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__NOTOC__
{{GD Template Impl}}
Function Description
[[File:T208-function1.png|thumb|right|T208 Jetson nano UPS HAT 5V 8A]]
[[File:T208-function3.png|thumb|right|T208 Jetson nano UPS HAT 5V 8A]]
==Power Jack and Connectors==
{| class="wikitable collapsible collapsed"
| 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
|}
# T208 powers the Jetson Nano via the 40-pin header (Pin 2 & 4)
# Don't power the Jetson Nano via the Micro USB socket & DC jack
# T208 can be powered via the onboard DC jack or XH2.54 power input connector.
==4-Pin Function Header==
{| class="wikitable collapsible collapsed"
! Jumper Name !! Usage
|-
| PLD
(Power loss detection)"
|| Short - AC Power loss or power adapter failure detection enabled
<span style="color:red;">(Active if power adapter disconnected)</span>
Open - Power loss detection disabled
|-
| AON
(Auto power-on)
|| Short - Auto power-on when power applied
<span style="color:red;">(Will delay 3 seconds before powering on)</span>
Open - Auto power-on disabled
|}
==Connector for External Power Switch==
{| class="wikitable collapsible collapsed"
! Pin No. !! Pin Description
|-
| 1 || Power on/off control connecting to switch
|-
| 2 || Ground
|-
| 3 || Ground
|-
| 4 || LED+ for power on /off
|}
# Please use <span style="color:red;">momentary</span> switch only and don't use latching switch
# Connector - Pitch 2.0mm 4pos
==Power button & control==
{| class="wikitable collapsible collapsed"
| 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==
{| class="wikitable collapsible collapsed"
! 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==
{| class="wikitable collapsible collapsed"
! 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==
<span style="color:red;">Operation of Discharging:</span>
{| class="wikitable collapsible collapsed"
! 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
|}
<span style="color:red;">Operation of charging:</span>
{| class="wikitable collapsible collapsed"
! 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==
[[File:18650size.png]]
<span style="color:red;">Do not use 18650 battery with built-in protection circuit</span>
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{{GD Template Impl}}
Function Description
[[File:T208-function1.png|thumb|right|T208 Jetson nano UPS HAT 5V 8A]]
[[File:T208-function3.png|thumb|right|T208 Jetson nano UPS HAT 5V 8A]]
==Power Jack and Connectors==
{| class="wikitable collapsible collapsed"
| 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
|}
# T208 powers the Jetson Nano via the 40-pin header (Pin 2 & 4)
# Don't power the Jetson Nano via the Micro USB socket & DC jack
# T208 can be powered via the onboard DC jack or XH2.54 power input connector.
==4-Pin Function Header==
{| class="wikitable collapsible collapsed"
! Jumper Name !! Usage
|-
| PLD
(Power loss detection)"
|| Short - AC Power loss or power adapter failure detection enabled
<span style="color:red;">(Active if power adapter disconnected)</span>
Open - Power loss detection disabled
|-
| AON
(Auto power-on)
|| Short - Auto power-on when power applied
<span style="color:red;">(Will delay 3 seconds before powering on)</span>
Open - Auto power-on disabled
|}
==Connector for External Power Switch==
{| class="wikitable collapsible collapsed"
! Pin No. !! Pin Description
|-
| 1 || Power on/off control connecting to switch
|-
| 2 || Ground
|-
| 3 || Ground
|-
| 4 || LED+ for power on /off
|}
# Please use <span style="color:red;">momentary</span> switch only and don't use latching switch
# Connector - Pitch 2.0mm 4pos
==Power button & control==
{| class="wikitable collapsible collapsed"
| 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==
{| class="wikitable collapsible collapsed"
! 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==
{| class="wikitable collapsible collapsed"
! 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==
<span style="color:red;">Operation of Discharging:</span>
{| class="wikitable collapsible collapsed"
! 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
|}
<span style="color:red;">Operation of charging:</span>
{| class="wikitable collapsible collapsed"
! 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==
[[File:18650size.png]]
<span style="color:red;">Do not use 18650 battery with built-in protection circuit</span>
<!--Add review function! -->
<comments />
<!--Please choose the -->
<!--Remove other categories, just keep the appropriate categories -->
[[Category:Product Manual]]
[[Category:Raspberry pi]]