Sferalabs Strato Pi Base Manuel utilisateur

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

Installation and use restrictions 31

Standards and regulations 31

Safety instructions 31

Set-up 31

Conformity Information 32

EU 32

USA 32

CANADA 33

RCM AUSTRALIA / NEW ZEALAND 33

Compliance information for Raspberry Pi 33

EU 33

USA 33

CANADA 33

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.

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

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

NOTICE

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

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

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).

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

Strato Pi Base User Guide

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