RS422/RS485 to 4 RS232 ;4 RS422/RS485 Converter Splitter : LDA-112UDRMP

The Milestone LDA-112UDRMP is a professional RS422/RS485 to RS232 converter splitter that expands a single serial signal into four RS232 and four RS422/RS485 outputs. Engineered for security, AV and industrial integrators, it lets one control device communicate reliably with multiple remote peripherals at once, cutting down cabling and simplifying rack layouts. The unit is built for continuous operation and delivers stable serial communication over long distances.

Key Features

Key Features

• 1-to-12 RS232 to RS422/RS485 Amplifier & Distribution Hub: Converts and amplifies a single RS232 master input signal into twelve independent, isolated RS422/RS485 output channels for reliable long-distance data transmission across large industrial networks.

• 19-Inch Rack-Mount Chassis (RMP): Enclosed in a standardized rack-mountable (RMP) industrial metal housing designed to fit standard 19-inch equipment racks in central control rooms, server closets, and SCADA centers.

• Selectable 2-Wire & 4-Wire Operating Modes: Fully supports both 2-wire half-duplex (RS485) and 4-wire full-duplex (RS422/RS485) communication modes across all 12 output ports via onboard DIP switches or jumpers.

• Optoelectronic Isolation & Transient Protection: Built-in optical isolation and surge suppression protect upstream controllers and downstream field devices from power spikes, ground loops, and electrical noise.

• Automatic Data Direction & Baud Control: Features automatic hardware flow control and baud rate sensing, eliminating the need for software-driven RTS/CTS handshaking lines.

• Comprehensive Diagnostic LED Panel: Equipped with clear front-panel LED indicators for Power, Master Transmit (TX), and individual Receive (RX1–RX12) channels for real-time status and data traffic monitoring.

Applications
• Distributing serial data from one console to multiple DVRs, NVRs and CCTV controllers
• Driving multiple access control readers and controllers from a single host port
• Connecting industrial automation, building management and HVAC systems to a central PC
• Linking POS terminals, display boards and serial printers to one communication gateway

Summary
The Milestone LDA-112UDRMP is a dependable serial converter splitter that helps integrators control several RS232 and RS422/RS485 devices from one port. Its clean design, stable performance and easy wiring make it a smart, cost-effective choice for professional AV and security installations.