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Strato Pi UPS User Guide
April 2022
Revision 028
SPBU30X Strato Pi UPS board
SPMU30X Strato Pi UPS server with Raspberry Pi 3 Model B
SPMU30XP Strato Pi UPS server with Raspberry Pi 3 Model B+
SPMU30X41 Strato Pi UPS server with Raspberry Pi 4 Model B 1GB
SPMU30X42 Strato Pi UPS server with Raspberry Pi 4 Model B 2GB
SPMU30X44 Strato Pi UPS server with Raspberry Pi 4 Model B 4GB
SPMU30X48 Strato Pi UPS server with Raspberry Pi 4 Model B 8GB
Note: part numbers with T instead of X do not have the ATECC608 secure element
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Table of Contents
Related Manuals for STRATO SPBU30X
Summary of Contents for STRATO SPBU30X
- Page 1 SPMU30X Strato Pi UPS server with Raspberry Pi 3 Model B SPMU30XP Strato Pi UPS server with Raspberry Pi 3 Model B+ SPMU30X41 Strato Pi UPS server with Raspberry Pi 4 Model B 1GB SPMU30X42 Strato Pi UPS server with Raspberry Pi 4 Model B 2GB...
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Page 2: Table Of Contents
Testing the Real Time Clock Configuring the serial port Using Strato Pi UPS Real Time Clock Secure element Serial port Buzzer Hardware watchdog Power cycle Advanced configuration Thermal considerations for Strato Pi UPS server Block diagram Strato Pi UPS User Guide... - Page 3 Technical specifications Dimensions Disposal Installation and use restrictions Standards and regulations Safety instructions Set-up Conformity Information CANADA RCM AUSTRALIA / NEW ZEALAND Compliance information for Raspberry Pi CANADA Strato Pi UPS User Guide...
- Page 4 Customer acknowledges and agrees that any such use of Strato Pi UPS 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.
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Page 5: Safety Information
Indicates a hazardous situation which, if not avoided, may result in death or serious personal injury. CAUTION Indicates a hazardous situation which, if not avoided, can result in minor or moderate personal injury. NOTICE Indicates a situation which, if not avoided, can result in damage of property. Strato Pi UPS User Guide... -
Page 6: Safety Instructions
Battery and external rechargeable battery This product uses a small lithium non-rechargeable battery to power its internal real time clock (RTC). It also optionally uses an external rechargeable lead-acid battery for the uninterruptible power supply. Strato Pi UPS User Guide... - Page 7 Only use a lead-acid battery with electrical ratings recommended in the technical specifications for this product. Follow the battery manufacturer's instructions when installing the external UPS battery (not provided). Dispose of used batteries according to local regulations and the battery manufacturer's instructions. Strato Pi UPS User Guide...
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Page 8: Introduction
Introduction Strato Pi UPS enhances the Raspberry Pi Model B version 2, 3 and 4 with several hardware features to make it suitable for use in professional applications where reliability and service continuity are key requirements. Strato Pi UPS 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. -
Page 9: Features
✓ integrated uninterruptible power supply, with external lead-acid 12V battery ✓ 2.2A resettable fuse on battery input ✓ auxiliary power supply output voltage, to power external devices through Strato Pi UPS ✓ simple UPS status and control via the GPIO pins of the Raspberry Pi board ✓... -
Page 10: Usage And Connections
Usage and connections STRATO PI UPS 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 UPS User Guide... -
Page 11: Hardware Installation
UPS. Strato Pi UPS server The Strato Pi UPS server comes pre-assembled with a Raspberry Pi 3 Model B or B+ or Raspberry Pi 4 Model B board, in a plastic standard DIN-rail case. There is no need to open the case, unless a change in the RS-485 termination resistors is required (see below). -
Page 12: Replacing The Rtc Backup Battery
The battery is only used to power the RTC chip when the main or UPS battery power is not available (when the Raspberry Pi is off). Depending on operating conditions it should last up to two years if the Strato Pi board is not powered, more if the Strato Pi UPS receives external power. - Page 13 5. Insert the new battery with a gentle push. Respect the battery polarity 6. Replace the case bottom applying a gentle pressure on the corners 7. Replace the black plastic DIN rail hook 8. Insert the microSD card. RTC BACKUP BATTERY Strato Pi UPS User Guide...
