USB 422/485 PRO Module with Rail, DB9 Male, Serial Converter

Summary

• High Speed: Industrial grade chips FT232 and SP3485 for high speed communicating is stable, and highly compatible. This module enables mutual conversion between USB signals and 485/422 signals. It features an onboard automatic transceiver switching circuit, eliminating the need for receive transmit control, thereby increasing the speed and stability of interface communicating at both ends.
• USB B Interface: Equipped with a USB B interface and a 5.0mm screw terminal, ensuring smooth plugging and unplugging, robustness, and reliability. It includes independent power and signal isolation circuits. The onboard digital isolator delivers excellent performance characteristics and reliability for signal isolation, ensuring more stable signal transmission.
• Safety: Onboard DC/DC power isolation provides stable isolation voltage and short circuit guard, requiring no additional power supply to the isolated end. The USB side is equipped with an ESD guard circuit to effectively prevent electrostatic damage and protect subsequent circuits and devices. The 485 side is equipped with overcurrent, surge guard.
• Onboard TVS: Transient voltage suppressor effectively suppresses surge and transient spike voltages in the circuit, protecting downstream circuits and devices. An onboard resettable fuse ensures stable current and voltage output, guarding against overcurrent, overvoltage, and electrostatic discharge, with strong anti impact .
• Stable Transmission: Features GDT gas discharge tube for directing thunderstorm currents to the ground, protecting circuits and devices from surge impacts. Includes 120R terminal resistor selection switch for enhanced signal transmission stability.