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User Manual for BX40C GNSS Board v2.0

27

Table 4.3 6-pin header signal definition

Pin Signal

Type

Description

1

ETH_RD-

I

Ethernet Receiver line minus. Differential pair.

2

I

Ethernet Receiver line plus. Differential pair.

3

CENT_RD

IO

RD Magnetic center tap

4

O

Ethernet Transmit line plus. Differential pair.

5

ETH_TD-

O

Ethernet Transmit line minus. Differential pair.

6

CENT_TD

IO

TD Magnetic center tap.

*Hardware of Ethernet is ready, reserved for future upgrade.

4.2.2 LED Descriptions

There are four LEDs on the front side of the BX40C receiver. The descriptions
for these LEDs are as below.

Table 4.4 LED descriptions

RefDes

Short name

Color

Description

D5

P

Red

Power LED. Steady red indicates the unit is powered
on.

D6

M

Green

RTK LED.RTK correction indicator. Steady green
indicates that the unit is receiving corrections.

D4

F

Orange

FPGA LED. A rapid flash indicates that less than 5
satellites are tracked while a slow flash indicates that
greater than 5 satellites are tracked.

D19

S

Green

Satellite LED. Steady green after powering on.

4.2.3 Reference Schematic of the Interface Board

If an interface board is designed to work with BX40C board, the following are
the reference schematics for the power, serial port, USB port, and CAN port.
Please contact Tersus technical support if you need more about the interface
board.

Содержание BX40C

Страница 1: ...l Version V2 0 20210913 User Manual For BX40C GNSS Board 2021 Tersus GNSS Inc All rights reserved Sales Enquiry sales tersus gnss com Technical Support support tersus gnss com More details please visi...

Страница 2: ...User Manual for BX40C GNSS Board v2 0 I Revision History Rev Description Date Owner 1 0 Initial release 2020 12 23 LC 2 0 Renew 2021 09 13 LYP...

Страница 3: ...S board 2 1 2 Receiver features 3 1 3 Related information 4 1 4 BX40C System Overview 5 1 4 1 BX40C Board 6 1 4 2 Antenna 6 1 4 3 Power Supply 7 1 4 4 Communication Equipment 7 1 4 5 Internal eMMC 7 2...

Страница 4: ...r 17 3 3 Auth Code 22 4 Technical Specifications 23 4 1 BX40C specifications 23 4 2 System integration 26 4 2 1 Connectors on BX40C board 26 4 2 2 LED Descriptions 27 4 2 3 Reference Schematic of the...

Страница 5: ...e in progress 19 Figure 3 6 Firmware update successful 20 Figure 3 7 Advance setting for firmware update 21 Figure 3 8 Advance Update Setting 21 Figure 4 1 3 45V Reference Schematic 28 Figure 4 2 Refe...

Страница 6: ...Document Software used in this User Manual 4 Table 2 1 Definition of the lights on Tersus GNSS Center 12 Table 4 1 BX40C Board Specifications 23 Table 4 2 24 pin header signals definition 26 Table 4 3...

Страница 7: ...Conventions The following conventions are used in this manual Information that supplements or clarifies text A caution that actions operation or configuration may lead to incorrect or improper use of...

Страница 8: ...tion units The BX40C board supports multiple constellations and multiple frequencies to improve the continuity and reliability of the RTK solution even in harsh environments In built 8GB memory makes...

Страница 9: ...B2 B3 support BDS 3 Galileo E1 E5a E5b QZSS L1C A L2C L5 Supports 576 channels Centimeter level position accuracy Flexible interfaces such as RS232 TTL USB CAN Ethernet Supports PPS output and event m...

Страница 10: ...bx40 c under Documents Tersus Tool Suite Tersus Tools including TersusDownload TersusGeoPix TersusGNSSCenter TersusUpdate TersusRinexConverter https www tersus gnss com software RTKLIB A free popularl...

Страница 11: ...unications equipment GNSS antenna with Low Noise Amplifier LNA The BX40C receiver is illustrated in the figure below Figure 1 1 System Overview of BX Boards Note 1 BX40C only support single antenna 2...

Страница 12: ...on sources of interference Digital Section The core of the digital section is the base band which is realized with a FPGA chip The digital section digitizes and processes the base band signals to obta...

Страница 13: ...capable of delivering the minimum receiver operating voltage and power is required The receiver operates at 3 45V 1 4 4 Communication Equipment A computer a tablet or other data communications device...

Страница 14: ...to the shipping carrier Please check each item according to your order and the item list to confirm that all the accessories are correct for the purchased order 2 2 Environmental conditions Install t...

Страница 15: ...rsus support if problem occurs when an antenna from other vendors is used When installing the antenna Choose an antenna location with a good view of the sky so that there is no obstruction from horizo...

Страница 16: ...a Install the BX40C board in an enclosure or on a mother board b Mount the GNSS antenna to a secure stable structure c Connect the GNSS antenna to the receiver with a GNSS antenna cable d Apply power...

Страница 17: ...accepted ESD handling practices could cause damage to the board permanently The warranty may be void if equipment is damaged by ESD 2 6 Tersus GNSS Center Software BX40C receiver has serial ports henc...

