Sferalabs Strato Pi Base Manuale utente
!
Strato Pi Base User Guide
June 2020
Revision 023
SPBB30X Strato Pi Base board
SPMB30X Strato Pi Base server with Raspberry Pi 3 Model B
SPMB30XP Strato Pi Base server with Raspberry Pi 3 Model B+
SPMB30X41 Strato Pi Base server with Raspberry Pi 4 Model B 1GB
SPMB30X42 Strato Pi Base server with Raspberry Pi 4 Model B 2GB
SPMB30X44 Strato Pi Base server with Raspberry Pi 4 Model B 4GB
!
Safety information 4
Qualified personnel 4
Hazard levels 4
Safety instructions 5
General safety instructions 5
Battery 5
Introduction 7
Features 8
Usage and connections 9
Device identification 9
Hardware Installation 10
Strato Pi Base board 10
Strato Pi Base server 10
Replacing the RTC backup battery 10
Terminal block 12
Power supply 13
Dedicated GPIO pins 15
Software installation and configuration 16
Installing the Strato Pi utility on Raspbian 16
Installing the Strato Pi kernel module 16
Installing the Real Time Clock software 17
Testing the Real Time Clock 17
Configuring the serial port 18
Using Strato Pi Base 20
Real Time Clock 20
ATECC608A secure element 20
Serial port 20
Buzzer 22
Hardware watchdog 22
Power cycle 23
Advanced configuration 23
Thermal considerations for Strato Pi Base server 24
Block diagram 27
Technical specifications 28
Dimensions 30
Disposal 31
1
Strato Pi Base User Guide
Be sure to always remove the power supply before connecting or
disconnecting the Strato Pi Base board to Raspberry Pi.
Follow all applicable electrical safety standards, guidelines,
specifications and regulations for installation, wiring and operations of
Strato Pi Base.
Carefully and fully read this Strato Pi Base user guide before
installation.
Strato Pi Base is not authorised for use in safety-critical applications where a failure of the
product would reasonably be expected to cause personal injury or death. Safety-critical
applications include, without limitation, life support devices and systems, equipment or
systems for the operation of nuclear facilities and weapons systems. Strato is neither
designed nor intended for use in critical military or aerospace applications or environments
and for automotive applications or environment. Customer acknowledges and agrees that
any such use of Strato Pi Base is solely at Customer's risk, and that Customer is solely
responsible for compliance with all legal and regulatory requirements in connection with
such use.
Sfera Labs S.r.l. may make changes to specifications and product descriptions at any time,
without notice. The product information on the web site or materials is subject to change
without notice.
Please download and read the Sfera Labs Terms and Conditions document available at:
http://www.sferalabs.cc
Strato and Sfera Labs are trademarks of Sfera Labs S.r.l. Other brands and names may be
claimed as the property of others.
"
Copyright © 2015-2020 Sfera Labs S.r.l. All rights reserved.
3
Strato Pi Base User Guide
Safety information
Carefully and fully read this user guide before installation and retain it for future reference.
Qualified personnel
The product described in this manual must be operated only by personnel qualified for the
specific task and installation environment, in accordance with all relevant documentation
and safety instructions. A qualified person should be capable of fully identifying all
installation and operation risks and avoid potential hazards when working with this product.
Hazard levels
This manual contains information you must observe to ensure your personal safety and
prevent damage to property. Safety information in this manual are highlighted by the safety
symbols below, graded according to the degree of danger.
Indicates a hazardous situation which, if not avoided, will result in death or serious
personal injury.
Indicates a hazardous situation which, if not avoided, may result in death or serious
personal injury.
Indicates a hazardous situation which, if not avoided, can result in minor or moderate
personal injury.
Indicates a situation which, if not avoided, can result in damage of property.
DANGER
WARNING
CAUTION
NOTICE
4
Strato Pi Base User Guide
Safety instructions
General safety instructions
Protect the unit against moisture, dirt and any kind of damage during transport, storage
and operation. Do not operate the unit outside the specified technical data.
