E810-R Series Product Introduction

The E810-R11/E810-R11M/E810-R12/E810-R12M/E810-R14/E810-R18 are isolated RS-485 repeaters (HUBs) developed by Chengdu EBYTE Electronics. They convert 1-channel RS-485 to 1/2/4/8-channel RS-485, enabling communication between 1 RS-485 master device and 1 or multiple RS-485 slave devices.

Equipped with optoelectronic isolation technology, the modules protect master and slave devices from interference. The circuit meets EMC Level 3 standards, featuring:

  • 1.5KV isolation voltage

  • ESD protection: 4KV contact discharge, 8KV air discharge

  • Surge protection: 1KV differential mode, 2KV common mode
    These protections effectively isolate lightning, static electricity, and surge damage. The modules require no configuration and support transparent data transmission between master and slave interfaces.

Key Features

  • Power Supply: DC 8-28V wide voltage input with overcurrent and reverse polarity protection.

  • Communication: Supports 1 RS-485 master device and multiple slave devices.

  • Plug-and-Play: No configuration required; easy to use out of the box.

  • Data Transmission: Master data broadcast to all slave interfaces; slave data sent to master interface in time-division mode.

  • Isolation: Full isolation of communication and power between master and slave interfaces.

  • Performance: High anti-interference and high-speed isolation components, with baud rate up to 230400bps.

  • Node Capacity: Each slave interface supports up to 32 nodes.

Applications

Suitable for RS-485 communication systems such as:

  • Automation control systems

  • Monitoring and alarm systems

  • Access control and IC card payment systems

  • Meter reading and campus card systems

  • Parking lot management systems