Milestone Electronics

Ethernet to Serial Converters
Model: IP-2535UN / IP-2535UNDN

Ethernet to RS232 RS422 RS485 Converter

Enables RS232, RS422, and RS485 serial devices to communicate over 10/100 Base-T Ethernet networks for remote monitoring and control. Available in standard and DIN rail-mounted versions with 5000V isolation and 15KV surge protection.


Interface
1 AV
Outputs
4 AV
Video BW
90 MHz
Audio Freq.
20Hz – 20KHz
Impedance
75 Ohm
Enclosure
Metal
Interface
10/100 Base-T
Serial Support
RS232 / RS422 / RS485
Surge Protection

15KV

Product Overview

What makes the IP-2535UN

The IP-2535UN converts Ethernet (IP) signals into RS232, RS422, and RS485 serial communication, enabling serial devices to communicate across network infrastructure. It supports TX, RX, and GND signals for RS232 communication, differential signal transmission through positive and negative TX and RX lines for RS422, and A/B signal lines for RS485 multi-device networks.

Connecting serial devices to a 10/100 Base-T Ethernet interface allows organisations to integrate existing serial equipment into modern network environments without replacing legacy hardware. The converter supports baud rates ranging from 300 bps to 38400 bps, covering the full range of serial communication speeds used in control and automation systems.

The IP-2535UN supports multiple operating modes including Virtual COM port, TCP server, TCP client, UDP, and paired connection mode. Virtual COM port functionality allows connected serial devices to appear as standard COM ports on networked computers, simplifying integration with control software and monitoring applications.

Two model variants address different installation requirements. The IP-2535UN is the standard installation unit suited for AV systems, communication equipment, and automation installations. The IP-2535UNDN is the DIN-rail mounted variant, designed for structured installation inside industrial control panels and automation cabinets.

Quick Specs
Model
IP-2535UN / IP-2535UNDN

Ethernet Interface

10/100 Base-T
Serial Standards
RS232, RS422, RS485
Baud Rate
300 to 38400 bps
Isolation
5000V
Surge Protection
15KV
OS Support
Windows, Linux

Need a quote?

Our team responds within 24 hours with a tailored quote for your project or bulk order.

Key Features

Engineered for synchronized AV distribution

One AV source. Four independent outputs. Stable signal performance for continuous professional use.

Multi-Standard Serial Communication

The converter supports RS232, RS422, and RS485 serial interfaces within a single unit, allowing integration with a wide range of serial devices used across control systems, automation networks, and communication equipment.

10/100 Base-T Ethernet Connectivity

The converter connects to standard Ethernet networks using a 10/100 Base-T interface, enabling serial communication to be transmitted over existing network infrastructure for remote device communication and monitoring.

High-Level Electrical Protection

Designed for stable operation in environments where electrical disturbances may occur. The device includes 5000V electrical isolation and 15KV surge protection to safeguard connected equipment and maintain reliable communication.

Flexible Communication Modes

The converter supports multiple operating modes to adapt to different system communication requirements, including Virtual COM port, TCP server, TCP client, UDP, and paired connection mode for point-to-point serial tunnelling over IP.

Cross-Platform OS Compatibility

Driver support is included for all Windows operating systems and Linux, ensuring compatibility with common control and automation platforms. This allows the converter to integrate into different network and automation environments without additional configuration.

Dual Model Variants

Two physically distinct versions are available to match different installation environments. The IP-2535UN is the standard unit for general AV and automation installations. The IP-2535UNDN features DIN rail mounting for integration within industrial control panels and structured cabinets.

Installation

Straightforward setup for any deployment.

The IP-2535UN and IP-2535UNDN are designed for direct integration into Ethernet-connected environments. Select the mounting variant appropriate to your installation, then follow the steps below to configure the converter for your serial network.

01

Choose the Correct Variant

Select the IP-2535UN for standard surface or desk installations in AV and automation setups. Select the IP-2535UNDN if the converter will be installed inside an industrial control panel or cabinet using DIN rail mounting. Both variants are functionally identical.

02

Connect the Serial Device

Wire the serial device to the appropriate terminal. For RS232, connect TX, RX, and GND. For RS422, connect the positive and negative TX and RX differential signal lines. For RS485, connect the A and B signal lines from your serial network.

03

Connect to Ethernet Network

Plug a standard Ethernet cable into the 10/100 Base-T port on the converter and connect it to your network switch or router. The converter will acquire a network address and become accessible over your IP infrastructure for remote communication and control.

