DT-5019 USB to RS422 / RS485 Serial Port Converter

描述
This product is great to connect any RS485 or RS422 device directly to your computer’s USB port. It is ideal for industrial environments, the serial port converter provides 15KV ESD protection on all signal pins to protect costly and often sensitive control equipment against electrical damage.
It is designed with a high-performance quality processor chip (FTDI Chipset) and conversion circuitry which makes this USB to RS485 converter one of the most reliable adapters on the market. There are no IRQ and COM port conflicts since the port do not require any additional IRQ, DMA, memory as resources on the system.

Features
Connector Type: USB type A Male, DB9 Male
Cable Length: 1.2m
Speed: 12Mbps(Full-speed USB)
Interface: Serial
Serial Standards: RS485, RS422
Serial Line protection
ESD Protection: 15KV embedded
Direction: Automatic send data control – no software drivers needs
Band rate: 300bps ~115,200bps, automatic test signal rate
Transmission Distance: RS-485/422 side 1,200m (9,600bps), USB side 5m
OS: Win 10, 8, 8.1, 7, Vista, XP, Linux and Mac
Operating Temperature: -20°C ~ 60°C
Storage Temperature: -25°C ~ 85°C
Operating Humidity: 5% ~ 95% RH
Input powered: no external power supply needed
Flow Control: RTS/CTS, XON/XOFF
FIFO: 128bytes
Loading: 32 nodes or custom 128 nodes

Pinout: 
USB signal: VCC, DATA+, DATA-, GND, FG
RS-485 signal: D+, D, GND
RS-422 signal: R+, R-, T+, T-, GND