mode Table 6-1 SE868-V3 Horizontal Position Accuracy Reproduction forbidden without written authorization from Telit Communications S.p.A. - All Rights Reserved. Page 27 of 76 Mod. 0805 2015-02 Rev.4... -
Page 29: Time To First Fix
29.7 Cold 32.2 Test Conditions: Static scenario, -130 dBm, Full Power mode Table 6-2 SE868-V3 Time To First Fix Reproduction forbidden without written authorization from Telit Communications S.p.A. - All Rights Reserved. Page 28 of 76 Mod. 0805 2015-02 Rev.4... -
Page 30: Sensitivity
SE868-V3 Product User Guide 1VV0301205 r4 – 2016-01-20 6.3. Sensitivity Constellation(s) State Minimum Signal Level (dBm) Acquisition -146 Navigation -161 Tracking -165 Acquisition -145 Navigation -158 GLONASS Tracking -162 Acquisition -142 BeiDou Navigation -150 Tracking -156 Acquisition -146 GPS + GLO... -
Page 31: Software Interface
SE868-V3 Product User Guide 1VV0301205 r4 – 2016-01-20 Software Interface The host serial I/O port (UART, I2C, or SPI) supports full duplex communication between the receiver and the user. The default UART configuration is: NMEA, 9600 bps, 8 data bits, no parity, 1 stop bit. -
Page 32: Proprietary Output Messages
SE868-V3 Product User Guide 1VV0301205 r4 – 2016-01-20 The following messages can be enabled by command: Message ID Description Geographic Position – Latitude & Longitude Course Over Ground & Ground Speed Time and Date GNSS Fix Data Table 7-2 Available NMEA Output Messages... -
Page 33: Nmea Input Commands
SE868-V3 Product User Guide 1VV0301205 r4 – 2016-01-20 7.2. NMEA Input Commands The receiver uses NMEA proprietary messages for commands and command responses. This interface provides configuration and control over selected firmware features and operational properties of the module. The format of a command is: $<command-ID>[,<parameters>]*<cr><lf>... -
Page 34: Flash Upgradability
SE868-V3 Product User Guide 1VV0301205 r4 – 2016-01-20 Flash Upgradability The firmware stored in the internal Flash memory of the SE868-V3 may be upgraded via the serial port TX/RX pads. Please refer to the SE868-V3 Evaluation Kit User Guide to update the firmware. -
Page 35: Electrical Interface
SE868-V3 Product User Guide 1VV0301205 r4 – 2016-01-20 Electrical Interface 9.1. Module Pin-out Figure 9-1 SE868-V3 Pin-out Diagram Reproduction forbidden without written authorization from Telit Communications S.p.A. - All Rights Reserved. Page 34 of 76 Mod. 0805 2015-02 Rev.4... -
Page 36: Table 9-1 Se868-V3 Pin-Out Function Table
No Connection 2, 3, 14, 16, 20, 22 NC No Connection. No Connection in SE868-V3. (Was GPIO3 in SE868-V2). Reserved Reserved Reserved - Do not connect to any external circuit. (Was GND in SE868-V2). Table 9-1 SE868-V3 Pin-out Function Table Reproduction forbidden without written authorization from Telit Communications S.p.A. -
Page 37: Dc Characteristics
SE868-V3 Product User Guide 1VV0301205 r4 – 2016-01-20 9.2. DC Characteristics Signal Description Units Low level output voltage, I High level output voltage, I 0.75*V Low level input voltage -0.3 0.45 High level input voltage, I 0.7*V kΩ Internal pull-up resistor equivalent kΩ... -
Page 38: Power Supply
The module will power up into the state determined by the ON-OFF pin (High: RUN; Low: HIBERNATE). The current state of the SE868-V3 can be determined by monitoring the “SYSTEM-ON” signal. See section 9.4.4 ON-OFF (input) and SYSTEM-ON (output). -
Page 39: On-Off (Input) And System-On (Output)
1VV0301205 r4 – 2016-01-20 9.4.4. ON-OFF (input) and SYSTEM-ON (output) The SE868-V3 module has three power states: OFF, RESET, and ON. The ON state has three substates: HIBERNATE, STANDBY, and RUN. The OFF state exists when power is removed from the module. -
Page 40: Dc Power Consumption
1VV0301205 r4 – 2016-01-20 9.4.5. DC Power Consumption 9.4.5.1. SE-868-V3 Gen 1 (Linear Mode Power Supply) The SE868-V3 Gen 1 has been replaced by SE868-V3 Gen 2. See § 9.4.5.2. Power SE868-V3 Gen 1 (Linear) Smart 2 Smart 1 Full Power Mode State &... -
