Strato Pi UPS Board
91.00 + tax

Strato Pi UPS Board

91.00 + tax

Raspberry Pi industrial expansion board with wide-range power supply, UPS, RTC, RS-232 and RS-485 interfaces, watchdog and secure element

SKU: SPBU30X Category:

For volume pricing or variations fill a quote request

Also available on: buy-on-mouser

Description

The Strato Pi UPS board enhances the Raspberry Pi computer with several hardware features to make it suitable for use in industrial and professional applications where reliability and service continuity are key requirements.

This add-on board is the the core of our Strato Pi UPS server and Strato Pi Touch Display and can be purchased separately for product evaluation, prototypes developments, or custom embedded designs.

Features

Mounting:

  • standard Raspberry Pi 40-pin GPIO header
  • power supply and serial connections on screw terminal block

Power supply:

  • 9-28Vdc power supply, with surge and reverse polarity protection, and 2.2A resettable fuse
  • up to 4.0A max current to the 5V Raspberry Pi power supply input pins (at 24Vdc)
  • auxiliary power supply output voltage, to power external devices through Strato Pi UPS
  • integrated uninterruptible power supply (UPS), with external lead-acid 12V battery
  • 2.2A resettable fuse on battery input
  • simple UPS control and feedback via GPIO

Serial interfaces:

  • standard RS-232 and RS-485 interfaces to the Raspberry Pi serial line, with opto-isolator and electrostatic discharge protection

High reliability and security:

  • hardware watchdog implemented in the Strato Pi board, fully independent from the Raspberry Pi, controlled via GPIO
  • real time clock (RTC) with replaceable back-up battery
  • embedded Microchip ATECC608A secure element chip
  • integrated boot loader for the Strato Pi micro-controller, allowing in-field firmware upgrades directly from the Raspberry Pi

More:

  • buzzer, controlled via GPIO
  • LEDs for power supply, battery and serial line activity

Specifications

Power supply 9-28V⎓ (VDC)

Reverse polarity protection with 2.2A resettable fuse. Surge protection up to ±1000V/2ohms 1.2/50μs

Battery input 12V lead acid battery (not provided).

Suggested capacity: 1.2Ah. Reverse polarity protection with 2.2A resettable fuse. Surge protection up to ±500V/2ohms 1.2/50μs

UPS battery maximum charge voltage 15V
UPS battery charge current 30…100mA
Voltage threshold for switching to battery mode 7.2V, 0.2V hysteresis
Current consumption at VS+ 12V⎓

including Raspberry Pi 4, with Ethernet and RS-485 connected, no USB devices

low CPU load: 320mA

100% CPU load, before throttling: 590mA

100% CPU load, throttled: 500mA

Actual current consumption may vary based on working conditions

Current consumption at VS+ 24V⎓

including Raspberry Pi 4, with Ethernet and RS-485 connected, no USB devices

low CPU load: 190mA

100% CPU load, before throttling: 320mA

100% CPU load, throttled: 260mA

Actual current consumption may vary based on working conditions

Raspberry platform compatibility Pi 4 Model B

Pi 3 Model B+

Pi 3 Model B

Pi 2 Model B

(tested with Pi 4 Model B for regulatory compliance)

Serial communication ports RS-485 Half-Duplex with automatic data direction management

RS-232 Full-Duplex

Baud Rates on COMM ports 1200 to 115200
ESD-Protection Voltage on RS-232 TX/RX ±15kV human body model

±8kV contact discharge

ESD-Protection Voltage on RS-485 A/B ±15kV human body model

±8kV contact discharge

Surge protection on RS-485 A/B Surge protection up to ±500V/2ohms 1.2/50μs; 600W peak pulse power capability at 10/1000μs waveform
Fail safe feature on RS-485 Yes
Electromagnetic immunity compliance EN 61000-4-2 (ESD)

EN 61000-4-3 (Radiated RF Field)

EN 61000-4-4 (Burst/fast transient)

EN 61000-4-5 (Surge)

EN 61000-4-6 (Conducted)

EN 61000-4-8 (Power frequency magnetic field)

Real time clock Internal RTCC circuit with backup lithium battery. Only use CR1025 Lithium / Manganese Dioxide (Li/MnO2) batteries.
Expected battery life without main power supply: ~2 years
Operating temperature 0…+50 °C
Storage temperature -20…+70 °C
Weight 35 g

Documentation

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