This manual describes the SL SL004B active isolated converter, detailing its technical specifications, installation instructions, and precautions for use in…
The document provides a user guide for the SL SL004B Active Isolated RS-232 to Dual RS-485 Converter. It explains the benefits of the RS-485 bus standard, including long-distance data transmission and high noise immunity suitable for multi-device networks.
Key features include wide-range power input with reverse polarity protection, industrial-grade chips capable of driving up to 64 devices, and built-isolation modules using optocouplers to prevent ground loops. The guide covers installation steps, wiring diagrams for the RS-232 and dual RS-485 ports, LED indicator meanings, and specific precautions regarding power supply and grounding. This manual is written in Chinese.
| Power Supply | External power supply, DC 9-15V |
|---|---|
| Current Consumption | 40mA (static) |
| Communication Mode | Half-duplex |
| Communication Rate | 0~115200bps |
| Load Capacity | Up to 64 devices |
| Communication Distance | Not less than 1200 meters |
The module requires an external DC power supply between 9V and 15V.
The module supports a maximum of 64 devices on the bus.