Page 41: Table 9-6 Power Consumption - Se868-V3 Gen 2
Low Power mode: 500 ms duty cycle. Periodic Mode: Default settings - asleep for 12 s, then awake for 3 s. Table 9-6 Power Consumption – SE868-V3 Gen 2 Reproduction forbidden without written authorization from Telit Communications S.p.A. - All Rights Reserved. -
Page 42: Reset
SE868-V3 Product User Guide 1VV0301205 r4 – 2016-01-20 9.5. Reset The module will generate an internal reset as appropriate. Therefore, no external signal is required for the module to operate properly and this pin may be left unconnected. If an external reset is desired, the signal must be either open collector or open drain without any form of pull up. -
Page 43: Host I/O Port Configuration And Operation
SE868-V3 Product User Guide 1VV0301205 r4 – 2016-01-20 9.7. Host I/O Port Configuration and Operation The receiver module includes two serial ports which are configured for the desired interface. The first host port can be configured to communicate using a UART, I2C, or SPI interface. -
Page 44: Host Port Configuration For 2Nd Port (Port 1)
SE868-V3 Product User Guide 1VV0301205 r4 – 2016-01-20 9.7.2. Host Port Configuration for 2nd Port (port 1) The second host port default configuration in determined in the firmware build. 9.7.3. UART Operation Upon power up, the module will communicate using a standard asynchronous 8 bit protocol with output messages appearing on the TX line and input commands and data being received on the RX line. -
Page 45: I 2 C Operation
SE868-V3 Product User Guide 1VV0301205 r4 – 2016-01-20 9.7.4. C Operation Upon power up, the module acts as a master transmitter and a slave receiver (multi-master mode) on the second port. When used in I C mode, external pull-ups in the range of 1K to 2.2K to a 1.8V to 3.6V power supply are required on the RX and TX lines. -
Page 46: Spi Operation
SE868-V3 Product User Guide 1VV0301205 r4 – 2016-01-20 9.7.5. SPI Operation See Section 9.7.1 Host Port Configuration for 1st Port to specify SPI interface. The 2 port cannot be configured for SPI interface since there are only two pins available. -
Page 47: Rf Interface
No DC voltage can be applied to the RF input. The RF input pin is ESD sensitive. The SE868-V3 contains an integrated LNA and pre-select SAW filter. This allows the module to work well with a passive GNSS antenna. If the antenna cannot be located near the module, then an active antenna (that is, an antenna with a built in low noise amplifier) should be used. -
Page 48: Frequency Plan
SE868-V3 Product User Guide 1VV0301205 r4 – 2016-01-20 9.8.5. Frequency Plan Signal Frequency (MHz) TCXO Frequency 26.000 LO Frequency 1588.6 Table 9-11 Frequency Plan 9.9. Local Oscillator Leakage Signal Level LO Leakage -70 dBm (typical) Table 9-12 LO Leakage Reproduction forbidden without written authorization from Telit Communications S.p.A. - All Rights Reserved. -
Page 49: Reference Designs
1VV0301205 r4 – 2016-01-20 Reference Designs Note: XC6221 is the DC voltage supply regulator Figure 10-1 SE868-V3 Reference Design – Passive Antenna Reproduction forbidden without written authorization from Telit Communications S.p.A. - All Rights Reserved. Page 48 of 76 Mod. 0805 2015-02 Rev.4... -
Page 50: Figure 10-2 Se868-V3 Reference Design - Active Antenna
SE868-V3 Product User Guide 1VV0301205 r4 – 2016-01-20 Note: XC6221 is the DC voltage supply regulator Figure 10-2 SE868-V3 Reference Design – Active Antenna Reproduction forbidden without written authorization from Telit Communications S.p.A. - All Rights Reserved. Page 49 of 76... - Page 51 SE868-V3 Product User Guide 1VV0301205 r4 – 2016-01-20 Along with power and ground, the minimum signals required to operate the module properly are: one RF input and four digital lines. The RF input can be connected directly to a passive GNSS antenna.
