Template: RPi Zero Relay Spec

Overview

Industrial 6-Channel Relay Module For Raspberry Pi Zero, RS485/CAN Bus, Power Supply Isolation, Photocoupler Isolation

Features

• RS485 half-duplex communication: using SP3485, UART control, auto RX/TX switch
• CAN half-duplex communication: using MCP2515 + SN65HVD230 solution, SPI control
• Onboard unibody power supply isolation, provides stable isolated voltage, needs no extra power supply for the isolated terminal
• Onboard photocoupler isolation, prevent interference from external high-voltage circuit connected to the relay
• Onboard TVS (Transient Voltage Suppressor), effectively suppress surge voltage and transient spike voltage in the circuit, lightningproof & anti-electrostatic
• Onboard resettable fuses and protection diodes, ensuring current/voltage stable output, preventing over current/voltage, better shock-resistance performance
• High quality relay, contact rating: ≤10A 250V AC or ≤10A 30V DC
• ABS protection enclosure with rail-mount support, easy to install, safe to use

Specifications

• Operating voltage: 7V~36V (industrial input voltage compatible)
• Relay channel: 6ch
• Communication Protocol: RS485,CAN
• Contact form: 1NO 1NC

Pinouts

• CAN bus

PIN	Raspberry Pi (BCM)	Description
GND	GND	Ground
SCK	SCK	SPI clock input
MOSI	MOSI	SPI data input
MISO	MISP	SPI Data output
CS	CE0	Data/Command Selection
INT	25	Interrupt output

• RS485 bus

PIN	Raspberry Pi (BCM)	Description
GND	GND	Ground
RXD	RXD	UART receive
TXD	TXD	UART transimit

• Relay interfaces

PIN	Raspberry Pi (BCM)	Description	GND!	GND	Ground
IN_CH1	GPIO5	Relay Channel 1
IN_CH2	GPIO6	Relay Channel 2
IN_CH3	GPIO13	Relay Channel 3
IN_CH4	GPIO16	Relay Channel 4
IN_CH5	GPIO19	Relay Channel 5
IN_CH6	GPIO20	Relay Channel 6