Isolated RS-232 to RS-485 Signaling Converter

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https://www.electronics-lab.com/project/isolated-rs-232-to-rs-485-signaling-converter/

This project provides a solution for converting RS232 signaling to RS485 signaling. This allows long-distance communication since the range supported by RS232 is normally less than 50 feet while RS485’s range can exceed 1000 feet. The design features an RS232 transceiver, an RS485 transceiver, a multivibrator, and a digital isolator with integrated power to implement […]

4 Channel High-Speed – Robust-EMC Reinforced Digital Isolators

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https://www.electronics-lab.com/project/4-channel-high-speed-robust-emc-reinforced-digital-isolators/

The project described here is a high-performance, quad-channel digital isolator with a 5000VRMS isolation rating as per UL1577. The ISO7740 IC provides high electromagnetic immunity and low emissions at low power consumption while isolating CMOS or LVCMOS digital I/O s. Each isolation channel has a logic input and output buffer separated by a double capacitive […]

Isolated, Single-Channel RS232 transceiver (Isolated RS232 to UART)

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https://www.electronics-lab.com/project/isolated-single-channel-rs232-transceiver-isolated-rs232-to-uart/

The project presented here provides an isolated interface between the RS-232 cable network and the connected UART systems to protect against voltage spikes and ground loops within the noisy environment and improve system reliability. The project achieves a robust data communication link in harsh industrial environment. ADM3251E chip from Analog Devices is the heart of […]