COM-4CN-USB

Overview / Features

This product is a USB 2.0 unit for expanding the USB port of a PC into four channels of RS-232C-standard serial communication functions. These products support a baud rate of up to 921,600bps and has separate 128-byte / 384-byte buffer memory for transmit and receive. Windows/Linux device driver is supported with this product.

• Max. 921,600bps RS-232C Serial Communication
  • The COM ports of this product support up to 921,600 bps. The product has four RS-232C-standard COM ports channel.
• Equipped with an easy-to-use 9-pin D-SUB connector, just like a PC
  • This product has a 9-pin D-SUB connector, the most commonly used RS-232C connector, allowing for the use of commercially available RS-232C-standard cables
• Possibly used as Windows, Linux-standard COM ports
  • Combining the product with our device driver COM-DRV makes it possible to use the product in the same manner as the COM ports of a PC.This product supports communication using DCB structures in the Win32 API and Linux-standard system calls. In addition, supplies a diagnostic program to confirm hardware operation and to perform a communication test with equipment.
• Each channel is equipped with separate 128-byte / 384-byte FIFO buffers for transmit and receive.
  • Equipped with a buffer memory for transmitting 128 bytes and receiving 384 bytes for each channel. These are FIFO format, useful for high speed communications and to reduce the load to the CPU when transmitting/receiving.
• Compatible to USB2.0/USB1.1 and not necessary to power this product externally as the bus power is used
  • Compatible to USB2.0/USB1.1 and capable to achieve high speed transfer at Full Speed (12Mbps). Not necessary to power this product externally as the bus power of USB is used.
• Run by USB buspower
  • Not necessary to power this product externally as the bus power of USB is used.