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Page 14: Terminal Block
OPENING THE CASE OF RASPBERRY PI 4 MODEL B MODELS Terminal block Strato Pi UPS has a 10 positions terminal block for power, battery, auxiliary power supply output and serial connections. The maximum conductor cross section is 1.5 mm (16 AWG), or 0.5 mm when using ferrules (highly recommended). -
Page 15: Power Supply
When a Strato Pi UPS board is used, never connect the Raspberry Pi micro-USB power plug. The Strato Pi UPS power supply stage is optimised to deliver up to 4A at 5V to the Raspberry Pi. Because Strato Pi has a 2.2A resettable fuse (polyfuse) on the power supply line, the maximum current that its regulator can deliver is also limited by this fuse, and depends on the input voltage. -
Page 16: Auxiliary Power Supply Output
A 2.2A resettable fuse is also used to protect the battery input. When Strato Pi UPS works under battery power, the maximum 5V current delivered to the Raspberry Pi should not exceed 3.5A when the battery is fully charged. Auxiliary power supply output Strato Pi UPS has an auxiliary power supply output pin, labeled VSOUT, to power external devices. -
Page 17: Software Installation And Configuration
All commands should be run as superuser, so always use sudo to run strato. Installing the Strato Pi kernel module The Strato Pi kernel module can be used to easily access Strato Pi's features via sysfs file system. Refer to the following instructions to download and install the module or go to: https://github.com/sfera-labs/strato-pi-kernel-module... -
Page 18: Installing The Real Time Clock Software
$ sudo usermod -a -G stratopi pi Reboot: $ sudo reboot You will find the directory /sys/class/stratopi/ which gives you access to Strato Pi's functionalities. Installing the Real Time Clock software The RTC is based on the Microchip MCP79410 module and is connected to the Raspberry Pi via its I C serial bus. -
Page 19: Configuring The Serial Port
TX/RX pins on the GPIO connector are controlled by a limited function Mini UART (ttyS0). To route the main UART to the RX/TX pins that are connected to the Strato Pi serial ports you could disable Bluetooth. Edit /boot/config.txt and add these lines at the end of the file:... - Page 20 If you are using Strato Pi’s serial ports for your applications, you also need to disable the Linux serial console, otherwise it will send console data to the serial port. Disable the ttyAMA0 console service: sudo systemctl disable serial-getty@ttyAMA0.service Edit the /boot/cmdline.txt file and delete the serial console configuration:...
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Page 21: Using Strato Pi Ups
✓ Guaranteed unique 72-bit serial number. Serial port Strato Pi UPS uses the Raspberry Pi standard UART TX/RX pins on the GPIO connector to implement a standard serial port with support for both RS-232 and RS-485. Strato Pi UPS User Guide... - Page 22 Simply connect the RS-232 RX, TX and GND lines to the RS-232 posts of the Strato Pi terminal block or the RS-485 A, B and GND to the RS-485 posts of the terminal block. Never connect both RS-232 and RS-485 lines to Strato Pi. Strato implements a single serial port, not two.
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Page 23: Buzzer
Strato Pi board. See "Advanced configuration" below for alternative configurations. To print “1” if Strato Pi is operating from the battery, or “0” if main power is present: $ sudo strato battery; echo $? -
Page 24: Power Cycle
Power cycle You can start a delayed power cycle by rising Raspberry Pi’s GPIO16 pin. When GPIO16 is set to high, Strato Pi UPS will wait 60 seconds and then power off the Pi board for 5 seconds. The power cycle doesn't affect the VSOUT auxiliary power supply output. -
Page 25: Thermal Considerations For Strato Pi Ups Server
CPU and the other nearby components on the Raspberry Pi board. The CPU will run cooler than without Strato Pi Fan, and it will take longer and higher loads to reach its throttling limits. - Page 26 35C AMBIENT TEMPERATURE, LOW CPU LOAD 35C AMBIENT TEMPERATURE, HIGH CPU LOAD Strato Pi UPS User Guide...
- Page 27 45C AMBIENT TEMPERATURE, LOW CPU LOAD 45C AMBIENT TEMPERATURE, HIGH CPU LOAD Strato Pi UPS User Guide...
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Page 28: Block Diagram
Block diagram STRATO PI UPS BLOCK DIAGRAM Strato Pi UPS User Guide... -
Page 29: Technical Specifications
Surge protection up to ±500V/2ohms 1.2/50μs; 600 W peak pulse power capability at 10/1000μs waveform Fail safe feature on RS-485 All tests performed with Raspbian Buster Lite and, on Raspberry Pi 4, VL805 firmware version 000137ab. Strato Pi UPS User Guide... - Page 30 -30…+70 °C Protection degree IP20 Fan noise (with SPBF10X fan option) 23.6 dBA Strato Pi UPS board: 35 g Weight Strato Pi UPS server: 155 g Strato Pi UPS server with SPBF10X option: 165 g Strato Pi UPS User Guide...
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Page 31: Dimensions
Dimensions DIMENSIONS (mm) Strato Pi UPS User Guide... -
Page 32: Disposal
Strato Pi UPS contains a small non rechargeable manganese dioxide lithium coin battery. In the Strato Pi UPS server, the battery is not accessible from the outside. You should first remove the case top body to gain access to the Strato Pi UPS circuit board. Always remove the battery before disposing of this product. -
Page 33: Conformity Information
This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) this device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation. Strato Pi UPS User Guide... -
Page 34: Canada
AC:2012 - Emission for residential, commercial and light-industrial environments. Compliance information for Raspberry Pi Strato Pi UPS model SPMU30X contains a standard Raspberry Pi 3 Model B single board computer. Strato Pi UPS model SPMU30XP contains a standard Raspberry Pi 3 Model B+ single board computer. - Page 35 (2) l'utilisateur de l'appareil doit accepter tout brouillage radioélectrique subi, même si le brouillage est susceptible d'en compromettre le fonctionnement. Strato Pi UPS User Guide...
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