USB to RS485 Opto device is used for connection established between computer using USB port and devices with communication channel RS485. The system allows connecting several interface controllers to one commanding device. The device is based on CH340G and MAX485 chip.
The RS485 interface used allows connecting up to 32 devices to one interface controller. Access controllers can be connected through FTP cable and the cable length must NOT exceed 1200 meters.
Key Features:
2 or 3-Wire connection by RS485
Supply Voltage: 7÷24V DC
Reverse-voltage protection
USB and RS485 are galvanically isolated from one another
Automatic data direction control
Serial Speed: from 9600kbps up to 115200kbps
LED indication for PWR supply voltage
LED indication for RX, TX receiving and transmission
PCB Size: 66mm х 21mm
Supporting operating systems: Win XP, Win Vista, Win7, Win8, Win10, Linux, MAC