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RevPi Connect S

SKU #: KU-PR100362, KU-PR100363, KU-PR100364

The new RevPi S and SE series are based on the brand-new Raspberry Pi Compute Module 4S. The series are an intermediate step between the RevPi Connect+ series and the RevPi Connect 4 series. (See table below for important differences.)

The RevPi Connect S from KUNBUS is an open source Industrial IoT (IIoT) gateway and is the updated version of the RevPi Connect+. RevPi Connect S is based on the Raspberry Pi Compute Module 4S, and features a 1.5 GHz quad-core processor, 1 GB RAM and 8 GB or 32 GB eMMC flash memory. The operating system is a customized Raspbian version with a real time patch. Common IIoT protocols such as OPC UA and MQTT are fully supported allowing the transfer of data directly to the cloud.

Individual applications may be programmed using Node-RED, Python, or C programming. The modular design allows the 45mm base device to be fitted with expansion modules such as digital and analog I/Os, fieldbus gateways and radio modules including Bluetooth. The expansion modules may be connected with the base device via a socket located at the top, and is easily configured with an intuitive GUI.

Learn more about the difference between the S and SE series.

Review the UL Certificate.

Graphic illustrating the differences between the Raspberry Pi Compute Modules

  • Freely programmable
  • Modular and expandable design
  • Two Ethernet ports
  • RS485 screw terminal
  • Hardware watchdog
  • Supports all major industrial network protocols
  • Node-RED
  • Python
Housing dimensions (HxWxD) 96 x 45 x 110.5 mm
Housing type DIN rail housing (for DIN rail version EN 50022)
Housing material Polycarbonate
Weight approx. 197 g / 224 g (incl. connectors)
IP Code IP20
Power supply 12-24 V DC -15 % / +20 %, reverse polarity protected
Max. power consumption 20 Watt (incl. 1 A total USB output current)
The average power consumption without USB load varies greatly and depends on the use of the interfaces, the GPU and the CPU. It is usually well below 4 watts without HDMI
Operating temperature -25 °C to +55 °C
Storage temperature -40 °C to +85 °C
Humidity (40 °C) up to 93 % (non-condensing)
Interfaces 2 x USB A (Total current draw from both sockets max. 1 A)
2 x RJ45 10/100 Ethernet (using separate MAC addresses)
1 x RS485 screw-type terminal (not galvanically isolated)
1 x Micro-USB (solely for image transfer to eMMC)
1 x Micro HDMI HDMI 2.0a (4K)
1 x PiBridge system bus
1 x ConBridge system bus
Connectors 1 x 4-pole screw-type terminal for relay contact and signal input
1 x 4-pole screw-type terminal for power supply
Processor Broadcom BCM2711, quad-core Arm Cortex-A72
Clock rate 1.5 GHz
Processor cooling Passive with heat sink
Flash memory 8 GB (Article No.: 100362) / 16 GB (Article No.: 100363) / 32 GB (Article No.: 100364)
Number of digital input channels 1
Input Type 24 V control voltage (e.g. for power-good signal of a UPS)
Input Threshold approx. 3.0 V (0 -> 1) / 2.3 V (1 -> 0)
Input protection against overvoltage, negative voltages
Number of digital output channels 1
Output type Relay contact, approval up to 30 V switching voltage (e.g. for power supply of a router)
Maximum current load of the contact 2 A @ 30V DC (resistive load!)
Software integration of input and output Via GPIOs and process image. Output is optionally switched by hardware watch-dog.
Hardware watchdog functionality Can be disabled by bridging the 4-pole screw-type terminal. Reset by toggling a GPIO or alternatively a bit in the process image.
Hardware watchdog intervall Trigger after approx. 60 seconds without toggling the reset bit.
Compatible modules for system expansion All RevPi IO modules and RevPi Gateway modules can be connected via the
PiBridge system bus.
All RevPi Con modules can be connected via the ConBridge system bus.
ESD protection 4 kV / 8 kV (according to EN61131-2 and IEC 61000-6-2)
EMI tests Passed (according to EN61131-2 and IEC 61000-6-2)
Surge/Burst tests Passed (according to EN61131-2 and IEC 61000-6-2)
Buffer time RTC min. 24 h
Optical indicator 6 status LEDs (bi-color), two of them freely programmable
RoHS conformity Yes
CE conformity Yes
UL certification Yes, UL-File-No. E494534
Note: The device may only be supplied from circuits that comply with Class 2 or
Safety Extra Low Voltage (SELV) according to Class 9.4 of UL 61010-1
Quickstart Guide
RevPi Connect+ Quick-start Guide
Technical Data Sheet
RevPi Connect+ Technical Data Sheet
Release Notes
Release Notes for Buster
RevPi Images
Image files for installing RevPi Buster 
The new RevPi S and SE series are based on the brand-new Raspberry Pi Compute Module 4S. The series are an intermediate step between the RevPi Connect+ series and the RevPi Connect 4 series. (See t...
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