【Overview】

[] Industrial Isolated Interface Expansion Board

[] Suitable for Raspberry Pi 4B / 5, expands 2x RS485 + 1x RS232 + 1x CAN FD + 1x CAN

【Features At A Glance】
The RS232 RS485 CAN Board is an industrial isolated interface expansion board designed for Raspberry Pi 4B / Raspberry Pi 5, provides a variety of industrial communication interfaces: 2x RS485, 1x RS232, 1x CAN FD, and 1x CAN, each with electrical isolation. Onboard lightningproof, anti-electrostatic protection, etc. for more secure and reliable communication.

Comes with industrial rail-mount enclosure for easy integration in industrial control applications. Provides sufficient internal space for users to stack other HATs or expansion boards, and reserved installation space of PCIe adapter board for Raspberry Pi 5, which is more convenient for further expansion.

[] Based on Raspberry Pi 40PIN GPIO header, suitable for Raspberry Pi 4B and Raspberry Pi 5

[] Adopts SC16IS752 and SP485 combination scheme, expands SPI to 2x RS485 interface

[] Adopts MCP2515 and SN65HVD230 combination scheme, expands SPI to 1x CAN interface

[] Adopts MCP2518FD and MCP2562FD combination scheme, expands SPI to 1x CAN FD interface

[] Adopts Raspberry UART and SP3232EEN combination scheme, expands UART to 1x RS232 interface

[] Onboard TVS (Transient Voltage Suppressor), effectively suppress surge voltage and transient spike voltage in the circuit, lightningproof & ESD protection

[] Onboard self-recovery fuse and protection diodes, ensures the current/voltage stable outputs, provides over-current/over-voltage proof, improves shock proof performance

[] Onboard unibody power supply isolation, needs no extra power supply for the isolated terminal, provides stable current/voltage outputs of RS232, RS485, CAN, and CAN FD interfaces, and improves the anti-interference and anti-shock performance

[] Onboard digital isolation chip for safer signal isolation communication and better stability and anti-interference performance

[] Onboard external power supply screw terminal for 7~36V wide voltage power input, combines with Pi5 Connector Adapter (B) to power the Raspberry Pi and the expansion board at the same time

[] Onboard 120Ω terminal resistor, configured by jumper

[] Reserved interrupt resistor pad for flexible switching the interrupt pin if there is pin conflict when working with other HATs

[] Comes with online development resources and manual (examples for Raspberry Pi Python/C)

【Specifications】

PRODUCT TYPE	Industrial isolated interface expansion board for Raspberry Pi
APPLICABLE BOARD	Raspberry Pi 4B, Raspberry Pi 5
COMMUNICATION INTERFACE	SPI + UART
EXTENDED INDUSTRIAL INTERFACES	INTERFACE	CHIP SCHEME	BAUDRATE
	1-ch isolated CAN FD	MCP2518FD + MCP2562FD	5kbps ~ 8 Mbps
	1-ch isolated CAN	MCP2515 + SN65HVD230	5kbps ~ 1 Mbps
	2-ch isolated RS485	SC16IS752 + SP485	300 bps ~ 921600 bps
	1-ch isolated RS232	SP3232EEN
EXPANDABILITY	Supports extending functions such as NVME, ETH, USB, 4G/5G for Raspberry Pi 5 through PCIe interface
	Supports stacking with other HATs through 40PIN GPIO header for Raspberry Pi 4B/5 (make sure there are no pin conflicts and the dimension is compatible)
POWER SUPPLY METHODS (CHOOSE ONE OF TWO)	5V Type-C power port of Pi5 Connector Adapter (B)
	External screw terminal for DC 7-36V wide voltage input
DIMENSIONS	L × W × H: 154.6 × 83.7 × 59 mm
ENCLOSURE	Eco-friendly plastic case, supports wall-mount & rail-mount installation

【Suitable For Raspberry Pi 4B/5】
[] Based On Raspberry Pi 40PIN GPIO Header

* for reference only, the Raspberry Pi 5 and PCIe board are not included.

【Supports Two Power Supply Methods】
[] Onboard Type-C 5V Port And DC 7~36V Wide Voltage Screw Terminal, Can Be Powered Directly From A Raspberry Pi Power Supply, Or Used In Industrial Wide-Voltage Power Supply Scenarios

【Expands Multiple Isolated Industrial Interfaces】
[] Supports Connecting With Multiple Peripherals Via CAN, RS485, And RS232 Interfaces

【Large Internal Space, Strong Expansibility】
[] Provides Enough Internal Space Of The Case For Users To Connect Other Modules And Expand More Functions

[] Extending NVME, ETH, USB, and 4G/5G, etc. for Pi 5 through PCIe or 40PIN GPIO

[] PCIe Adapter Board Compatible

                      M.2                                                ETH                                          USB-HUB        

[] Supports stacking with some HATs* through 40PIN GPIO header for Pi 4B/5

* Note: make sure there are no pin conflicts and the dimension is compatible

* for reference only, please refer to the Package Content for detailed part list

【Assembly Instruction】

* for reference only, please refer to the Package Content for detailed part list

【Enclosure Design】
[] ABS Eco-Friendly Plastic Case, Supports Wall-Mount & Rail-Mount, Making Industrial Installation More Flexible

【Interface Introduction】

【Outline Dimensions】