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Home / Development Boards & Control Boards / 16-Channel RS232/485 Serial Relay Module for Digital Input/Output and IO Control
Development Boards & Control Boards

Attributes

Brand -
Category Electronic Components / Maker DIY / Development Boards & Control Boards
Origin -
Interface Type RS232 / RS485
Relay Channels 16 Channels
Digital Inputs 16 Channels (Dry Contact)
Digital Outputs 16 Channels (Open Collector)
Power Supply 12V DC - 24V DC
Max Load per Relay 10A @ 250VAC
Baud Rate 1200 - 115200 bps
Operating Temperature -20°C to 70°C
Dimensions 180mm x 100mm x 40mm
Protection Opto-Isolated Communication

5 reviews

A

Anonymous

Apr 10, 2026

Rating: 5/5

Excellent Industrial Module

Works perfectly with our SCADA system. Very stable connection over RS485.

A

Anonymous

Apr 09, 2026

Rating: 4/5

Good value

Terminal blocks are a bit tight but functionality is great for the price.

A

Anonymous

Mar 16, 2026

Rating: 5/5

Reliable for automation

Using it for lighting control in a warehouse. No failures so far after 3 months.

A

Anonymous

Mar 11, 2026

Rating: 4/5

Solid hardware

Wish the manual had more wiring diagrams, but the unit itself is robust.

A

Anonymous

Jan 22, 2026

Rating: 5/5

Easy integration

Modbus commands are straightforward to implement with our PLC.

5 FAQ

Q: Is DIN rail mounting included?

A: Yes, the housing is designed for standard DIN rail mounting.

Q: Can I mix RS232 and RS485?

A: You must select the communication mode via jumper settings before use.

Q: Can this handle inductive loads?

A: Yes, but we recommend using snubber circuits for heavy inductive loads.

Q: What is the warranty period?

A: This product comes with a standard 1-year manufacturer warranty.

Q: Is there Linux driver support?

A: It communicates via standard serial ports, so generic drivers work on Linux.

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