USB2-4COM PRO Specifications & Features

- Serial connector : four DB9 male connectors
- Power Supply: requires an external power adapter (DC5V, 1.6A).
- Adds high speed RS-232 / 422 / 485 port via USB connection
- 384 byte receive buffer
- 128 byte transmit buffer for high speed data throughput
- Requires no IRQ, DMA, I/O port
- Serial transmission speed up to 921.6 Kbps
- Suitable for 4-wire RS-422/485 and 2-wire RS-485 applications
- Auto receive/transmit control for 2-wire RS-485 half-duplex operation
- Tx ,Rx Termination resistors installed on-board and easy enable/disable via software utility or console port
- Tx , Rx BIASing resistors installed on-board and easy enable/disable via software utility or console port
- Easy operation mode change via software utility or console port
- RS-232 data signals : DCD, RxD, TxD, DTR, GND, DSR, RTS, CTS, RI
- RS-422 data signals : Tx-, Tx+, Rx+, Rx-, GND, RTS-, RTS+, CTS+, CTS-
- RS-485 data signals : Tx-, Tx+, Rx+, Rx-(4 wire), and data-, data+(2 wire)
- Monitor LEDs of TxD, RxD of each port indicating port status
- Monitor LEDs of mode indicating serial port operation mode
- Virtual COM port drivers available for Windows 7 / Vista / 2003 / XP / 2000
- Metal case