- ESD surge protection and optical isolation
- FIFO buffer
- I/O addresses and interrupt: set from the operating system
- Power from the USB bus
- Supports TX and RX activity LED indicators
The EX-1339HMV USB 2.0 to serial RS-232/422/485 with surge protection and optical isolation in a metal case, provides eight high performance 16C550-type UART compatible RS-232, 422 or 485 serial ports. It is designed for PC or notebooks to provide instant COM port expansion in a robust metal case through the USB 2.0 bus. With the easy installation you don't need to open the computer system and install the EX-1339HMV when the system run. The EX-
1339V has LED displays for operation functions and data communication.