UT-820E is a universal USB/RS-485/RS-422 converter that integrates optical isolators and power isolation modules. It supports bidirectional data conversion between RS-485/RS-422 and USB. The maximum communication speed can reach 128000bps. It has power indicator and data flow indicator lights and supports full duplex and half duplex communication modes.
The UT-820E is a universal USB to RS-485/RS-422 converter with built‑in optical isolation, offering up to 2500 Vrms isolation voltage and 1500 W surge protection. It supports point‑to‑point and multi‑point communication, full‑duplex (RS‑422) and half‑duplex (RS‑485) modes, and provides LED indicators for power, transmit and receive signals.
This manual covers the hardware installation, connector pin assignments, supported communication configurations, performance parameters, and a troubleshooting guide. It also lists the physical dimensions, operating temperature range, and compatible operating systems such as Windows and Linux. This manual is written in Chinese.
| Isolation Voltage | 2500 Vrms |
|---|---|
| Surge Protection Power | 1500 W |
| Supported Data Rate | 300‑128000 bps |
| Maximum Multi‑point Nodes | 128 devices |
| USB Signal Pins | VCC, DATA+, DATA-, GND, FG |
| Dimensions | 96 mm × 64 mm × 26 mm |
| Operating Temperature | -25 °C to 70 °C |
| Cable Length (9600 bps) | 5000 m |
It supports point‑to‑point and multi‑point connections, half‑duplex (RS‑485) and full‑duplex (RS‑422) modes.
Up to 128 devices can be connected in a multi‑point configuration.