SERIALGEAR USB-4COMi-SI-M USB to Quad RS-422/485 Metal case with DIN-Rail

The optical isolation on this 4 port serial adapter protects your PC from spikes and surges on the RS-422/485 network, by converting the electrical pulse into an optical signal and then changing it back into an electrical pulse. The surges and spikes cannot cross the optical link.

The adapter is built-in surge protector to withstand electrostatic discharge and power surges up to 25KV ESD. The USB-to-Optical isolated Quad RS-422/485 Adapter provides instant connectivity to RS-422 or RS-485 communication devices for POS, factory automation equipment, multi-drop data collection devices, bar code readers, time clocks, scales, data entry terminals, PC to PC long distance communications, ATMs and serial data communication in harsh environments.

Features:

• Adds four RS-422, or RS-485 serial ports by connecting to USB port


• Installed as standard Windows COM port


• 2000V DC optical isolation protection


• 25KV ESD surge protection


• RS-422 data signal: Tx-, Tx+, Rx+, Rx-, GND, RTS-, RTS+, CTS+, CTS-


• RS-485 data signal: 4-wire: Tx-, Tx+, Rx+, Rx- 2-wire: data-, data+


• FIFO: 128 byte transmit buffer 384 byte receive buffer


• Serial port speed up to 920K bps


• Four DB9 male connectors


• Full hardware and software flow control


• Automatic transmit buffer control for 2-wire RS485 half-duplex operation


• 2KV DC optical isolation protection


• ESD surge protection (25KV)


• Monitor LEDs of Power, TxD, RxD indicating power & port status


• OS Support: Windows 10, 8, 7, Vista, XP, 2003, 2000, ME, 98, Linux, and Mac OSX.