TTL to RS422/RS485 Converter Module, Industrial Grade Design with Automatic Transceiver Circuit, Power Signal Isolation, LED Indicators

Fast and stable: Adopting the original SP3485, stable performance, conforming to industrial-grade design standards. The module performs interconversion between TTL and RS485/RS422 signals. Integrated automatic transceiver conversion circuit eliminates the need for "receive and send" control, allowing for faster and more stable communication between the two interface ends. Adopting a standard 5.08 mm terminal block, it offers smooth and robust plugging and unplugging. DC power isolation: Integrated digital isolator with excellent performance and reliability characteristics for signal isolation, resulting in a more stable transmitted signal. The integrated DC power isolation provides stable isolation voltage and output short-circuit protection without requiring additional power at the isolated end. 5V power supply: The circuit uses only a 5V power supply; the output signal from the TTL signal terminal is 5V (identical to the supply voltage). The input voltage is 5V (compatible with 3.3V signal input). When the module is operating, it must be connected to the power supply voltage at the TTL terminal. It uses bulk packaging components for greater stability and reliability. It features independent power supply and signal isolation circuits. Safety protection: The TTL end includes overcurrent and overvoltage protection. The TTL to RS422/RS485 converter ensures stable current and voltage output and strong shock resistance. The RS485/RS422 terminal also features overcurrent and overvoltage protection, as well as a gas discharge prevention circuit. The onboard TVS (Transient Voltage Suppression Tube) effectively reduces surge and peak voltage. Self-resetting fuse: The built-in self-resetting fuse ensures stable current and voltage output, prevents overcurrent and overvoltage, and protects against electrostatic discharge. It also has a high capacity. Shockproof. On board the GDT gas discharge tube, you can use the discharge tube to drain the powerful current into the ground, so that subsequent circuits and equipment avoid damage due to a power surge.