SEPTENTRIO AsteRx4 Hardware Manual Download Page 23 | Manualshive

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AsteRx4 Evaluation Kit

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3.4.7

Antenna Connector

The interface board has no antenna connector, the antenna has to be connected directly
to the main or aux MMCX connector of the AsteRx4_OEM board.

When the jumpers are set in their default configuration as defined in section 3.2, a 3.3V-
DC voltage is available at the antenna connector. Other voltage options can be selected
by changing the jumper configuration. Refer to the schematics in section 3.2 for details.

3.5

SD-Card Socket

An SD memory card can be plugged into the SD-card socket on the back side of the
interface board. Refer to section 2.11 for details on the SD-card logging.

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Summary of Contents for AsteRx4

Page 1: ...AsteRx4 Product Family Hardware Manual Version 1 5 0 ...

Page 2: ... 0 March 27 2017 Copyright 2000 2017 Septentrio nv sa All rights reserved Septentrio Satellite Navigation Greenhill Campus Interleuvenlaan 15i 3001 Leuven Belgium http www septentrio com support septentrio com Phone 32 16 300 800 Fax 32 16 221 640 septentrio ...

Page 3: ... 10 Stand By Mode 15 2 11 SD Memory Card Usage 16 2 12 Applicable Firmware Package 17 2 13 Hardware Specifications 17 2 13 1 Power Management 17 2 13 2 Temperature Range 17 3 ASTERX4 EVALUATION KIT 18 3 1 Interface Board Overview 18 3 2 Headers and Jumpers 19 3 3 Push Buttons 21 3 4 Connectors 21 3 4 1 80 pin Connector 21 3 4 2 VCC_IN Connector and Header 21 3 4 3 Event and PPS Header 21 3 4 4 Ser...

Page 4: ...4 4 4 3 5 SD Card Socket 23 APPENDIX A LED STATUS INDICATORS 24 APPENDIX B MEASURING THE ASTERX4 POWER CONSUMPTION 26 ...

Page 5: ...ily comply with the European Union EU Directive 2002 96 EC on waste electrical and electronic equipment WEEE The purpose of this Directive is the prevention of waste electrical and electronic equipment WEEE and in addition the reuse recycling and other forms of recovery of such wastes so as to reduce the disposal of waste If purchased in the European Union please return the receiver at the end of ...

Page 6: ...anied this device Statement 0001 WARNING The power supply provided by Septentrio if any should not be replaced by another If you are using the receiver with your own power supply it must have a double isolated construction and must match the specifications of the provided power supply Statement 0003 WARNING Ultimate disposal of this product should be handled according to all national laws and regu...

Page 7: ...use techniques and equipment designed to protect personnel and equipment from electrostatic discharge Handling Remove static sensitive components and assemblies from their static shielding bags only at static safe workstations a properly grounded table and grounded floor mat and only when you are wearing a grounded wrist strap with a resistor of at least 1 mega ohm in series or other grounding dev...

Page 8: ... 2 1 Mechanical Drawings Weight 68g Height Bottom side components o 80 pin connector 4 57mm o MMCX connector 3 70mm Top side shield height max 3 40mm All mounting holes have an inner diameter of 3 2mm intended for M3 screws Main Aux ...

Page 9: ...9 9 AsteRx4_OEM 9 The break off tabs are shown in yellow below Main Aux ...

Page 10: ...the antenna signal to several receivers make sure that no more than one output of the splitter passes DC Use DC blocks otherwise 2 3 80 pin Connector Connector type SFM 140 02 SM D example of mating connector TFM 140 12 L D A The applicable pin numbering is shown below Pin 1 is closest to the notch Note that this pin numbering may not be the same as the one used by the connector vendor To avoid bo...

Page 11: ...sistors are needed 10k is recommended Always pull up to 3 3V even when using another voltage at the Vin pins It is recommended to connect the pull up resistors to pin 29 VCC_3V3_OUT Never replace a pull up resistor by a direct connection to 3 3V as it could damage the board Conventions Pin Type I Input O Output P Power line LVTTL 3V3 Low Voltage TTL LVTTL means VIL 0 8V VIH 2 0V VOL 0 4V VOH 2 4V ...

Page 12: ...quare wave output from the internal frequency reference EXTREF_STAT tied to ground REF_O is disabled See also section 2 4 41 Gnd Gnd 0 Ground All ground pins must be connected 43 REF_I I LVTTL 10 MHz square wave frequency reference input Input ignored when EXTREF_STAT is left open Leave unconnected when using the internal TCXO reference See also section 2 4 45 SCOM_CTS2 I LVTTL Serial COM 2 CTS li...

Page 13: ...6 Gnd Gnd 0 Ground All ground pins must be connected 38 PPSout O LVTTL PPS output See section 2 5 Leave unconnected if not used 40 Gnd Gnd 0 Ground All ground pins must be connected 42 SSNIn1 I LVTTL Proprietary input Tie to ground 44 Button I LVTTL Input can be connected to a push button used to enable and disable internal SBF and NMEA logging High to low transitions are detected as button presse...