04

Configure Communication Mode

Set the operating mode based on your system requirements. Use Virtual COM port mode for software integration on Windows or Linux. Use TCP server, TCP client, UDP, or paired connection mode as required by your control or monitoring application. Install the appropriate driver for your operating system.

Signal Flow — IP-2535UN / IP-2535UNDN
Serial device → IP-2535UN converter → Ethernet network → remote monitoring and control software
Ideal Applications

Designed for real-world industrial environments

The IP-2535UN and IP-2535UNDN are deployed across a broad range of professional settings where serial devices must be networked over Ethernet for remote access, control, and monitoring.

Industrial Automation Systems

Integrates RS485 and RS422 serial PLCs, sensors, and controllers into Ethernet-based SCADA and automation networks for centralised remote monitoring and control.

Building Management Systems

Allows RS232 and RS485 building controllers, HVAC equipment, and access control devices to communicate over the facility Ethernet network for integrated building management.

Power and Energy Monitoring

Connects RS485 energy meters, power monitors, and utility devices to Ethernet networks, enabling remote reading and logging of consumption data from control rooms or central systems.

Remote Device Monitoring

Provides Ethernet-based remote access to serial devices deployed at unmanned sites, enabling operators to monitor and control equipment over LAN or WAN without physical presence.

Professional AV Control Systems

Enables RS232-controlled AV equipment such as projectors, displays, and matrix switchers to be managed over Ethernet networks using Virtual COM port mode with standard control software.

Industrial Control Panels

The DIN rail mounted IP-2535UNDN installs directly inside control cabinets, connecting panel-mounted serial devices to the plant Ethernet network in a clean, organised configuration.

Technical Specifications

IP-2535UN / IP-2535UNDN Specifications

Network Interface
10/100 Base-T Ethernet
Connectivity
RJ45 connector
Supported Standards
RS232, RS422, RS485
RS232 Signals
TX, RX, GND
RS422 Signals
+TX, -TX, +RX, -RX (differential)
RS485 Signals
+TX/RX (A), -TX/RX (B)
Baud Rate Range
300 bps to 38400 bps
Virtual COM Port
Supported — serial device appears as standard COM port
TCP Server Mode
Supported
TCP Client Mode
Supported
UDP Mode
Supported
Paired Connection Mode
Supported
Electrical Isolation
5000V
Surge Protection
15KV
Windows Driver
Supported — all Windows operating systems
Linux Driver
Supported
IP-2535UN
Standard installation unit for AV, communication, and automation environments
IP-2535UNDN
DIN rail mounted version for installation inside industrial control panels and cabinets
Manufacturer
Milestone Electronics Private Limited, Mumbai
Manufacturing
In-house — R&D, production, and QC at Bhandup Industrial Estate
Warranty
Contact us for warranty and support terms
Frequently Asked Questions

FAQs about the ML 104 AV

They allow RS232, RS422, and RS485 serial devices to be connected to Ethernet IP networks for remote communication, monitoring, and control. This enables organisations to integrate legacy serial equipment into modern network infrastructure without replacing existing hardware.

The IP-2535UN is a standard installation version intended for AV systems, communication equipment, and automation installations. The IP-2535UNDN is designed for DIN rail mounting inside industrial control panels and cabinets. Both models share the same communication features and electrical protection specifications.

The device supports 10/100 Base-T Ethernet connectivity via a standard RJ45 port. This allows it to connect directly to existing network switches and routers for integrating serial devices into modern IP-based network infrastructure.

The converter includes 5000V electrical isolation and 15KV surge protection. These features help safeguard connected serial devices and the converter itself from electrical disturbances commonly encountered in industrial and automation environments, ensuring safe and stable long-term operation.

The converter supports Virtual COM port mode, TCP server mode, TCP client mode, UDP communication mode, and paired connection mode. Virtual COM port functionality allows connected serial devices to appear as standard COM ports on networked computers, simplifying integration with control software and monitoring applications.

The converter supports baud rates ranging from 300 bps to 38400 bps. This range covers the full spectrum of serial communication speeds used in industrial control, automation, and monitoring systems, making it suitable for a wide variety of serial device types.

The converter includes driver support for all Windows operating systems and Linux. This ensures compatibility with the majority of industrial control, SCADA, and automation platforms, allowing straightforward integration into both new and existing system environments.

Related Products

Products you may also need

Enables RS232, RS422, and RS485 serial devices to communicate over 10/100 Base-T Ethernet networks...

The IP-2535U MOD is a standard Modbus gateway converter that converts Modbus TCP and RTU...

Ready to order or have a specific requirement?

Our team responds within 24 hours. Bulk pricing, custom solutions, and pan-India delivery are available. Talk to an engineer directly about your setup.

Scroll to Top