Compatible with TTL or RS232 standard, can convert TTL signal into RS232 signal, full-duplex communication Multiple protections, safe and , stable communication, onboard power and signal dual isolation, can provide stable isolation voltage, high reliability and strong anti-interference on-board protection diode ensures stable output of current and voltage, prevents overcurrent and overvoltage, and improves impact resistance Rail-type serial port server is more convenient for rail installation and use. The flat design can be used in combination and side by side, with a higher degree of freedom Can be used for interface conversion and extended communication distance Application fields: It can be widely used between the host computer, the host computer and the microcontroller or peripherals to form a point-to-point remote communication network to achieve response communication, or other industrial automation, Internet of Things, etc. that require TTL to RS232 conversion. Application scenarios Product type: Electrically isolated TTL to RS232 serial port converter Power supply interface Supply voltage: 3.3V - 5V Interface protection: prevent overvoltage, prevent reverse connection Device interface: compatible with TTL or RS232 standard Transmission distance: less than 10 meters Transmission mode: point-to-point Interface protection: tube protection, surge and electrostatic protection, power supply and digital isolation Transmission distance: about 15 meters Transmission mode: point-to-point Indicator light: PWR: Power indicator light, when connected to the power interface, the red light will light up when voltage is detected. TXD: Transmission indicator light, it will light up when data is sent from the RS232 interface. RXD: Receive indicator light, lights up when data is sent fromthe TTL interface Colour:White Material:ABS Package Contents: 1x Serial Converter 1x Screwdriver Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is 1-3cm.