Connectors and Headers¶

The AIR-T contains many interfaces with which to interact. In this document, we provide a description of the currently supported interfaces.

AIR-T Drawing¶

AIR-T Drawing

Headers¶

Label	Header	Description	AirStack Version Support
J1	SATA	SATA port for Jetson TX2	0.1.0+
J2	RX1	RF receiver input 1	0.1.0+
J3	RST	Jetson reset button	0.1.0+
J4	PWR LED	Power indicator for enclosure LED	0.1.0+
J5	Ethernet	1 Gbps Ethernet RJ45	0.1.0+
J6	PWR	Power button	0.1.0+
J7	PPS	Trigger (Input)	0.3.0
J8	ORX	Observation receiver input	In Development
J9	SNX	Sniffer receiver input	In Development
J12	SD Card	Jetson SD card reader	0.1.0+
J13	Jetson Module	400 pin connector for Jetson	0.1.0+
J14	Reserved	Reserved	N/A
J15	Jetson Fan	Jetson fan connector	0.1.0+
J16	HDMI	Jetson HDMI connector	0.1.0+
J17	TX1	Transmit channel 1	0.3.0+
J18	TX2	Transmit channel 2	0.3.0+
J19	USB3	Jetson USB 3.0 interfaces	0.1.0+
J20	USB2	Jetson USB 2.0 and serial connection	0.1.0+
J21	Jetson Expansion	Jetson expansion header. See below	0.1.0+
J22	RX External LO	External LO for RF front end	0.2.0+
J23	TLO	External LO input for transmitter	In Development
J24	SPI Voltage	SPI voltage connector	0.1.0+
J25	Power Socket	DC power input	0.1.0+
J26	FPGA JTAG	FPGA JTAG interface	0.1.0+
J27	Charge Control	Jetson charge control	In Development
J28	RX2	RF receiver input 2	0.1.0+
J29	FPGA SPI Programming	SPI programming interface for FPGA	In Development
J30	FPGA SPI Select	-	N/A
J31	FPGA PMOD	-	0.1.0+
J32	FPGA XADC	-	N/A
J33	FPGA XADC Analog Input	-	N/A
J34	FPGA XADC Voltage Select	-	N/A
J35	FPGA XADC VIN	-	N/A
J36	FPGA XADC VREF	-	N/A
J37	XADC AGND	-	N/A
J38	XADC AGND L3	-	N/A
J39	FPGA TP MGTAVCC	-	N/A
J40	TP Ground	-	N/A
J41	FPGA TP MGTAVTT	-	N/A
J42	TP Ground	-	N/A
J43	FPGA XADC VCCINT	-	N/A
J44	Enclosure Fan	Exhaust fan power	0.1.0+
J45	FPGA TP (not jumper)	-	N/A
J46	USB UART	-	0.1.0+
J47	REF	10 MHz reference input	0.2.0+
J48	Recovery Button	Jetson force recovery button	0.1.0+
U23	Digilent USB JTAG	Programming interface for FPGA	0.1.0+

Expansion Header (J21)¶

The expansion header contains many different signals and interfaces to the Jetson TX2 Module. These interfaces are outlined in the diagrams below.

AIR-T J21 Photo

Last update: May 10, 2022