Ublox C101-D9C User manual

UBX-21009111 - R02
C1-Public www.u-blox.com
C101-D9C
Application board (rev. C)
User guide
Abstract
This document explains the use of C101-D9C application board. The C101-D9C board enables
customers to evaluate QZSS L6 correction services with the NEO-D9C correction data receiver.

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Document information
Title C101-D9C
Subtitle Application board (rev. C)
Document type User guide
Document number UBX-21009111
Revision and date R02 17-Jan-2022
Disclosure restriction C1-Public
This document applies to the following products:
Product name Type number Firmware version PCN reference
C101-D9C C101-D9C-0-00 FW QZS 1.01 N/A
u-blox or third parties may hold intellectual property rights in the products, names, logos and designs included in this
document. Copying, reproduction, modification or disclosure to third parties of this document or any part thereof is only
permitted with the express written permission of u
-blox.
The information contained herein is provided “as is” and u
-blox assumes no liability for its use. No warranty, either express or
implied, is given, including but not limited
to, with respect to the accuracy, correctness, reliability and fitness for a particular
purpose of the information. This document may be revised by u
-blox at any time without notice. For the most recent
documents, visit www.u
-blox.com.
Copyright © u
-blox AG.

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Contents
Document information .............................................................................................................................2
Contents .......................................................................................................................................................3
1Introduction ..........................................................................................................................................4
1.1 Package contents .......................................................................................................................................4
2C101-D9C product overview............................................................................................................5
2.1 Components.................................................................................................................................................5
2.2 Jumpers........................................................................................................................................................6
3C101-D9C standalone operation....................................................................................................7
4C101-D9C operation with C099-F9P.............................................................................................9
4.1 C101-D9C/C099-F9P via Arduino shield..............................................................................................10
Appendix .................................................................................................................................................... 12
AGlossary .............................................................................................................................................. 12
BAntenna specification (L1/L2/E5b/L6)...................................................................................... 12
CC101-D9C schematics.................................................................................................................... 13
Related documentation......................................................................................................................... 16
Revision history ....................................................................................................................................... 16
Contact....................................................................................................................................................... 17

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1Introduction
The C101-D9C board is a convenient tool that allows customers to become familiar with the u-blox
NEO-D9C QZSS L6 receiver. The board provides facilities for evaluating the product and
demonstrating its key features.
NEO-D9C is a QZSS L6 receiver that brings QZSS Centimeter Level Augmentation Service (CLAS)
support to u-blox GNSS modules, enabling centimeter-level navigation. The receiver can also track
the experimental MADOCA service transmitted on the QZSS L6 signal.
The C101-D9C application board offers:
•NEO-D9C module for use as QZSS L6 correction data receiver
•USB connection for communication and power supply
•L6 antenna connection for receiving the satellite data stream
•Arduino shield connection
1.1 Package contents
The delivered package contains:
•C101-D9C board
•Multiband antenna (L1/L2/E5b/L6)
•Antenna ground plane (12 cm circular)
•USB interconnect cable
•Jumper connectors
Prior to using the board, it is useful to download the appropriate evaluation software and keep handy
the documents listed in the Related documents section.

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2C101-D9C product overview
2.1 Components
C101-D9C houses the NEO-D9C QZSS L6 receiver. The board is powered from the USB cable
connection or via Arduino shield. The main components of the board are listed below and shown in
Figure 1 and Figure 2:
•Native USB port
•FTDI USB bridge
•SMA RF connector and antenna supply capability (L-band)
•UART2 interface through Arduino shield
•NEO-D9C RESET button
•NEO-D9C SAFEBOOT button
Figure 1: C101-D9C block diagram

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Figure 2: C101-D9C quick start basic overview
2.2 Jumpers
The board is delivered with the following default jumpers:
•J6: This jumper provides 3.3 V power supply to an external active antenna plugged to the SMA RF
connector. The current limit circuit is also enabled up to 60 mA.
•J8: This jumper switches the communication from the UART2 of the NEO-D9C to the UART1 or
UART2 of the C099-F9P, when connected via the Arduino shield (refer to section 4.1 for further
details).
Figure 3: C101-D9C jumpers overview
For further details, see the C101-D9C schematic in Appendix C.

