SupTronics Technologies


		POE-powered UPS - X1207
		Getting Started - hardware

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Hardware description

Raspberry Pi GPIO used

PIN#	GPIO	Functions
3	GPIO2	I2C-SDA, battery fuel-gauge systems -reading battery voltage and percentage
5	GPIO3	I2C-SCL, battery fuel-gauge systems -reading battery voltage and percentage
31	GPIO6	AC power loss & power adapter failture detection, Low-power supply failed, High-power supply OK
36	GPIO16	Control battery charging, High-charging disabled, Low-charging enabled

Battery voltage level indicators

Battery voltage range (V)	D1	D2	D3	D4	Remark
3.87-4.2	ON	ON	ON	ON	discharging levels of 100%
3.7-3.87	ON	ON	ON	OFF	discharging levels of 75%
3.55-3.7	ON	ON	OFF	OFF	discharging levels of 50%
3.4-3.55	ON	OFF	OFF	OFF	discharging levels of 25%
Below 3.4	OFF	OFF	OFF	OFF	low battery

required hardware

	1		X1207 POE-powered UPS HAT		2		Raspberry Pi 5
	3		Power Supply USB-C 5V 5A		4		micro-SD card (≥16GB) x1

	5		21700 4.2V rechargeable lithium-ion battery x1

	* To ensure reliable operation, you must use a power source that meets the minimum specification: either an 802.3at (PoE+) switch or a 5V/5A USB-C power adapter. An insufficient power supply will prevent the system from starting and may result in a failure to charge the battery.

hardware installation

Step 1

	Insert the M2.5×5mm screw upward through the base mounting hole, then thread the M2.5×13.5mm female-female spacer onto the screw until finger-tight.

Step 2

Uses the pogo pin to connect the X1207 button to the Pi 5's PSW through-hole, providing the same power-on/off functionality. Incompatible with Pi 4B/3B+/3B.
	Position the pogo pin into the designated location on the PCB.
	Insert the lead into the through hole, ensuring it is straight and properly seated.

Step 3

	Plugs the HAT directly into the Pi5's GPIO and PoE pin headers.

Step 4

	Make slight adjustments to the pogo pin to align it with the through hole and ensure insertion.

Step 5

	Secure the UPS HAT to the spacers with four M2.5x5mm screws.

Step 6

	Compatible with unprotected 21700 batteries only (Max. length: 70.3 mm).
	Double-check the polarity of the battery's connector to ensure that "+" is connected to "+" and "-" is connected to "-".
	Polarity also printed on the PCB* - Never make a wrong polarity connection.