Adopting industrial-grade chip FT232, SP3485, etc., to achieve the USB signal and RS485/RS422 signal conversion, optimise the circuit to achieve automatic transceiver conversion, without the need for ‘transmitter-receiver' control, so that the two ends of the interface communication is more rapid and stable.
With independent DC-DC power isolator and digital isolation chip.
Can provide stable isolation voltage and output short-circuit protection, the isolation end without additional power supply, digital isolator with excellent performance characteristics and reliability, signal isolation, so that the transmission of the signal is more stable.
USB terminal with electrostatic ESD protection circuit, effectively preventing electrostatic damage
RS485 terminal with overcurrent protection, surge protection, lightning gas discharge protection circuitry On-board TVS (Transient Voltage Suppressor), to reduce the surge voltage and transient spike voltage in the circuit
On-board self-recovery fuse to stabilise current and voltage output, reduce over-current and over-voltage and electrostatic discharge, strong shock resistance
On-board GDT gas discharge tube, the use of discharge tubes will be powerful lightning current leakage into the ground, so that the subsequent circuit and equipment
On-board 120R termination resistor selector toggle switch, which can increase the stability of signal transmission.
Baud rate support range:
RS422: ≤2M bps; RS485: ≤2M bps (experimental environment)
On-board three LEDs for indicating the sending and receiving status of the circuit signals.
PWR light: red, power indicator
TXD light: green, RS422/485 data transmission indicator, data flow: USB->RS422/485
RXD light: blue, RS422/485 data receiving indicator, data flow: RS422/485->USB
USB-B interface and 5.0mm screw terminal wiring, free USB cable, ABS environmental protection shell, DIN rail mounting