User manual for the Zhuolan ZLAN5840I isolated 8‑port RS485 serial server with Modbus gateway functions.
The ZLAN5840I is an isolated 8‑port RS485 serial server and Modbus gateway developed by Zhuolan. It provides hardware isolation, surge protection, and supports both TCP/IP and Modbus TCP/RTU conversion, suitable for noisy RS485 environments and IoT applications.
The manual covers hardware description, installation, software configuration with ZLVircom, parameter settings, testing procedures, advanced Modbus features, cascading methods, and after‑sales support. It guides users through connecting power, Ethernet, and serial ports, configuring communication modes, and managing devices remotely. This manual is written in Chinese.
| RS485 ports | 8 |
|---|---|
| Ethernet ports | 2 |
| Power supply voltage | 9–24 VDC |
| Operating temperature | -45 °C to 85 °C |
| Storage temperature | -65 °C to 165 °C |
| Dimensions (L×W×H) | 27 cm × 10.5 cm × 2.6 cm |
| Baud rate range | 1200–460800 bps |
The device provides eight isolated RS485 serial ports.
It can be powered with a DC voltage between 9 V and 24 V.
Yes, by using the uplink port it can be cascaded up to 64 ports.