RS422 module for Arduino, MAX490

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RS422 using a MAX490 transceivers for long distance communication up to 1km. It can be easily implemented in your Arduino projects through the SPI serial port.

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Availability: In stock

Regular Price: €12.08

Special Price Excl. Tax: €8.68 Incl. Tax: €10.59

Product Description


The protocol of the RS422 data transmission is known for the possibility of long-distance data transmission at very high reliability. It is widely used in modern machine tools, weather stations, for monitoring and the data communication over long distances. With this interface you can now operate the transmission protocol with Arduino; uses very few connections Arduino leaving you free to handle the remaining I/O ports for other expansions.

Technical specifications:
Communication speed up to 2.5Mbps
2-3 wires connection
Protocol Compatibility: RS422, RS485
TXD and RXD are compatible with 5V TTL logic signals
ESD protection for electromagnetic interference up to 15KV
Termination resistor: 120Ω

Connection mode:
1. GND
2. RXD
3. TXD
4. VCC
Connection Strip pitch: 2.54 mm

1. GND
2. A
3. B
4. Y
5. Z
Connection Strip pitch: 5 mm

Dimensions: 40 x 30 x 0.5 mm

Additional Information

Additional Information

SKU 01A107
Input Signal TTL
Output signal RS485


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