USB to RS-232/422/485 Converters
ICP DAS CO., LTD.
User Manual/ Ver. 1.0/ Dec. 2013/ Page: 5
1.1
Overview
What is USB?
The Universal Serial Bus (USB) is an industry standard connectivity specification developed by
computer and telecommunication industry members and is used to attach external peripherals to
computers. USB was designed to standardize the connection of peripherals and eliminate the need
to open the computer case in order to install additional interfaces needed for certain devices. USB is
designed to meet the Microsoft Plug and Play (PnP) specifications, meaning that users can install
and hot-swap external devices without requiring lengthy installation procedures and reducing the
need to reboot the computer.
The I-756xU USB to RS-232, RS-485 or RS-422 converter is a smart and convenient accessory that
allows RS-232/RS-422/485 serial devices to be connected to a USB-equipped Windows or Linux host
computer. The I-756xU provides a bridge connection that includes a standard DB 9-pin male serial
port connector at one end and a standard Type-A USB plug connector at the other. Simply attach
the serial device to the serial port on the cable and insert the USB connector into the USB port on
the PC. This provides a convenient method of adding serial connections to the PC without having to
install an additional serial card or perform the necessary configuration associated with a traditional
port connection.
This USB to Serial adapter is ideal for connecting modems, cellular phones, PDAs, digital cameras,
card readers and other serial devices to your computer. It provides serial connections up to 1 Mbps
of data transfer rate. And since USB does not require any IRQ resource, more devices can be
attached to the system without the previous hassles of device and resource conflicts.
The I-756xU USB-to-Serial adapter is fully compliant with the USB specifications and therefore
supports advanced power management, such as suspend and resume operations as well as remote
wakeup. I-756xU USB-to-Serial products are designed to work on Linux, Windows 98/ME/2000 and
32 and 64-bit Windows XP/Vista/7/8 operating systems.
