Industrial Series

/ RS485 Industrial Products
LD-15PN

RS232 to RS422 / RS485 Converter Panel Mounted 230V

The LD-15PN is a panel-mounted converter that enables communication between RS232 devices and RS422 or RS485 networks. Designed for industrial automation, monitoring, and control systems, it ensures stable data transmission in demanding environments.

Input Interface
RS232
Output Interface
RS422 / RS485
Power Supply
230V AC
Mounting
Panel Mounted
RS485 Network
Multi-device
RS422 Signals
+TX,-TX,+RX,-RX

Max Resolution

1080p Full HD

Audio Input

Stereo Analogue

Output

Single HDMI

Product Overview

What makes the LD-15PN

The LD-15PN converts RS232 signals into RS422 or RS485 communication formats, enabling integration between different serial communication systems. This allows devices such as controllers, industrial equipment, and monitoring systems using RS232 to communicate with RS422 or RS485 networks.

The converter supports standard serial communication signals including TX, RX, and GND for RS232 communication, and differential signal transmission for RS422 and RS485 interfaces. For RS422 specifically, the converter supports differential transmission using +TX, −TX, +RX, and −RX signals, allowing reliable communication over longer distances while maintaining signal integrity.

For RS485 applications, the LD-15PN integrates with multi-device serial networks commonly used in industrial automation and monitoring systems. This capability allows system integrators to connect different types of communication equipment without requiring major changes to existing infrastructure.

The LD-15PN operates on a 230V AC power input. The integrated power design ensures consistent performance and reliable communication between connected devices in standard industrial environments.

Quick Specs
Model
LD-15PN

Input Interface

RS232 (TX, RX, GND)
Output Interface
RS422 / RS485
RS422 Signals
+TX, -TX, +RX, -RX
RS485 Network
Multi-device
Power Supply
230V AC
Mounting
Panel Mounted
Signal Type
Differential

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Key Features

Built for industrial serial communication

Dual-protocol conversion. Panel-mounted design. 230V AC power. Built for control systems and industrial automation environments.

RS232 to RS422 Conversion

Converts single-ended RS232 signals into RS422 differential format, enabling reliable communication over longer distances with improved noise immunity and signal integrity.

RS232 to RS485 Conversion

Enables connection of RS232 devices to RS485 multi-device serial networks, which are widely used in industrial automation, monitoring systems, and data communication environments.

Panel-Mounted Form Factor

Designed for installation inside equipment panels and system enclosures, the LD-15PN keeps wiring organised and protects the converter from external damage in industrial environments.

230V AC Power Input

The LD-15PN operates directly from a 230V AC supply, making it immediately compatible with standard industrial power infrastructure without the need for external adapters or additional power supplies.

Standard RS232 Interface Support

Integrates directly with computers, controllers, and serial communication equipment using the RS232 standard, accepting TX, RX, and GND connections without requiring protocol-level changes to the source device.

Differential Signal Transmission

By converting RS232 into differential RS422 or RS485 signals, the LD-15PN significantly improves noise rejection and signal reliability, making it suitable for electrically noisy industrial environments.

Installation

Panel mounting and connection setup

The LD-15PN is installed inside control panels or equipment enclosures and wired directly to RS232 source devices and RS422 or RS485 network lines.

01

Panel Mounting

The LD-15PN is designed to be securely mounted inside equipment panels or system enclosures. Panel mounting protects the converter from external physical damage and helps maintain organised wiring within industrial installations. The device is fixed in position within the enclosure before signal and power connections are made.

02

RS232 Source Connection

Connect the RS232 source device, such as a computer or industrial controller, to the LD-15PN using the TX, RX, and GND signal lines. These standard RS232 connections allow the converter to receive serial data from the source and prepare it for conversion into RS422 or RS485 format.

03

RS422 or RS485 Network Connection

Connect the output side of the LD-15PN to the RS422 or RS485 network. For RS422, use the +TX, -TX, +RX, and -RX differential signal lines to the target device. For RS485, connect to the multi-device bus network to enable communication with multiple devices on the same serial line.

