Products Categories

China SM701-A (B) 3-Channel RS485 Converter - Reliable Multi-Channel Distributor from Trusted Suppliers & Factory

The SM701-A (B) Intelligent Multiplexer is a cutting-edge product developed in China, utilizing an ARM microprocessor and a specialized chip. It combines extensive practical experience to meet the rigorous demands of industrial applications. This multiplexer is renowned for its high reliability and stability, making it an ideal choice for manufacturing environments, Equipped with two standard RS485 interfaces, the SM701-A (B) is specially designed for industrial integration. The product features a robust design that addresses temperature variations, vibrations, electromagnetic compatibility, and diverse interfaces, ensuring consistent performance even in harsh conditions. By choosing the SM701-A (B) Intelligent Multiplexer from our factory, you’re guaranteed quality assurance that enhances the performance of your equipment. Trust in China’s leading suppliers for your industrial needs with this reliable solution

Product Details

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

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

Frequently Asked Questions

What interface conversion options does this device support?

The device can convert one RS485 or RS232 interface into two RS485 interfaces, enabling communication with computers or servers.

Does the device support MODBUS protocol transmission?

Yes, it supports both standard and non-standard MODBUS_RTU protocol transmission.

Do I need to reset the parameters after a power outage?

No, the device has a power-off memory function, so parameters do not need to be reset after power off.

What are the power supply requirements for this device?

It requires an input voltage of DC 12 ~ 24V. The power supply ripple must not exceed 200 mA, and the power supply must provide 100mA.

What are the physical dimensions and shell size of the product?

The core physical dimensions are 71mm × 52 mm × 22 mm, while the overall shell size measures 96 mm (L) × 80 mm (W) × 25 mm (H).

What is the operating temperature range for this device?

The device operates reliably in ambient temperatures ranging from -20 ℃ to +80 ℃.