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3C101-D9C standalone operation
This section provides some quicksteps to enable NEO-D9C standalone operation and connecting via
u-center (see u-center user guide [3]).
•Connect the supplied L6 band antenna to the RF SMA connector.
•Connect the USB to a Windows PC, this will power the board. The FTDI and USB drivers will be
installed automatically from Windows Update when you connect the board for the first time.
•The power LED will turn on in blue color.
•Start the Device Manager utility from Windows. Two new ports will be visible under the Ports tab:
the USB Serial Device is the Native USB port and the USB Serial Port is the FTDI USB bridge port,
as shown in Figure 5.
Figure 4: Windows Device Manager Ports identifications
Figure 5: FTDI USB bridge and USB ports properties
•Start u-center and connect to one of the COM ports. If you are using the FTDI USB bridge, make
sure the baud rate in u-center is set to 9600.
•Poll UBX-MON-VER message and check the content as shown in Figure 6 .
Figure 6: UBX-MON-VER message

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•Poll or enable the UBX-RXM-QZSSL6 message to check the received correction data.
Figure 7: UBX-RXM-QZSSL6 message
For further details regarding the UBX-RXM-QZSSL6 message, see the related Interface description
[4].

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4C101-D9C operation with C099-F9P
It is possible to use the C101-D9C board together with C099-F9P. Figure 9 shows how to interface
the C101-D9C board with the C099-F9P board. Two types of connections are available:
•USB interface (through PC)
•Arduino shield interface (UART2 direct connection)
When the USB connection is used, the corrections are provided through the host computer. Security
checks and data conversion are the responsibility of the user application, as well as the forwarding of
the corrections to the ZED-F9P.
Figure 8: C101-D9C - C099-F9P interfacing scheme
The provided multiband antenna can be used in combination for ZED-F9P and NEO-D9C, RF signal
splitter is needed. For further details, see the antenna specification in Appendix B.

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4.1 C101-D9C/C099-F9P via Arduino shield
Figure 9 shows the placement of the Arduino connectors on the C101-D9C board and Figure 10 shows
how to physically connect the C099-F9P board to the C101-D9C board via the Arduino shield. Jumper
J18 on the C099 board is needed for the ZED-F9P to receive the correction data on UART1 port. See
the C099 application board User guide [5] for further details.
Figure 9: C101-D9C Arduino connectors
Figure 10: Connecting C101-D9C to C099-F9P

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Depending on the position of the jumper J8 on the C101-D9C board (as shown following) the ZED-F9P
housed on the C099-F9P board will receive the correction data on the UART1 or UART2:
The ZED-F9P receives the correction data
on UART1.
The ZED-F9P receives the correction data
on UART2.
For further details, see the C101-D9C schematic in Appendix C.
UBX protocol needs to be enabled in output on the UART2 interface of the NEO-D9C to allow the
communication, using the following configuration item:
CFG-UART2OUTPROT-UBX=1
For further details regarding receiver configuration, see the related Interface description [4].

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Appendix
AGlossary
Abbreviation Definition
FTDI Future Technology Device International
GEO Geostationary Earth Orbit
LED Light Emitting Diode
LNA Low Noise Amplifier
RF Radio Frequency
QZSS Quasi Zenith Satellite System
RHCP Right Hand Circular Polarized
SMA Subminiature version A
UART Universal Asynchronous Receiver Transmitter
USB Universal Serial Bus
Table 1: Explanation of the abbreviations and terms used
BAntenna specification (L1/L2/E5b/L6)
The following is an overview of the provided Inpaq L6 antenna, GPSLX09U8W-S6-07-B:

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See the NEO-D9C Integration manual [1] for further details.
CC101-D9C schematics
The following pages show the complete schematics for the C101-D9C evaluation board.

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Related documentation
[1] NEO-D9C Integration manual, UBX-21031631
[2] ZED-F9P Integration manual, UBX-18010802
[3] u-center User guide, UBX-13005250
[4] u-blox D9 QZS 1.01 Interface description, UBX-21031777
[5] C099 AppBoard User guide, UBX-18055649
☞For product change notifications and regular updates of u-blox documentation, register on our
website, www.u-blox.com.
Revision history
Revision Date Name Comments
R01 20-Apr-2021 dama Initial release
R02 17-Jan-2022 dama C1-Public disclosure restriction
Firmware name update
Chapter 4 general update regarding UART2
Related document section update

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Contact
For complete contact information, visit us at www.u-blox.com.
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