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Range of  our Internet-Of-Things – IOT Devices:

RS-485 to Ethernet  Converter:

RS-485 to Ethernet Converter ERS-485


Ambetronics is leading manufacturer of RS-485 to Ethernet Converter. ERS-485 devices are ideal for applications and devices that require an efficient way of communicating with serial RS-485 devices over an Ethernet network.

The ERS-485 is an economical Modbus-to-Ethernet converter that can quickly and easily be added to any device with a RS-485 serial port, making that device Web-enabled. It is a single port serial server, that converts a serial port to an Ethernet Port, thus removing cable length limitations, and allowing for “serial tunneling” of a device through an Ethernet or TCP/IP.

Converting Data from RS-485 to Ethernet:

RS-485 data sent and received on serial ports on the ERS-485 converter are encapsulated in Ethernet packets in a manner that best fits the type of data being transported.
AEPL’s ERS-485 converter (commonly referred to as Terminal Servers or Device Servers) connect RS-485 based equipment across an Ethernet network enabling you to do following things such as:

  • Cable replacement using RS-485 to Ethernet
  • Have virtual COM ports connect PC/servers to remote RS-485 devices over Ethernet
  • Communicate to multiple RS-485 devices at the same time across a network
  • Use ERS-485 Converter to connect Serial PLCs to Ethernet
  • Connect serial equipment over Ethernet with ERS-485 Converter
  • Modbus RTU to Modbus over TCP/IP or Modbus TCP/IP


  • LED Indication
  • Low Cost
  • 10/100Mbps Ethernet
  • TCP/UDP/Telnet Modes
  • DHCP/Static IP Modes
  • Web Based Configuration
  • Low Power

Technical Specifications:

Protocols: Support TCP, UDP, DHCP ,HT TP Server-

Client, TELNET, Modbus TCP

Speed: 10/100Mbps

Working: Half Duplex

Configuration: In-built HT TP Web Server

Working mode: Support Server and Client

Transmission: 100 meter

Connector: RJ45

Serial interface:

  • Parity bit : None, Even, Odd, Space, Mark
  • Data bit : 5bit, 6bit, 7bit, 8bit
  • Baud rate : 600bps to 460800 bps
  • Flow control : RTS/CTS or XON/XOFF or No flow control
  • Interface protection : 2KV static protection
  • Interface type : RS-485 (D+, D-, SH)

Power Supply:

  • Power input : 5VDC, 1A
  • Consumption : ~1.5W
  • 1 DC jack for power connections


  • Working temperature : -20°C to 55°C
  • Storage temperature : -20°C to 60°C
  • Relative humidity : 5% to 95% RH, Non-condensing


  • Compact Size : 78 mm (L) x 41mm (W) x 24mm (H)
  • Material : ABS Plastic
  • Weight : ~ 100g

Applications of RS-485 To Ethernet Converter:

  • Fire and Security Panels.
  • Remote equipment management.
  • Access Control.
  • Industrial Control.
  • Home Automation.

Major Industries We Serve...