Strato Pi CM
From 232

Strato Pi CM

232.00263.00 + tax

In stock - Usually ships within 1 week

Compact industrial Raspberry Pi Compute Module server CE/FCC/IC compliant, with wide-range power supply, RTC, RS-485, watchdog and secure element.

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Also available on: buy-on-mouser


A compact industrial Raspberry Pi

Strato Pi CM is an extremely powerful and compact industrial server based on Raspberry Pi Compute Module, suitable for use in industrial and professional applications where reliability and service continuity are key requirements.

It is compliant with the low voltage and EMC CE directives, as well as the harmonised standards for electromagnetic compatibility, electrical safety, emission and the RoHS directive for hazardous substances. It is also compliant with the applicable FCC rules and IC standards.



  • 2 modules DIN rail case
  • power supply and serial connections on pluggable terminal block

Power supply:

  • 9-28Vdc power supply, with surge and reverse polarity protection, and 1.1A resettable fuse
  • up to 1.9A max continuous current (3A peaks) to the 5V Raspberry Pi Compute Module power supply input pins (at 24Vdc)


  • standard RS-485 interface to the Raspberry Pi serial line, with opto-isolator and electrostatic discharge protection
  • 2 x USB 2.0 type-A ports, with individual power control and fault detection
  • 10/100 Ethernet port


  • embedded Raspberry Pi Compute Module eMMC flash memory (8, 16, or 32 GB)

High reliability and security:

  • hardware watchdog, fully independent from the Raspberry Pi Compute Module, controlled via GPIO
  • real time clock (RTC) with replaceable back-up battery
  • embedded Microchip ATECC608 secure element chip
  • integrated boot loader for the Strato Pi micro-controller, allowing in-field firmware upgrades directly from the Raspberry Pi


  • GPIO-controlled LED
  • LEDs for power supply and serial line activity
  • recessed push-button, hidden behind the front-panel, connected to a GPIO pin




Power supply ⎓dc 24 V nominal (range 9-28 V), max 1.1 A

Reverse polarity protection with 1.1 A resettable fuse

Current consumption at VS+ 12 V⎓

including Raspberry Pi CM 3+, with Ethernet and RS-485 connected, no USB devices

low CPU load: 170 mA

100% CPU load: 410 mA

Actual current consumption may vary based on working conditions

Current consumption at VS+ 24 V⎓

including Raspberry Pi CM 3+, with Ethernet and RS-485 connected, no USB devices

low CPU load: 100 mA

100% CPU load: 220 mA

Actual current consumption may vary based on working conditions

Raspberry platform compatibility Raspberry Pi Compute Module 1

Raspberry Pi Compute Module 3

Raspberry Pi Compute Module 3+ 8GB

Raspberry Pi Compute Module 3+ 16GB

Raspberry Pi Compute Module 3+ 32GB

Raspberry Pi Compute Module 4S 8GB

Raspberry Pi Compute Module 4S 16GB

Raspberry Pi Compute Module 4S 32GB

Serial communication port RS-485 Half-Duplex with automatic data direction management
Serial port baud rates 1200 to 115200
ESD-Protection Voltage on RS-485 A/B ±15 kV human body model

±8 kV contact discharge

Surge protection on RS-485 A/B Surge protection up to ±500 V / 2 Ohms 1.2/50 μs; 600 W peak pulse power capability at 10/1000 μs waveform
Fail safe feature on RS-485 Yes
Real time clock Internal RTCC circuit with backup lithium battery. Only use CR1220 or BR1220 batteries.

Expected battery life without main power supply: ~2 years

Housing standard 2M for DIN rail
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)

Operating temperature CM1, CM3: -20…+50 °C

CM3+, CM4S: -20…+60 °C

Storage temperature -30…+80 °C
Altitude Up to 2000 m
Humidity 5% to 95% RH noncondensing
Protection degree IP20
Weight 160 g (including Raspberry Pi Compute Module)


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