# I/O ## Power In & Expansion Port

### J1 - Power In

Pin	Signal	Type	Description
1	VCC	PWR	10.5 - 26V Input 1A @ 12V Typical
2	VCC	PWR	10.5 - 26V Input 1A @ 12V Typical
3	GND	PWR	N/A
4	GND	PWR	N/A

### J2 - Expansion Port

Pin	Signal	Type	Description
1	UART2_TX	O	3.3V UART OUTPUT - Primary UART
2	UART2_RX	I	3.3V UART INPUT - Primary UART
3	UART3_TX	O	3.3V UART OUTPUT - Secondary UART
4	UART3_RX	I	3.3V UART INPUT - Secondary UART
5	PPS	I	3.3V Pulse Per Second Input - RTK
6	EVENT_OUT	O	3.3V Event Output - RTK
7	TRIGGER	I	3.3V Trigger
8	RSVD1	I/O	Reserved for future use
9	+5V0	PWR	+5V0 @ 500mA
10	+3V3	PWR	+3V3 @ 500mA
11	GND	PWR	N/A
12	GND	PWR	N/A

*** ## Ethernet & Power I/O

### J3 - Power I/O

Pin	Signal	Type	Description
1	VCC	PWR	10.5 - 26V Input 1A @ 12V Typical
2	VCC	PWR	10.5 - 26V Input 1A @ 12V Typical
3	GND	PWR	N/A
4	GND	PWR	N/A
5	SDA	I/O	I^2C - Motor Controller IMU
6	SDL	I/O	I^2C - Motor Controller IMU

### J4 - Ethernet

Pin	Signal - 100BASE-T	Signal - 1000BASE-T	Description
1	TX+	BI_DA+	GRN/WHT
2	TX-	BI_DA-	GRN
3	RX+	BI_DB+	ORG/WHT
4	RX-	BI_DB-	ORG
5	N/A	BI_DC+	BLU/WHT
6	N/A	BI_DC-	BLU
7	N/A	BI_DD+	BRN/WHT
8	N/A	BI_DD-	BRN

*** ## USB-C & Micro SD Card

### J5 - USB-C Used for data transfer to/from sensor. ### J6 - Micro SD Card User for recording diagnostic log file data. --- # Agent Instructions: Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter: ``` GET https://support.senterasensors.com/home/6x-series-sensors-user-guide/integration-information/i-o.md?ask= ``` The question should be specific, self-contained, and written in natural language. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.