Description
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.
Features
Mounting:
- 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)
Connectivity:
- 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
Storage:
- 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
More:
- GPIO-controlled LED
- LEDs for power supply and serial line activity
- recessed push-button, hidden behind the front-panel, connected to a GPIO pin
Highlights
Specifications
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) |