RS-232 Isolated Transceiver Module
RSM232 is an RS‑232 isolated transceiver module that provides electrical isolation between the UART‑side control circuitry and the RS‑232 bus side. It eliminates loop currents caused by ground potential differences between two communication nodes, reduces noise interference, enhances communication quality, and improves bus stability. The module integrates an isolated DC/DC converter, enabling single‑supply operation on the UART side while eliminating the need for an additional isolated power supply or other external components on the bus side, thus achieving 2500 VDC of electrical isolation. Internally, the module incorporates digital isolation components, supporting signal isolation transmission rates of up to 250 kbps and enabling bidirectional conversion between TTL levels and RS‑232 protocol levels. It also features strong electrostatic discharge (ESD) protection, capable of withstanding contact ESD voltages exceeding ±8 kV.
Keywords:
Industrial Communication Module
The JCTM1051KAT series CAN isolation transceiver module complies with ISO 11898‑2. By integrating an isolated power supply and a digital isolator, it achieves complete electrical isolation between the MCU and the CAN bus, eliminating loop currents caused by ground potential differences between nodes, reducing noise interference, enhancing communication quality, and improving bus stability. The module converts the CAN controller’s output into differential signals for connection to the CAN bus, while also translating received differential signals into logic-level inputs for the CAN controller, supporting data rates of up to 1 Mbps. It features an integrated isolated DC/DC converter that shares the MCU’s power supply, eliminating the need for an external isolated power source. The module is designed to withstand the demanding electromagnetic environment of industrial settings, with bus terminals rated to tolerate fault voltages of ±58 V, resist ESD up to ±15 kV (HBM), and operate within a common-mode voltage range of −7 V to +12 V.
Keywords:
Industrial Communication Module
RS-485 Automatic Transceiver with Isolation
The SM485M and RSM3485M are isolated, ultra‑compact RS‑485 high‑speed automatic transceiver switching modules. They provide electrical isolation between microcontrollers, ARMs, and other UART‑interface devices and the RS‑485 bus, thereby eliminating loop currents caused by ground potential differences among communication nodes, reducing noise interference, improving communication quality, and enhancing data transmission stability. The RSM485M/RSM3485M features automatic transceiver switching control, eliminating the need for the controller to supply separate RS‑485 transmit/receive switching signals; the module autonomously toggles between transmit and receive modes based on the incoming signal. With a maximum data rate of 500 kbps and an integrated isolated DC/DC converter, it requires only a single power supply at the UART port, while the bus side needs no additional isolated power supply or external components.
Keywords:
Industrial Communication Module
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