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Page 52: Rf Front End Design
SE868-V3 Product User Guide 1VV0301205 r4 – 2016-01-20 RF Front End Design 11.1. RF Signal Requirements The receiver can achieve Cold Start acquisition with a signal level above the specified minimum at its input. This means that it can acquire and track visible satellites, download the necessary ephemeris data and compute the location within a 5 minute period. -
Page 53: Gnss Antenna Polarization
SE868-V3 Product User Guide 1VV0301205 r4 – 2016-01-20 The satellite transmit power is specified in each constellation’s reference documentation, readily available online. The GNSS signal is relatively immune to attenuation from rainfall. However, the GNSS signal is heavily influenced by attenuation due to foliage (such as tree canopies, etc.) as well as outright blockage caused by buildings, terrain or other items near the... -
Page 54: Active Versus Passive Antenna
SE868-V3 Product User Guide 1VV0301205 r4 – 2016-01-20 11.3. Active versus Passive Antenna If the GNSS antenna is placed near the receiver and the RF trace losses are not excessive (nominally 1 dB), then a passive antenna may be used. This would often be the lowest cost option and most of the time the simplest to use. -
Page 55: External Lna Gain And Noise Figure
SE868-V3 Product User Guide 1VV0301205 r4 – 2016-01-20 11.5. External LNA Gain and Noise Figure The modules can be used with an external LNA (usually built into an active antenna). Because of the internal LNA, the overall external gain (including signal losses past the external LNA) should conform to the specification in Table 4-1 Internal gain value and external gain range for best performance. -
Page 56: Rf Trace Losses
SE868-V3 Product User Guide 1VV0301205 r4 – 2016-01-20 The simplified formula is: C/No = GNSS Signal level – Thermal Noise – System NF Thermal noise is -174 dBm/Hz at 290K. Equation 11-2 Carrier to Noise Ratio We can estimate a system noise figure of 4 dB for the module, consisting of the pre-select SAW filter loss, the LNA noise figure, and implementation losses within the digital signal processing unit. -
Page 57: Implications Of The Pre-Select Saw Filter
11.9. Implications of the Pre-Select SAW Filter The SE868-V3 modules include a pre-select SAW filter in front of the internal LNA. Thus the RF input of the module is connected directly to the SAW filter. Any circuit connected to the RF input pin would see a complex impedance presented by the SAW filter (especially out of band), rather than the relatively broad and flat return loss presented by an LNA. -
Page 58: Rf Interference
SE868-V3 Product User Guide 1VV0301205 r4 – 2016-01-20 Simulations done by Telit show the following: Inductor Additional signal loss (dB) Murata LQG15HS27NJ02 0.65 Quarter wave stub on FR4 0.59 Coilcraft B09TJLC (used in ref. design) 0.37 Table 11-1 Inductor Loss Since this additional loss occurs after the LNA, it is generally not significant unless the circuit is being designed to work with both active and passive antennas. -
Page 59: Mechanical Drawing
SE868-V3 Product User Guide 1VV0301205 r4 – 2016-01-20 Mechanical Drawing Figure 12-1 SE868-V3 Mechanical Drawing Reproduction forbidden without written authorization from Telit Communications S.p.A. - All Rights Reserved. Page 58 of 76 Mod. 0805 2015-02 Rev.4... -
Page 60: Pcb Footprint
SE868-V3 Product User Guide 1VV0301205 r4 – 2016-01-20 PCB Footprint Figure 13-1 SE868-V3 PCB Footprint The module shall be mounted on a PCB which complies with V-0 flammability class. Reproduction forbidden without written authorization from Telit Communications S.p.A. - All Rights Reserved. -
Page 61: Product Packaging And Handling
1VV0301205 r4 – 2016-01-20 Product Packaging and Handling 14.1. Product Marking and Serialization The SE868-V3 module label has a 2D Barcode with the module serial number. Contact a Telit representative for information on specific module serial numbers. Key Description Pin 1 identification... -
Page 62: Product Packaging And Delivery
1VV0301205 r4 – 2016-01-20 14.2. Product Packaging and Delivery SE868-V3 modules are available in Trays or on Tape and Reel. All packaging is ESD protective lined. Modules shipped in tray form: Each tray is ‘dry’ packaged and vacuum sealed in a Moisture Barrier Bag (MBB) with two silica gel packs and then placed in a carton. -
Page 63: Figure 14-3 Product Packaging - Tape And Reel
SE868-V3 Product User Guide 1VV0301205 r4 – 2016-01-20 Modules shipped in Tape and Reel form: Each reel is ‘dry’ packaged and vacuum sealed in a Moisture Barrier Bag (MBB) with two silica gel packs and a humidity indicator card which is then placed in a carton. -
Page 64: Moisture Sensitivity