04

230V AC Power Connection

Connect the LD-15PN to a 230V AC power source, typically available within the control panel or industrial enclosure. Once powered, the device provides stable and consistent performance for continuous operation. No external power adapter is required.

Signal Conversion Flow — RS232 to RS422 / RS485
230V AC powers the converter directly from the control panel supply
RS485 Multi-Device Network Connection
RS485 supports multi-device bus networks for industrial automation and data communication
Ideal Applications

Where the LD-15PN performs

Designed for industrial and automation environments where reliable serial protocol conversion between RS232 and RS422 or RS485 is required.

Industrial Automation Systems

Connect RS232 controllers and computers to RS485 automation buses, enabling integration with PLCs, actuators, and sensors in industrial manufacturing environments.

Monitoring and Control Networks

Integrate RS232 monitoring equipment into RS422 or RS485 control networks used in building management, process control, and remote monitoring installations.

Serial Device Communication Systems

Bridge legacy RS232 serial devices with modern RS422 or RS485 communication infrastructure, allowing continued use of existing equipment without replacing source hardware.

Data Acquisition and Instrumentation

Connect RS232 data acquisition hardware to RS422 or RS485 instrumentation networks in laboratory, field measurement, and process monitoring applications.

Control Panel Integration

The panel-mounted design makes the LD-15PN well suited for permanent installation inside electrical control panels and system enclosures in industrial facilities and power distribution setups.

SCADA and Remote Terminal Units

Enable RS232-based SCADA hosts and remote terminal units to communicate over RS485 multi-drop bus networks in utilities, water treatment, and infrastructure management systems.

Technical Specifications

Full specification sheet

Input Interface
RS232 (TX, RX, GND)
Output Interface
RS422 / RS485 (selectable)
RS422 Signal Lines
+TX, -TX, +RX, -RX (differential)
RS485 Network Type
Multi-device bus network
Signal Transmission Type
Differential (RS422 / RS485)
Input Power
230V AC
Power Supply Type
Integrated AC power input
Suitable For
Standard industrial panel installations with 230V AC supply
Mounting Type
Panel Mounted
Installation Location
Inside equipment panels or system enclosures
Recommended For
Industrial automation, monitoring systems, control networks, data acquisition, SCADA installations
Compatible Source Devices
Computers, industrial controllers, serial communication equipment with RS232 output
Compatible Target Networks
RS422 point-to-point and RS485 multi-device serial networks
Frequently Asked Questions

FAQs about the LD-15PN

The LD-15PN supports RS232 devices such as computers, controllers, and industrial equipment, allowing them to communicate with RS422 or RS485 networks. It accepts RS232 signals through TX, RX, and GND connections on the input side.

Yes. Using RS422 differential signaling, the LD-15PNV ensures reliable long-distance communication while maintaining signal integrity. Differential signal transmission is significantly more resistant to noise and line interference compared to single-ended RS232, making it suitable for extended cable runs in industrial environments.

Yes. The LD-15PNV supports RS485 communication, making it suitable for multi-device industrial automation, monitoring, and data communication setups. RS485 allows multiple devices to share a single bus, and the converter enables an RS232 source to communicate across this type of network.

The converter features a panel-mounted design, allowing secure installation inside control panels or equipment enclosures. This type of installation helps protect the unit from physical damage and maintains organised wiring within the panel. The RS232 source and RS422 or RS485 network connections are made after the unit is mounted in position.

The LD-15PNV operates on a 230V AC power input, suitable for standard industrial environments. The integrated power supply means no external adapter is required; the unit can be connected directly to the 230V AC supply available within the control panel or enclosure.

RS422 uses four differential signal lines (+TX, -TX, +RX, and -RX) and is primarily used for point-to-point communication over longer distances, offering full-duplex operation with high noise immunity. RS485 is typically used for multi-device bus networks where several devices share a common communication line, making it the preferred choice for industrial automation systems that require multiple nodes on a single network. The LD-15PNV supports both formats, allowing selection based on the requirements of the target installation.

The LD-15PNV is a hardware converter that operates at the signal level, converting RS232 electrical signals into RS422 or RS485 differential format. It does not require driver software or protocol-level configuration on the source device. The RS232 source device communicates as it normally would, and the converter handles the electrical signal translation transparently.

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