Страница 18: ...on with the receiver is established RED the communication with the receiver is not established GPS GREEN valid GPGGA is received RED No valid GPGGA is received Base GREEN valid corrections are receive...

Страница 19: ...ws the antenna signals must be received and the following three loggings must be input to the receiver LOG GPGGA ONTIME 1 output position and time LOG GPGSV ONTIME 1 output SVs in view elevation and S...

Страница 20: ...ervations LOG COM2 RTCM1094 ONTIME 1 output Galileo observations LOG COM2 RTCM1114 ONTIME 1 output QZSS observations LOG COM2 RTCM1124 ONTIME 1 output BeiDou observations LOG COM2 RTCM1230 ONTIME 10 o...

Страница 21: ...on will be different after a power cycle even if the antenna is installed at the same point if POSAVE command is input If you require a cm level accuracy of base and rover then a Configure the base re...

Страница 22: ...by email support tersus gnss com The firmware version of a Tersus receiver can be updated in field Connect the COM2 port of the receiver with Tersus GNSS Center and input LOG VERSION in the text conso...

Страница 23: ...S Center software and communicate with the receiver refer to section 2 6 for details Make sure the receiver has finished initialization which can be confirmed by input LOG VERSION in the console windo...

Страница 24: ...ure 3 2 Stop button on Tersus GNSS Center 4 Select Tools UpdateFirmware Figure 3 3 Find UpdateFirmware in Tools bar 5 Select the upgrade file When a file is selected the file is shown in the Update Fi...

Страница 25: ...The following figure shows the firmware is upgrading two progresses are included in the firmware update Figure 3 5 Update in progress Do not power off the receiver during the verification and update p...

Страница 26: ...utomatically 9 After the board is booted the firmware version can be confirmed by repeating step 2 Note There is Advance Setting option in the firmware update page if a receiver cannot boot up success...

Страница 27: ...Next in the previous interface power off the receiver wait for five seconds and power on the receiver again Figure 3 8 Advance Update Setting After firmware update is finished power off the receiver...

Страница 28: ...code input LOG VERSION LOG AUTHLIST In the text console window of Tersus GNSS Center when the receiver is connected with computer and send all the output information to Tersus technical support If the...

Страница 29: ...E5b QZSS L1 C A L2C L5 GNSS Channels 576 Position Accuracy RMS Single point positioning 1 5m Horizontal 3 0m Vertical RTK positioning 8mm 1ppm Horizontal 15mm 1ppm Vertical DGPS positioning 0 25m Hori...

Страница 30: ...ilt 8GB memory Communication Serial ports RS 232 x1 TTL x2 COM baud rate Up to 921600bps USB ports USB 2 0 device x1 PPS ports LVTTL x1 Event mark LVTTL x2 CAN ports ISO DIS 11898 x1 Ethernet 10BaseT...

Страница 31: ...v2 0 25 Heat Sink Position Note For optimum heat transfer Tersus recommends the use of thermal interface materials between the processor and the heat sink Environmental Operating Temperature 40 C 75...

Страница 32: ...el 8 EVENT1 IO Event1 input 3 45V TTL level 9 PWRLED O Power indicator high when unit is on low when off 10 SATLED O Satellite LED rapid flash indicates 5 satellites slow flash indicates 5 satellites...

Страница 33: ...ptions for these LEDs are as below Table 4 4 LED descriptions RefDes Short name Color Description D5 P Red Power LED Steady red indicates the unit is powered on D6 M Green RTK LED RTK correction indic...

Страница 34: ...User Manual for BX40C GNSS Board v2 0 28 Figure 4 1 3 45V Reference Schematic Figure 4 2 Reference Schematic for a Serial Port Figure 4 3 Reference Schematic for USB...

Страница 35: ...f the collection frequency increases the data size would increase proportionately The detailed steps for static data collection are as follows UNLOGALL remove all logs LOG FILE RANGECMPB ONTIME 15 00...

Страница 36: ...ter via the cables below Connect the COMM2 port of a BX40C receiver to the USB port of a computer using COMM2 7pin to USB DB9 cable and DB9 Male to USB Type A Male converter cable Figure 5 1 COMM2 7pi...

Страница 37: ...VR Tool The steps of BX40C communicating with STRSVR tool are as follows 1 Power on the BX40C receiver connect COM1 and COM2 to the computer COM2 is to communicate with Tersus GNSS Center COM1 is to r...

Страница 38: ...5 7 NTRIP Client configuration 4 If needed draft position of the receiver is input refer to the following figure Figure 5 8 Draft position of the receiver 5 Go back to the main page and click Start If...

Страница 39: ...User Manual for BX40C GNSS Board v2 0 33 software Figure 5 9 Input and Output data in progress...

Страница 40: ...l NAvigation Satellite System GNSS Global Navigation Satellite System GPS Global Positioning System IF Intermediate Frequency IMU Inertial Measurement Unit IO Input Output LED Light Emitting Diode LNA...

Страница 41: ...VRS Virtual Reference Station WAAS Wide Area Augmentation System WGS84 World Geodetic System 1984 Proprietary Notice All Information in this document is subject to change without notice and does not...

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