Please follow the MSD and ESD handling instructions on the labels of the MBB and exterior carton. The SE868-V3 is supplied in trays or tape and reel and is hermetically sealed with desiccant and humidity indicator card. The SE868-V3 parts must be placed and reflowed within 168 hours of first opening the hermetic seal provided the factory conditions are less than 30°C and less... -
Page 65: Esd Sensitivity
SE868-V3 Product User Guide 1VV0301205 r4 – 2016-01-20 Figure 14-4 Moisture Sensitive Device Label 14.4. ESD Sensitivity The module contains class 1 devices and is classified as Electro-Static Discharge Sensitive (ESDS). Telit recommends two basic principles of protecting ESD devices from damage: •... -
Page 66: Reflow
SE868-V3 Product User Guide 1VV0301205 r4 – 2016-01-20 Further information can be obtained from the JEDEC standard JESD625-A Requirements for Handling Electrostatic Discharge Sensitive (ESDS) Devices which can be downloaded free of charge from: www.jedec.org. 14.5. Reflow The modules are compatible with lead free soldering processes as defined in IPC/JEDEC J- STD-020. -
Page 67: Disposal
SE868-V3 Product User Guide 1VV0301205 r4 – 2016-01-20 14.9. Disposal Telit recommends that this product should not be treated as household waste. For more detailed information about recycling this product, please contact your local waste management authority or the reseller from whom you purchased the product. -
Page 68: Environmental Requirements
600 m/s (acquisition and navigation) Maximum Vehicle Dynamics 2 G acceleration ITAR Limits 515 m/s and altitude greater than 18,000 m Table 15-1 SE868-V3 Operating Environmental Limits 15.2. Storage Environmental Limits Temperature -40°C to +85°C Up to 95% non-condensing or Humidity wet bulb temperature of +35°C,... -
Page 69: Compliances
• Manufactured in an ISO 9000: 2000 accredited facility • Manufactured to TS 16949 requirement (upon request) The SE868-V3 module conforms to the following European Union Directives: • Low Voltage Directive 2006/95/EEC and product safety test • Directive EMC 2004/108/EC for conformity for EMC Reproduction forbidden without written authorization from Telit Communications S.p.A. -
Page 70: Ce Declaration Of Conformity
SE868-V3 Product User Guide 1VV0301205 r4 – 2016-01-20 16.1. CE Declaration of Conformity Reproduction forbidden without written authorization from Telit Communications S.p.A. - All Rights Reserved. Page 69 of 76 Mod. 0805 2015-02 Rev.4... -
Page 71: Rohs Compliance
16.2. RoHs Compliance • The Telit SE868-V3 modules are fully compliant with Directive 2002/95/EC on the restriction of the use of certain hazardous substances in electrical and electronic equipment (RoHS) Reproduction forbidden without written authorization from Telit Communications S.p.A. - All Rights Reserved. -
Page 72: Glossary And Acronyms
SE868-V3 Product User Guide 1VV0301205 r4 – 2016-01-20 Glossary and Acronyms AGPS: Assisted (or Aided) GPS AGPS provides ephemeris data to the receiver to allow faster cold start times than would be possible using only broadcast data. This extended ephemeris data could be either server-generated or locally-generated. - Page 73 SE868-V3 Product User Guide 1VV0301205 r4 – 2016-01-20 GDOP: Geometric Dilution of Precision A factor used to describe the effect of satellite geometry on the accuracy of the time and position solution of a GNSS receiver. A lower value of GDOP indicates a smaller error in the solution.
- Page 74 SE868-V3 Product User Guide 1VV0301205 r4 – 2016-01-20 NMEA: National Marine Electronics Association QZSS: Quasi-Zenith Satellite System The Japanese SBAS system (part of MSAS). Reacquisition: A receiver, while in normal operation, loses RF signal (perhaps due to the antenna cable being disconnected or a vehicle entering a tunnel), and re-establishes a valid fix after the signal is restored.
- Page 75 SE868-V3 Product User Guide 1VV0301205 r4 – 2016-01-20 UART: Universal Asynchronous Receiver/Transmitter An integrated circuit (or part thereof) which provides a serial communication port for a computer or peripheral device. WAAS: Wide Area Augmentation System The North American SBAS system developed by the US FAA (Federal Aviation Administration).
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Page 76: Safety Recommendations
SE868-V3 Product User Guide 1VV0301205 r4 – 2016-01-20 Safety Recommendations READ CAREFULLY Be sure that the use of this product is allowed in the country and in the environment required. The use of this product may be dangerous and must be avoided in the following areas: •... -
Page 77: Document History
SE868-V3 Product User Guide 1VV0301205 r4 – 2016-01-20 Document History Revision Date Changes 2015-07-13 First issue 2015-07-15 Added Internal LNA information Added Table 4-1 Internal gain value and external gain range. Revised Table 7-1 Default NMEA Output Messages. Revised Table 7-2 Available NMEA Output Messages.
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