GNS 5894TAC Bedienungsanleitung
GNS 5894TAC StarterKit
Quick guide
confidential information manual
V 0.93, May 17th 2021
1
The GNS 5894TAC StarterKit has been designed to support developers during
design-in of the GNS 5894T & GNS 5894TAC stand alone module solution.
GNS Electronics GmbH
Adenauerstrasse 18
D – 52146 Würselen
Germany
www.gns-electronics.com
GNS 5894TAC StarterKit
Quick guide
confidential information manual
V 0.93, May 17th 2021
2
Introduction
This Quick Guide is a short summary of the most important features of the
GNS5894TAC StarterKit. The complete User Guide is currently not yet
available and will be completed shortly.
This manual shows how to connect the GNS5894TAC StarterKit to a PC in order to
verify GNS 5894TAC Mode-S-A-C all-in-one module performance and test supported
features.
For technical specification, please refer to the GNS5894T_ADSBModul_datasheet.
The GNS5894TAC is a software extension of the GNS5894T, which is additionally able
to receive Mode A/C data. The hardware of the GNS5894TAC is unchanged. For this
reason the GNS5894T_ADSBModul_datasheet can be used as long as no description of
the Mode A/C extension is available.
Connected to a PC, all Mode-S & Mode-A/C Data is routed to the miniUSB port.
GNS5894TAC StarterKit Features
Power supply via Mini-USB socket
Access to all signals of the GNS5894TAC via pin header contacts.
PC data connection via the integrated USB to UART converter or direct access to the serial
interface (3.3V) of the GNS5894TAC for connection to other data processing devices.
5V DC input via mini USB
2 SMA antenna connectors for 1090MHz and GNSS RF In
GNSS active antenna, DC supply (3.3V)
ADS-B “frame indicator”
GNS 5894TAC StarterKit
Quick guide
confidential information manual
V 0.93, May 17th 2021
3
Index
Introduction ............................................................................................................................ 2
1 Description of the GNS 5894TAC StarterKit Hardware .......................................................... 4
2 GNS5894TAC StarterKit Board Layout .................................................................................. 5
3 GNS5894TAC StarterKit Board Block Diagram ...................................................................... 7
3.1 Getting started .............................................................................................................. 7
4 GNS5894TAC StarterKit Hardware ....................................................................................... 8
4.1 Assembly Drawing Top Side (with dimensions) .................................................................. 8
4.2 GNS 5894TAC StarterKit Schematic .................................................................................. 9
4.3 PCB Layout ................................................................................................................. 10
5 ORDERING INFORMATION ................................................................................................. 11
6 RELATED DOCUMENTS ........................................................................................................ 11
7 DOCUMENT REVISION HISTORY ......................................................................................... 11
GNS 5894TAC StarterKit
Quick guide
confidential information manual
V 0.93, May 17th 2021
4
1 Description of the GNS 5894TAC StarterKit Hardware
Typical use of the GNS5894TAC StarterKit and connected external components
Mini USB Data
+5V DC
Power supply
GNSS
Active
Antenna
1090 MHz
antenna
GNS 5894TAC StarterKit
Quick guide
confidential information manual
V 0.93, May 17th 2021
5
2 GNS5894TAC StarterKit Board Layout
RF In SMA
GNSS Antenna
connector
ADS-B frame
indicator
LED
GNS3303
GNSS module
mini USB
connector
FTDI Serial to
USB converter
chip
GNS5894TAC Mode-
S & Mode A/C
receiver
LDO for GNSS
module & Active
GNSS Antenna
Protocol select
Open : ‘Text’-prot.
Closed : HULC-prot.
RF In SMA
1090MHz
Antenna
connector
JP6: direct access
to GNSS signals :
- PPS
- TxD
-
RxD
JP1: direct access to
GNS5894TAC signals :
- TxD, RxD, RTS, CTS
-
NReset
JP2 : FTDI Reset
open : FTDI active
closed : FTDI disabled,
serial data can be
accessed via JP1
Important note:
A DC blocker must be
inserted if a passive GNSS
antenna is used.
GNS 5894TAC StarterKit
Quick guide
confidential information manual
V 0.93, May 17th 2021
6
JUMPER AND CONNECTOR DESCRIPTION
CONNECTOR PIN SIGNAL DESCRIPTION
JP1
1: GND
2: RxD (GNS5894TAC ser. input)
3: TxD (GNS5894TAC ser. output)
4: CTS (H/W handshake CTS input)
5: RTS (H/W handshake RTS output)
6: 3.3V
7: GND
8: \RESET GNS5894TAC, active LOW
Direct access to GNS5894TAC UART.
UART I/O Voltage is 3.3V.
JP2 1: GND
2: \RESET FTDI, active LOW
Open : Operation via USB Port
Close : USB to serial converter is
disabled, ser. Port (JP1) can be
accessed.
JP6
1: GND
2: RxD2 (ser. data from GNSS module)
3: TxD2 (ser. data to GNSS module)
4: PPS (PPS pulse from GNSS module)
5: 3.3V
Serial data connection with GNSS
module. I/O voltage is 3.3V.
PROT.SEL. 1: PS input (pulled up internally)
2: GND
Open : ‘Text’ protocol (AVR mode)
Closed : ‘HULC’ protocol
Description of ADS-B frame indicator:
ADS-B frame indicator
Comment
blinking Mode-S and/or Mode-A/C frames are received and output via the serial
interface.
Off No data is received (or the h/w handshake of the serial interface is not active).
GNS 5894TAC StarterKit
Quick guide
confidential information manual
V 0.93, May 17th 2021
7
3 GNS5894TAC StarterKit Board Block Diagram
3.1 Getting started
1. Connect the TEN-90 and the GNSS active antenna to the GNS 5894TAC StarterKit
2. Connect the GNS 5894TAC StarterKit via USB to a Windows PC
3. After a few seconds the device is ready for use and is displayed in the device manager as "USB
Serial Port" under the category "Ports”.
GNS5894TAC
module
miniUSB
connector
Serial to USB
external active
GNSS antenna
connector
Protocol select
Internal access to
TxD / RxD / RTS / CTS
signals
LDO
5V 3.3V
connectors
UART
5V power
supply
GNS3303
GNSS
module
external 1090MHz
RF connector
UART2
GNSS data
3.3V power sup.
PPS
GNS 5894TAC StarterKit
Quick guide
confidential information manual
V 0.93, May 17th 2021
8
4 GNS5894TAC StarterKit Hardware
4.1 Assembly Drawing Top Side (with dimensions)
GNS 5894TAC StarterKit
Quick guide
confidential information manual
V 0.93, May 17th 2021
9
4.2 GNS 5894TAC StarterKit Schematic
GNS 5894TAC StarterKit
Quick guide
confidential information manual
V 0.93, May 17th 2021
10
4.3 PCB Layout
TOP Layer
BOTTOM Layer
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