Advantech ADAM-4520 Data Acquisition Modules RS-422/RS-485 to RS-232 17:38

Advantech ADAM-4520 Data Acquisition Modules RS-422/RS-485 to RS-232

The Advantech ADAM-4520 is a high-performance, isolated serial communication converter designed for demanding industrial environments. It effectively solves the problem of the short transmission distance and noise susceptibility of standard RS-232 connections by converting them to robust, differential RS-422 or RS-485 signals.

This compact, DIN-rail mountable module allows you to connect any RS-232 device (like a PC, PLC, or HMI) to an RS-422/485 network, extending your communication range up to 1.2 kilometers (4000 feet). With built-in 2500 VDC isolation and surge protection, the ADAM-4520 safeguards your valuable equipment from voltage spikes, ground loops, and electromagnetic interference (EMI), ensuring data integrity and system reliability.

Key Features & Benefits

• RS-232 to RS-422/485 Conversion: Effortlessly connects RS-232 devices to long-distance, multi-drop RS-422 or RS-485 networks. Ideal for factory automation, SCADA systems, and access control.

• Long-Distance Communication: Extends the limited 15-meter range of RS-232 to an impressive 1.2 km using RS-422/485, eliminating the need for costly equipment relocation.

• 2500 VDC High-Speed Isolation: Provides complete galvanic isolation between the RS-232 and RS-422/485 sides. This protects your computer and peripherals from damaging ground loops, power surges, and noise, significantly enhancing system stability.

• Industrial-Grade Robustness: Features built-in surge protection (against lightning and power surges) and automatic data flow control. Its wide operating temperature range (-10°C to 70°C) and DIN-rail mounting make it perfect for harsh industrial settings.

• Data Rates up to 115.2 kbps: Supports high-speed data transfer for responsive and efficient system operation.

• Easy Installation & Operation: Requires no software drivers or external power supply; it draws power directly from the RS-232 interface’s handshaking lines (using a “phantom” power technique). Simply connect your cables and it’s ready to use.

• LED Status Indicators: Visual LEDs for power (PWR) and transmit/receive (TXD, RXD) provide at-a-glance system diagnostics for easy troubleshooting.

Technical Specifications

Applications

The ADAM-4520 is the ideal solution for a wide range of industrial and commercial applications, including:

• Industrial Automation: Connecting PLCs, CNCs, and HMIs to network sensors and drives.

• SCADA Systems: Extending communication to remote telemetry units (RTUs) and field instruments.

• Building Automation: Integrating access control, HVAC, and lighting systems over a single network.

• Point-of-Sale (POS): Connecting cash registers and terminal systems.

• Environmental Monitoring: Linking data loggers and sensors back to a central control room.