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Home / Development Boards & Control Boards / Serial 485 Digital Input Acquisition Network Relay Board Remote IO Control Module Input/Output for Pumps, Lights, Motors
Development Boards & Control Boards

Attributes

Brand -
Category Electronic Components / Maker DIY / Development Boards & Control Boards
Origin -
Communication Protocol Modbus RTU
Interface Type RS-485 Half-Duplex
Relay Output 8 Channels SPDT
Digital Input 8 Channels Opto-isolated
Power Supply 12V to 24V DC
Max Contact Load 10A 250VAC / 10A 30VDC
Baud Rate 9600, 19200, 38400, 115200 bps
Device Address 1 to 247
Operating Temperature -20°C to 70°C
PCB Material FR-4 Flame Retardant

5 reviews

A

Anonymous

Apr 14, 2026

Rating: 4/5

Solid Module

Hardware is robust. Instructions were a bit vague regarding wiring but support helped me out.

A

Anonymous

Apr 07, 2026

Rating: 5/5

Great for Industrial IO

Works perfectly with my SCADA system. The Modbus registers are well documented and easy to map.

A

Anonymous

Mar 23, 2026

Rating: 4/5

Good Value

Terminals are sturdy and accept thick gauge wire. Wish it had a USB config option but RS-485 works fine.

A

Anonymous

Mar 20, 2026

Rating: 5/5

Easy Modbus Integration

Configured quickly with a Python script. Response time is fast enough for our automation needs.

A

Anonymous

Mar 14, 2026

Rating: 5/5

Reliable Relay Board

Using it for lighting control in a warehouse. No dropout issues over the last three months.

5 FAQ

Q: Can this control 3-phase motors directly?

A: It should be used to control contactors for 3-phase motors, not direct motor wiring.

Q: Does the package include terminal screws?

A: Yes, all necessary terminal screws are included in the box.

Q: What cable type is recommended for RS-485?

A: We recommend using shielded twisted pair cable for stable communication.

Q: Can I read the input status remotely?

A: Yes, you can read the input status via Modbus register read commands.

Q: Is optical isolation provided on the inputs?

A: Yes, all 8 digital input channels are opto-isolated to protect the main circuit.

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