Direct cable connection

Direct cable connection
For other uses, see DCC (disambiguation).

Direct Cable Connection (DCC), is a feature of Microsoft Windows that allows a computer to transfer and share files (or connected printers) with another computer, via a connection using either the serial port, parallel port or the infrared port of each computer. It is well-suited for computers that do not have an ethernet adapter installed, although DCC in Windows XP can be configured to use one (with a proper crossover cable if no network hub is used) if available.

Contents

DCC with Serial Port

If using the serial ports of the computer, a null modem cable (or a null modem adapter connected to a standard serial cable) must be used to connect each of the two computers to communicate properly. Such connection uses PPP protocol[1][2].

DCC with Parallel Port

If the parallel ports are used, Windows supports standard or basic 4-bit cable (commonly known as LapLink cable), Enhanced Capabilities Port (ECP) cable, or Universal Cable Module (UCM) cable (which was known as DirectParallel cable by Parallel Technologies).

DCC with IR

Infrared communication ports, like the ones found on laptop computers (such as IrDA), can also be used.

DCC with USB

Connecting any two computers using USB requires a special proprietary bridge cable; the usual USB-to-USB cable does not work as USB does not support such type of communication and attempting to do so may even damage the connecting computers as it can short the two computers' power supplies together, possibly destroying one or both machines or causing a fire hazard.[3] Therefore, Direct Cable Connection over USB is not possible; a USB link cable must be used, as seen in the Microsoft knowledge base article 814982. However, with a USB link cable, a program which supports data transfer using that cable must be used. Typically, such a program is supplied with the USB link cable. The DCC wizard or Windows Explorer cannot be used to transfer files over a USB link cable.

Windows Vista changes

Windows Vista drops support for the Direct cable connection feature [4] as ethernet, Wi-Fi and Bluetooth have become ubiquitous on current generation computers. To transfer files and settings, Windows Vista includes Windows Easy Transfer, which uses a proprietary USB-to-USB bridge cable known as the Easy Transfer Cable.

See also

References

  1. ^ Direct Cable Connection between Win95 and Linux
  2. ^ XP Direct Cable to Linux
  3. ^ USB FAQs
  4. ^ Direct cable connection not available in Windows Vista

External links


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