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WARNING: Handling of ESD Sensitive Devices 

 

Electrostatic discharge is a sudden flow of current from one object to another either object or to 
ground. Electrostatic charges can accumulate on common items such as polystyrene drinking cups, 
cellophane tape, synthetic clothing, untreated foam packaging material, and untreated plastic bags 
and work folders, to name but a few. 

 

Electronic  components  and  assemblies,  such  as  Septentrio  OEM  receivers,  can  be  permanently 
damaged or destroyed when near or in contact with electro-statically charged objects. When you 
handle components or assemblies that are not in protective bags and you are not sure whether 
they are static-sensitive, assume that they are static-sensitive and handle them accordingly. 

 

 
 
 
 
 
 
 
 

 

Everyone who is working with ESD-sensitive devices must be aware of these rules. 
 

General rules 

Always test your ground strap, bench mat, conductive work surface, and ground cord before either 
removing  components  and  assemblies  from  their  protective  bags  or  before  beginning  any 
disassembly  or  assembly  procedures.  Perform  all  service  procedures  in  a  static-protected 
environment.  Always  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  device.  Avoid  having  non-ESD  safe  material  on  the  workbench.  Clear  the 
work station of static generators like e.g. polyethylene, vinyl’s, foam, notebooks, document 
holders, etc. 

 

Use only grounded tools when manipulating static-sensitive components and assemblies. 

 

Place and seal static-sensitive components and assemblies in their original static-shielding 
bags before removal from static-protected areas. 

 

Stacking of board assemblies should be avoided to prevent physical damage to devices.  
 

Transport & Storage 

 

Limit as much as possible the manipulation of ESD-sensitive devices and components. 

 

Handle ESD-sensitive parts as far as possible in their (original) protective packaging. 

 

Protect  ESD-sensitive  components  against  dust  as  this  is  a  possible carrier  of  static  loads. 
Assembled  printed  circuit  boards  (PCB’s)  must  always  be  placed  in  an  anti-static  shielding 
bag, box or PCB containers during transport between workplaces or to a warehouse. 

 
 

Содержание AsteRx-m Series

Страница 1: ...AsteRx m Product Family Hardware Manual Version 3 3 0 ...

Страница 2: ...rsion 3 3 0 December 21 2016 Copyright 2000 2016 Septentrio nv sa All rights reserved Septentrio 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 ...

Страница 3: ...l and Environmental 9 2 4 Power Consumption 9 2 5 Antenna Selection 9 2 6 30 pin Connector 10 2 7 SD Memory Card Usage 11 2 8 Power Down 13 3 ASTERX M EVALUATION BOARD 14 4 ASTERX M UAS 16 4 1 Connectors 17 4 2 Power Supply Options 17 4 3 LEDs 18 4 4 Temperature Range 18 4 5 Schematics 18 APPENDIX A LED STATUS INDICATORS 20 ...

Страница 4: ...mily 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...

Страница 5: ...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...

Страница 6: ...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...

Страница 7: ...7 7 AsteRx m OEM 7 2 AsteRx m OEM Bottom View Internal antenna External antenna C Top View D B A A B D C ...

Страница 8: ...ing holes marked A B C D above Diameter 3 2mm Outer ring diameter 5mm Weight 26 7g 2 2 Connector Types RF connectors U FL Digital connector 30 pin DF40C 30DS 0 4V 51 Pin 1 is indicated in the bottom view picture Pin 2 is above pin 1 etc The mated stacking height is 3 5mm A B D C ...

Страница 9: ...cking GPS SBAS 2 Assuming an average of 20 satellites in tracking GPS GLONASS SBAS 2 5 Antenna Selection By default the receiver automatically switches to the external antenna when an active antenna is detected on the external antenna input connector Detection is based on the monitoring of the current drawn from the external antenna connector When that current exceeds 6mA an active antenna is assu...

Страница 10: ...GND Gnd 0 Ground All ground pins must be connected 5 USB_D I O USB USB data signal positive D Leave unconnected if USB not used 7 USB_Vbus I 4 35V V 5 25V USB VBUS This pin cannot be used to power the receiver Leave unconnected if USB not used 9 TX1 O LVTTL Serial COM 1 transmit line inactive state is high Leave unconnected if not used 11 GND Gnd 0 Ground All ground pins must be connected 13 TX2 O...

Страница 11: ...n is tranferred to the central conductor of the two antenna connectors Typically tie to Vin pins to provide a 3 3V voltage to the antenna 20 nPDN I PU LVTTL Receiver is shut down low power mode when driven low It is recommended to keep nPDN low for at least 5 seconds to ensure complete power down This functionality is not available on old board revisions See section 2 8 for details Leave unconnect...

Страница 12: ...d The SD card mount status can be checked with the LOGLED pin see Appendix A To avoid data corruption the SD card needs to be unmounted i e the LOGLED must be off before turning off the power supply This can be done in two ways 1 By entering the exePowerMode StandBy command before turning off the receiver 2 By driving the button pin pin 25 low for at least 5 seconds before turning off the receiver...

Страница 13: ...l on older board versions versions GRB00231000AB03xx and GRB00231000AB04xx The board version is printed on the board label In case you need the nPDN functionality and it is not available in your particular version of the board we recommend implementing the following circuit ...

Страница 14: ...y is required The COM1 subD 9 connector can be used to communicate with the receiver s COM1 serial port Only the Receive pin 2 and Transmit pin 3 lines of the subD 9 connector are functional The electrical level is RS232 COM2 and COM3 are available on 3 pin headers COM2 is at RS232 level and COM3 at LVTTL level See picture above for a description of the header pins Note that the headers may not be...

Страница 15: ...1 5 1 AsteRx m Evaluation Board 15 The PPS Out signal 3 3V LVTTL is available from pin 9 of the subD 9 connector The DC voltage at the antenna connectors is set to 3 3V ...

Страница 16: ...iver board mounted on an interface card specifically designed for easy integration in UAS Unmanned Aerial Systems and mobile mapping applications This chapter provides information on the interface card only Refer to chapter 2 for the specifications of the AsteRx m receiver board 1 2 ...

Страница 17: ... or Prontor Compur interface to allow the AsteRx m to timetag the pictures and provide the position at the exact time the picture was taken J8 DF13 4P 1 25DSA Reserved J10 1 RA Header 1x2 6 30V DC supply Can be directly connected to a battery pack J11 1 RA Header 1x3 5V DC out max 2A J12 DM3AT SF PEJM5 µSD card socket for GNSS measurement logging J13 1 V Header 1x2 Connects to the Button pin of As...

Страница 18: ...Refer to Appendix A for a description of the LOG and PVT LEDs 4 4 Temperature Range The interface board operates in the same temperature range as the AsteRx m receiver 40 to 85 C 4 5 Schematics The complete interface board shematics is shown below Components in dashed red color are non fitted by default Components in bold red color are fitted ...

Страница 19: ...1 9 1 AsteRx m UAS 19 ...

Страница 20: ...ites 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 times per second 0 blinks once then pauses 1 2 blinks twice then pauses 3 4 blinks 3 times then pauses 5 6 blinks 4 times then pauses 7 8...

Страница 21: ...D Behaviour LOGLED LED is off when the external SD card is not present or not mounted LED is on when the SD card is present and mounted Short blinks indicate logging activity During boot i e during the first seconds after powering the receiver the state of the LEDs is not defined except for the POWERLED ...

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