ICP DAS tM-7520U tiny isolated RS-232 to RS-485 converter

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ICP DAS’s tM-7520U is a tiny isolated RS-232 to RS-485 converter. Most industrial computer systems provide standard RS-232 serial ports with limited transmission speed, range and networking capabilities; the RS-485 standards overcome these limitations by using differential voltage lines for data and control signals.

The product transparently converts RS-232 signals into isolated RS-485 signals with no need to change any hardware or software. This lets users easily build an industrial-grade, long-distance communication system using standard PC hardware. The module provides 2500 VDC of optical isolation, allowing users to separate and protect critical segments of the system from the rest of the RS-485 network.

The product provides two modes of baud rate setting: Self-Tuner mode and Fixed baud rate mode. The Self-Tuner mode can support multiple baud rates and multiple data formats. The Fixed baud rate mode offers better quality for data transmission over long or lossy lines or electrically noisy environments.