Industrial Series
RS232 to RS422 / RS485 Converter 230V
The LD-15U is a reliable converter that enables communication between RS232 devices and RS422 or RS485 networks. Designed for industrial automation, monitoring, and legacy system integration, it ensures stable data transmission on 230V AC power in demanding environments.
- Supports RS232 to RS422 and RS232 to RS485 signal conversion
- Operates on 230V AC power supply for continuous industrial use
- Accepts RS232 signals via TX, RX, and GND connections
- RS422 differential signaling with improved noise immunity for long-distance runs
- RS485 support for multi-device industrial automation and monitoring networks
Max Resolution
1080p Full HD
Audio Input
Stereo Analogue
Output
Single HDMI
- In-house manufactured
- 24hr response
- 2,000+ clients served
Product Overview
What makes the LD-15U
The LD-15U converts RS232 signals into RS422 or RS485 communication formats, enabling systems with RS232 interfaces to communicate with equipment operating on RS422 or RS485 standards. This bridges legacy serial devices and modern communication networks without requiring complex system modifications.
The converter accepts standard RS232 signals through TX, RX, and GND connections, allowing direct integration with computers, control systems, data loggers, and other serial communication equipment. These signals are then converted into the differential signal transmission used by RS422 and RS485 protocols.
For RS422 communication, the LD-15U supports differential signal transmission using +TX, -TX, +RX, and -RX signals, ensuring stable communication over longer cable distances with improved noise immunity. For RS485 applications, it supports multi-device serial communication networks commonly used in industrial automation and monitoring environments.
Powered by a 230V AC supply, the LD-15U is suited to continuous operation in industrial installations where standard AC power is available. Its panel-mount form factor allows secure integration within control panels, enabling organised wiring and reliable long-term deployment.
RS232 Input
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Key Features
Built for reliable industrial serial communication
RS232 to RS422 and RS485 conversion in a single panel-mount unit, operating on 230V AC for continuous industrial use.
RS232 to RS422 Conversion
The LD-15U converts standard RS232 signals into RS422 differential signal format, allowing integration of RS232 devices with RS422 communication networks. Differential signaling ensures stable transmission over longer cable distances with superior noise immunity compared to single-ended RS232.
- Accepts RS232 signals via TX, RX, and GND
- RS422 differential output: +TX, -TX, +RX, -RX
- Improved noise immunity for long-distance cable runs
RS232 to RS485 Conversion
The LD-15U also supports RS485 communication, enabling connection of RS232 devices to multi-device RS485 serial networks. RS485 is widely used in industrial automation, monitoring, and data communication systems where multiple devices share a common communication bus.
- Compatible with multi-device RS485 networks
- Suitable for industrial automation and monitoring systems
- No complex system modifications required
230V AC Power Supply
The converter operates on a 230V AC power supply, making it directly compatible with standard industrial electrical installations. This eliminates the need for additional power adapters or DC converters, simplifying integration into existing control panel assemblies.
- Direct 230V AC mains operation
- Designed for continuous industrial deployment
- No additional power conversion hardware required
Panel-Mount Form Factor
The LD-15U is designed for panel mounting or integration within control panels. This form factor ensures secure physical installation, organised wiring management, and reliable long-term operation in enclosed industrial control environments.
- Panel-mount or control panel integration
- Secure installation with organised wiring
- Suitable for enclosed industrial enclosures
Legacy Device Integration
By bridging RS232 with RS422 and RS485 protocols, the LD-15U allows legacy serial equipment to communicate with modern industrial networks. System integrators can connect older RS232 devices to current communication infrastructure without replacing existing hardware.
- Connects legacy RS232 equipment to RS422 or RS485 networks
- Compatible with computers, controllers, and data loggers
- Reduces hardware replacement costs
Stable Serial Communication
The converter ensures stable, uninterrupted communication between serial devices operating on different standards. It is designed to maintain consistent signal integrity in demanding industrial environments, supporting reliable data transmission for automation and monitoring applications.
- Stable data communication between RS232 and RS422 or RS485 devices
- Suitable for data acquisition systems
- Reliable performance in demanding industrial environments
Installation
Panel-mount installation for industrial control environments
The LD-15U is designed for straightforward integration within control panels, enabling secure wiring and reliable long-term operation in industrial installations.
