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China ODM Suppliers RS485 to 3-Channel 485 Output Multi-Channel Converter MODBUS Distributor SM701-A (B) Factory

The SM701-A (B) Intelligent Multiplexer is an advanced product developed in China utilizing ARM microprocessor technology and specialized chips, backed by extensive practical experience. Designed specifically for industrial applications, this multiplexer boasts high reliability and stability, making it an ideal choice for various operational needs. Equipped with two standard RS485 interfaces, the SM701-A (B) is perfect for seamless data communication, As a trusted supplier of industrial integration solutions, we have ensured that the SM701-A (B) intelligent multiplexer meets rigorous standards for temperature range, vibration resistance, electromagnetic compatibility, and interface diversity. This thoughtful design guarantees stable operation even in harsh environments, providing high-quality assurance for your equipment. Choose our factory to benefit from cutting-edge technology and dependable performance in your industrial applications

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

How many interfaces can this device convert?

This device can convert one RS485 or RS232 interface into two RS485 interfaces.

Does the device support the MODBUS protocol?

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

What are the power supply input requirements for this product?

The input voltage should be DC 12 ~ 24V, with a power supply ripple not exceeding 200 mA, and it must provide 100mA.

Do I need to reset the communication parameters after a power failure?

No, the device features a power-off memory function, which saves your configurations so parameters do not need to be reset after power off.

What is the working temperature range for this device?

The device is designed to operate reliably in an ambient temperature range of -20 ℃ to +80 ℃.

Can the communication parameters like baud rate be adjusted?

Yes, the baud rate, check bit, stop bit, and other communication parameters can be adjusted based on the actual access requirements of your RS485 or RS232 instrument.