T200-hardware

T208 Jetson nano UPS HAT 5V 8A

T208 Jetson nano UPS HAT 5V 8A

Power Jack and Connectors

Power input	5Vdc +/- 5% ,≥4A
DC Power Plug Size	5.5*2.5mm
Power input connector	XH2.54mm 2pin
UPS power output	5.1Vdc 8A
Power output connector	XH2.54mm 2pin

1. T208 powers the Jetson Nano via the 40-pin header (Pin 2 & 4)
2. Don't power the Jetson Nano via the Micro USB socket & DC jack
3. T208 can be powered via the onboard DC jack or XH2.54 power input connector.

4-Pin Function Header

Jumper Name	Usage
PLD (Power loss detection)"	Short - AC Power loss or power adapter failure detection enabled (Active if power adapter disconnected) Open - Power loss detection disabled
AON (Auto power-on)	Short - Auto power-on when power applied (Will delay 3 seconds before powering on) Open - Auto power-on disabled

Connector for External Power Switch

Pin No.	Pin Description
1	Power on/off control connecting to switch
2	Ground
3	Ground
4	LED+ for power on /off

1. Please use momentary switch only and don't use latching switch
2. Connector - Pitch 2.0mm 4pos

Power button & control

Press and Release	Jetson Nano and T208 turn on
Auto power off	System shutdown using the GUI
Press and hold for at least 3 seconds	Force shutdown

Function LEDs

LED Name	Usage
AC FAIL	LED red on indicates AC power loss or PSU failure or PSU disconnected
PWR	LED blue indicates Stays on - Power on Stays off - 5V power output off

Pins and GPIO used

Pin No.	Usage
2, 4	+5V power supply
3, 5	I2C for RTC and battery fuel-gauge systems
6, 9	Ground
7	GPIO6 for AC power loss detection (Jumper for PLD inserted, High=power loss,Low=Power supply normal)

Fuel gauge - LED Indicator

Operation of Discharging:

Capacity C (%)	D1	D2	D3	D4
C ≥75%	ON	ON	ON	ON
50%≤C＜75%	ON	ON	ON	OFF
25%≤C＜50%	ON	ON	OFF	OFF
3%≤C＜25%	ON	OFF	OFF	OFF
0%＜C＜3%	Flashing	OFF	OFF	OFF

Operation of charging:

Capacity C (%)	D1	D2	D3	D4
Fully charged	ON	ON	ON	ON
75%≤C	ON	ON	ON	Flashing
50%≤C＜75%	ON	ON	Flashing	OFF
25%≤C＜50%	ON	Flashing	OFF	OFF
C＜25%	Flashing	OFF	OFF	OFF

18650 battery dimension

Do not use 18650 battery with built-in protection circuit