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Panel Mounting
The LD-15U mounts directly within a control panel enclosure. Once secured, the RS232 input connections (TX, RX, GND) are wired to the source device, and the RS422 or RS485 output terminals are connected to the target network or device. The 230V AC power supply is connected to the unit's power terminals. This configuration supports organised, permanent wiring within industrial installations.
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Integration Within Control Panels
For installations requiring the converter to be embedded within larger control panel assemblies, the LD-15U can be integrated alongside other panel-mount components. Its compact form factor ensures efficient use of enclosure space. The 230V AC input makes it compatible with standard industrial panel power distribution, and its continuous operation design ensures the converter functions reliably as part of a permanent installation.
Where the LD-15U is used
The LD-15U is suitable for a wide range of industrial communication and automation applications requiring RS232 to RS422 or RS485 conversion.
Industrial Automation Systems
Connect RS232-based computers or controllers to RS485 automation networks. Enables legacy control equipment to communicate with modern automation infrastructure without hardware replacement.
Monitoring and Control Networks
Integrate RS232 monitoring equipment into RS422 or RS485 control networks used in process plants, utilities, and industrial facilities. Supports stable, continuous data transmission across the network.
Data Acquisition Systems
Allow RS232 data loggers and acquisition devices to interface with RS422 or RS485 communication buses. Ensures accurate and stable data transfer from field instruments to centralised systems.
Serial Device Communication Systems
Bridge RS232 peripherals such as barcode scanners, display units, and programmable controllers with RS485 or RS422 communication networks commonly deployed in manufacturing and process environments.
Legacy Equipment Integration
Extend the operational life of RS232-equipped legacy systems by connecting them to RS422 or RS485 networks. Eliminates the need to retire functional equipment solely due to communication protocol incompatibility.
Process Control and SCADA Systems
Connect RS232 workstations or operator terminals to RS485-based SCADA and process control networks. Enables centralized supervisory control over distributed field devices in industrial plants and utilities.
Full specification sheet
- RS232 Interface
- RS422 Interface
- RS485 Interface
- Power Supply
- Mechanical
FAQs about the LD-15U
What devices can I connect with the LD-15U?
The LD-15U supports RS232 devices such as computers, controllers, data loggers, and industrial equipment, enabling communication with RS422 or RS485 networks. Any device with a standard RS232 serial interface using TX, RX, and GND connections can be connected to the converter’s input side.
Can this converter handle long-distance communication?
Yes. Using RS422 differential signaling, the LD-15U ensures reliable long-distance communication with improved noise immunity. RS422 differential transmission is significantly more robust than RS232 over extended cable distances, making the LD-15U suitable for industrial environments where devices are separated by long cable runs.
Is the LD-15U suitable for multi-device RS485 networks?
Yes. The LD-15U supports RS485 networks, making it ideal for multi-device industrial automation, monitoring, and data communication setups. RS485 allows multiple devices to share a common communication bus, and the LD-15U enables an RS232 source device to participate in such a network.
How is the LD-15U installed?
The converter is panel-mounted or can be integrated within control panels, ensuring secure installation and organised wiring for reliable operation. The RS232 input terminals connect to the source device, the RS422 or RS485 output terminals connect to the target network, and the 230V AC power is connected to the unit’s power input.
What are the power requirements for the LD-15U?
The LD-15U operates on a 230V AC power supply, suitable for standard industrial environments and continuous operation. No separate DC power adapter or external power converter is required, as the unit is designed to connect directly to standard AC mains power available in industrial control panels.
Can the LD-15U convert RS232 to both RS422 and RS485, or only one at a time?
The LD-15U supports both RS232 to RS422 and RS232 to RS485 conversion. The appropriate output standard is selected based on the target network or device being connected. This flexibility allows the same unit to be deployed in installations requiring either RS422 or RS485 communication on the output side.
Is the LD-15U suitable for use in existing legacy system upgrades?
Yes. The LD-15U is specifically suited to legacy system integration scenarios where existing RS232 equipment needs to communicate with RS422 or RS485 networks. It allows system integrators to connect legacy serial devices with modern communication infrastructure without requiring complex modifications or full hardware replacement, extending the operational life of existing installations.
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