User manual for the Dalian Lingke DL-U485 USB/RS485 photoelectric isolation converter, covering features, connections, specs and service information.
The DL-U485 is a compact USB‑to‑RS485 converter with built‑in photoelectric isolation and surge protection. It supports USB 1.1, Windows 98/2000/XP, and provides up to 115200 bps communication over RS485 with a maximum distance of 1200 m.
The manual includes a foreword, physical description, interface details, wiring instructions, and after‑sales service information, along with a parts list and registration guidance. This manual is written in Chinese.
| Operating humidity | 30 %–80 % (non‑condensing) |
|---|---|
| Dimensions (L×W×H) | 59.5 mm × 33 mm × 16.5 mm |
| Weight | ≈35 g |
| Power consumption | Maximum 5 V / 60 mA |
| Maximum communication speed | 115200 bps |
| Maximum RS485 cable distance | 1200 m |
| Maximum number of RS485 devices | 32 devices |
The RS485 side can communicate up to 1200 meters.
Up to 32 RS485 devices can be connected.
It draws a maximum of 5 V at 60 mA from the USB bus.
The unit measures 59.5 mm × 33 mm × 16.5 mm.