enow.com Web Search

Search results

1. Results from the WOW.Com Content Network

2. RS-232 - Wikipedia

   en.wikipedia.org/wiki/RS-232

   PCI Express x1 card with one RS-232 port on a nine-pin connector. In the book PC 97 Hardware Design Guide, [9] Microsoft deprecated support for the RS-232 compatible serial port of the original IBM PC design. Today, RS-232 has mostly been replaced in personal computers by USB for local communications. Advantages compared to RS-232 are that USB ...

3. Serial port - Wikipedia

   en.wikipedia.org/wiki/Serial_port

   The only connector specified in the original RS-232 standard was the 25-pin D-subminiature, however, many other connectors have been used to save money or save on physical space, among other reasons. In particular, since many devices do not use all of the 20 signals that are defined by the standard, connectors with fewer pins are often used.

4. Null modem - Wikipedia

   en.wikipedia.org/wiki/Null_modem

   A null modem adapter. Null modem is a communication method to directly connect two DTEs (computer, terminal, printer, etc.) using an RS-232 serial cable.The name stems from the historical use of RS-232 cables to connect two teleprinter devices or two modems in order to communicate with one another; null modem communication refers to using a crossed-over RS-232 cable to connect the teleprinters ...

5. Serial cable - Wikipedia

   en.wikipedia.org/wiki/Serial_cable

   Serial cables are typically used for RS-232 communication. A serial cable or RS-232 cable is a cable used to transfer information between two devices using a serial communication protocol. The form of connectors depends on the particular serial port used. A cable wired for connecting two DTEs directly is known as a null modem cable.

6. Data Carrier Detect - Wikipedia

   en.wikipedia.org/wiki/Data_Carrier_Detect

   Data Carrier Detect (DCD) or Carrier Detect (CD) is a control signal present inside an RS-232 serial communications cable that goes between a computer and another device, such as a modem. This signal is a simple "high/low" status bit that is sent from a data communications equipment (DCE) to a data terminal equipment (DTE), i.e., from the modem ...

7. D-subminiature - Wikipedia

   en.wikipedia.org/wiki/D-subminiature

   A female 9-pin connector on an IBM compatible personal computer may be a digital RGBI video display output such as MDA, Hercules, CGA, or EGA (rarely VGA or others). Even though these all use the same DE-9 connector, the displays cannot all be interchanged and monitors or video interfaces may be damaged if connected to an incompatible device ...