Never open the housing. If not otherwise specified, install in closed housing (e.g.
distribution cabinet). Earth the unit at the terminals provided, if existing, for this purpose.
Do not obstruct cooling of the unit. Keep out of the reach of children.
Life threatening voltages are present within and around an open control cabinet.
When installing this product in a control cabinet or any other areas where dangerous
voltages are present, always switch off the power supply to the cabinet or equipment.
Risk of fire if not installed and operated properly.
Follow all applicable electrical safety standards, guidelines, specifications and regulations
for installation, wiring and operations of this product.
The Raspberry Pi board could generate a substantial amount of heat when the software
forces the CPU and/or GPU to operate at high load levels. Ensure that the product is
properly installed and ventilated to prevent overheat.
The connection of expansion devices to this product may damage the product and other
connected systems, and may violate safety rules and regulations regarding radio
interference and electromagnetic compatibility.
Use only appropriate tools when installing this product. Using excessive force with tools
may damage the product, alter its characteristics or degrade its safety.
Battery
This product uses a small lithium non-rechargeable battery to power its internal real time
clock (RTC).
WARNING
WARNING
NOTICE
5
Strato Pi Base User Guide
Improper handling of lithium and lead-acid batteries can result in an explosion of the
batteries and/or release of harmful substances.
Worn-out or defective batteries can compromise the function of this product.
Replace the RTC lithium battery before it is completely discharged. The lithium battery
must be replaced only with an identical battery. See the "Replacing the RTC backup
battery" section for instructions.
Do not throw lithium batteries into fire, do not solder on the cell body, do not recharge, do
not open, do not short-circuit, do not reverse polarity, do not heat above 100°C and protect
from direct sunlight, moisture and condensation.
Dispose of used batteries according to local regulations and the battery manufacturer's
instructions."
WARNING
6
Strato Pi Base User Guide
Introduction
Strato Pi Base enhances the Raspberry Pi Model B version 2, 3 and 4 computers with
several hardware features to make it suitable for use in professional applications where
reliability and service continuity are key requirements.
Strato Pi Base is available as a bare board or fully assembled unit, including a Raspberry
Pi 3 Model B or B+ or Raspberry Pi 4 Model B, in a standard DIN-rail case.
The information contained in this manual covers all versions, except where explicitly stated
otherwise. The bare board is called “Strato Pi Base board”, while the assembled unit is
“Strato Pi Base server”.
STRATO PI BASE WITH RASPBERRY PI 3 MODEL B+
STRATO PI BASE WITH RASPBERRY PI 4 MODEL B
7
Strato Pi Base User Guide
Features
Strato Pi Base board and server:
✓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)
✓real time clock with replaceable CR1025 Lithium / Manganese Dioxide back-up battery
✓standard RS-232 and RS-485 interfaces to the Raspberry Pi serial line, with opto-
isolator and electrostatic discharge protection.
✓on-board buzzer, connected to a GPIO pin of the Raspberry Pi board, for acoustic
feedback
✓hardware watchdog implemented in the Strato Pi board, fully independent from the
Raspberry Pi, controlled via the GPIO pins of the Raspberry Pi board
✓integrated boot loader for the Strato Pi micro-controller, allowing in-field firmware
upgrades directly from the Raspberry Pi
✓embedded Microchip ATECC608A secure element chip
✓power supply and serial connections on a screw terminal block
✓on-board LEDs for power supply and serial line activity.
Strato Pi Base server only:
✓pre-assembled and tested Raspberry Pi 3 Model B or B+ or Raspberry Pi 4 Model B
with Strato Pi board in a standard 4 modules DIN rail case
✓side access to HDMI and 3.5mm jack for audio and composite video
✓access to all USB ports and Ethernet port (opposite to the power and serial terminal
block).
8
Strato Pi Base User Guide
Usage and connections
STRATO PI BASE CONNECTION DIAGRAM
Device identification
The device can be identified with the information provided in the rating and identification
plate, permanently attached to the side of the case.
EXAMPLE RATING AND IDENTIFICATION PLATE
9
Strato Pi Base User Guide
Questo manuale è adatto per i seguenti modelli
5
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