Page 14: ... tri state Use a pull down resistor to avoid a floating electrical level 2 6 General Purpose Output GPx The GP1 GP2 and GP3 pins are general purpose LVTTL digital outputs of which the level can be programmed with the setGPIOFunctionality command During the first seconds after powering up the board these pins are in tri state Use a pull down or a pull up resistor to have the desired level during bo...

Page 15: ...ent USB mode can be checked with the command lif Identification 2 9 Ethernet There is no isolation transformer in the receiver The receiver supports full duplex 10 100 Base T Ethernet communication An example of Ethernet application circuit with isolation transformer is shown below The five lines at the left are connected to pins 72 73 75 77 and 79 of the 80 pin connector 2 10 Stand By Mode In sta...

Page 16: ...in stand by mode by the command exePowerMode ScheduledSleep it will wake up automatically after a prescribed amount of time 2 11 SD Memory Card Usage The receiver can interface to an external SD memory card through the SD card pins of the 80 pin connector The recommended circuit to a 9 pin SD memory card socket is shown below The receiver is compatible with SD cards of up to 32GB The file system i...

Page 17: ...sed power can be saved by turning off all associated hardware This can be done with the setFrontendMode SingleAnt command The activation of the Ethernet interface The Ethernet interface consumes more than 500mW In power critical applications it is recommended not to use Ethernet and to turn off the associated hardware This can be done with the setEthernetMode off command The following table shows ...

Page 18: ...AsteRx4 Evaluation Kit 18 3 AsteRx4 Evaluation Kit 3 1 Interface Board Overview Length 230 mm Width 100 mm Total height 40mm 80 pin connector to the AsteRx4_OEM VCC_IN Events and PPS Ethernet USB Serial ports ...

Page 19: ...r in position 1 2 1 1 2 voltage on AsteRx4_OEM pins 15 16 Vin is 3 3V 2 3 voltage on AsteRx4_OEM pins 15 16 Vin is 5 0V VCC_ANT SELECT Jumper in position 1 2 1 1 2 voltage on AsteRx4_OEM pin 14 Vantenna is 3 3V 2 3 voltage on AsteRx4_OEM pin 14 Vantenna is 5 0V 1 Header pin 1 is identified by a 1 printed on the PCB next to the header The electrical diagram on the next page provides additional deta...

Page 20: ...2 0 2 AsteRx4 Evaluation Kit 20 VCC_ANT Select V_MAIN SELECT VCC_EXT ...

Page 21: ...n 10 is driven low When released the nRST_IN pin is pulled up 3 4 Connectors 3 4 1 80 pin Connector This is where the AsteRx4_OEM receiver must be plugged 3 4 2 VCC_IN Connector and Header With the default jumper configuration as defined in section 3 2 the interface board is powered by the VCC_IN socket connector or equivalently by the VCC_IN 3 pin header located next to it The central pin of the ...

Page 22: ...left pins of this header are all tied to ground 3 4 4 Serial Connectors Electrical levels conform to the RS232 standard RTS CTS lines are supported only on COM2 and COM3 Connection to a PC is done through a null modem cable 3 4 5 USB Connector By default the USB interface is configured in full speed mode USB 1 1 12 Mbps See also section 2 8 Note that it is not possible to power the interface board...

Page 23: ...are set in their default configuration as defined in section 3 2 a 3 3V DC voltage is available at the antenna connector Other voltage options can be selected by changing the jumper configuration Refer to the schematics in section 3 2 for details 3 5 SD Card Socket An SD memory card can be plugged into the SD card socket on the back side of the interface board Refer to section 2 11 for details on ...

Page 24: ...has the DIFFCORLED function see below DIFFCORLED Differential correction indicator In rover PVT mode this LED reports the number of satellites for which differential corrections have been provided in the last received differential correction message RTCM or CMR LED behaviour Number of satellites with corrections LED is off No differential correction message received blinks fast and continuously 10...

Page 25: ...e electrical level at the corresponding pin is high The following table indicates which pin of the 80 pin connector corresponds to each of the LEDs Refer to section 2 3 for a description of all pins pin 61 pin 62 pin 63 pin 66 pin 65 pin 64 pin 34 pin 56 pin 49 pin 51 pin 53 pin 55 pin 59 pin 60 pin 39 pin 42 pin 43 pin 44 pin 50 Pin 52 pin 54 pin 35 pin 38 pin 9 pin 11 pin 69 pin 10 pin 71 ...

Page 26: ...to VCC_IN socket This will power the interface board then apply power to the VCC_EXT 3 pin header 5V max This will power the AsteRx4_OEM receiver board Doing so the receiver board is powered through the VCC_EXT 3 pin header while the rest of the interface board is powered through the VCC_IN socket VCC_EXT is only used to power the AsteRx4_OEM so that the power drawn at that connector is the power ...

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