Wholesale RS485 to 3-channel 485 output multi-channel converter, MODBUS 1-in-3-out distributor SM701-A (B) Suppliers, Factory

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Wholesale RS485 to 3-channel 485 output multi-channel converter, MODBUS 1-in-3-out distributor SM701-A (B) Suppliers, Factory

SM701-A (B) intelligent multiplexer is A product developed by using ARM microprocessor, special chip and combining with A lot of practical experience. It is designed according to the requirements of industrial products and has the characteristics of high reliability and stability. The smart converter is equipped with 2 standard RS485 interfaces.
Because SM701-A (B) intelligent multiplexer is specially designed for industrial integration, it adopts special design in terms of temperature range, vibration, electromagnetic compatibility and interface diversity to ensure stable operation in harsh environment and provide high quality assurance for your equipment.

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Product Description

📋 Product Specifications

One RS485 or RS232 interface can be converted into two RS485 interfaces.
Support standard and non-standard MODBUS _ RTU protocol transmission.
Equipped with standard RS485 or RS232 interface, it can communicate with computer or server.
Support multiple collectors or PCs.
Baud rate, check bit, stop bit and other communication parameters can be set according to the actual access of RS485 or RS232 instrument.
With power-off memory function, parameters do not need to be reset after power off.

⚙️ Product Features

Shell size: length 96 mm × width 80 mm × height 25 mm.
Working temperature: -20 ℃ ~ + 80 ℃.
Relative humidity: 10% ~ 80%.
Power supply input voltage: DC 12 ~ 24V, the ripple of the power supply shall not be greater than 200 mA, and the power supply shall provide 100mA.

📊 Main Parameters

Parameter	Value
Physical Dimensions（L × W × H）	71mm × 52 mm × 22 mm.
Operation Ambient Temperature	-20℃～+80℃
Relative Humidity	10% ～ 80%

📥 Download

SM701-A(B).zip

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SM701-A(B) (2025_04_02)-User_Manual.pdf

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🔌 Communication Applications

The SM701-A(B) multichannel converter is used for communication with 485 instruments.

🛠️ Post-Sale Service

All products come with a three-year warranty. If you encounter any problems during use, please contact us.

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❓ FAQ

Does the module support the one slave and three masters mode?

Yes, the one slave and three masters mode is fully supported.

Is the data communication of SM701-A(B) in polling mode or sent automatically?

The module automatically sends data and operates in response mode with the instrument.

Are you a factory or trading company?

We are a high-tech enterprise factory integrating R&D, production and sales. We have a complete ERP system and equipment, which can meet your procurement needs.

What is the delivery time?

Goods will be dispatched within three working days after receiving the payment.

What is the Minimum Order Quantity (MOQ)?

Under normal circumstances, we support a minimum order of one piece.

Is OEM service available?

Yes, product could print your logo, or customized by your design.

Product Detail