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GNS 5894TAC StarterKit
J
C
UMPER AND
ONNECTOR
C
P
ONNECTOR
JP1
JP2
JP6
P
.
.
ROT
SEL
Description of ADS-B frame indicator:
ADS-B frame indicator
blinking
off
3 GNS5894TAC StarterKit Board Block Diagram
miniUSB
connector
D
ESCRIPTION
IN
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
1: GND
2: \RESET FTDI, active LOW
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
1: PS input (pulled up internally)
2: GND
Comment
Mode-S and/or Mode-A/C frames are received and output via the serial
interface.
No data is received (or the h/w handshake of the serial interface is not active).
3.3V power sup.
LDO
5V 3.3V
5V power
connectors
supply
Serial to USB
UART
S
IGNAL
GNS3303
GNSS
module
GNS5894TAC
module
Protocol select
Quick guide
confidential information
D
ESCRIPTION
Direct access to GNS5894TAC UART.
UART I/O Voltage is 3.3V.
Open : Operation via USB Port
Closed : USB to serial converter is
disabled, ser. Port (JP1) can be
accessed.
Serial data connection with GNSS
module. I/O voltage is 3.3V.
Open : 'Text' protocol (AVR mode)
Closed : 'HULC' protocol
external active
GNSS antenna
connector
Internal access to
TxD / RxD / RTS / CTS
signals
external 1090MHz
RF connector
V 0.9, Oct 5
manual
6
th
2020
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