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A DB-25 connector as described in the RS-232 standard Data circuit-terminating equipment (DCE) and data terminal equipment (DTE) network. In telecommunications, RS-232 or Recommended Standard 232 [1] is a standard originally introduced in 1960 [2] for serial communication transmission of data.
It is frequently used to implement the serial port for IBM PC compatible personal computers, where it is often connected to an RS-232 interface for modems, serial mice, printers, and similar peripherals. It was the first serial chip used in the IBM PS/2 line, which were introduced in 1987. [2] [3] [4]
In 1987, IEEE introduced IEEE 488.2-1987 specification "Standard Codes, Formats, Protocols, and Common Commands", it was later revised in 1992 as IEEE 488.2-1992. [8] While IEEE 488.2 provided a device-independent syntax, there was still no standard for instrument-specific commands.
Maximum standard speed of both of the 2692's channels is 115.2 kbit/s. The 26C92 is an upwardly compatible version of the 2692, with 8-byte transmitter and receiver FIFOs for improved performance during continuous bi-directional asynchronous transmission (CBAT) on both channels at the maximum standard speed of 230.4 kbit/s.
A male D-subminiature DE-9 connector on an IBM PC compatible computer (with serial port symbol) used for an RS-232 serial port A female D-subminiature DE-9 connector on an RS-232 cable. A serial port is a serial communication interface through which information transfers in or out sequentially one bit at a time. [1]
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.
RS-232 connector (D-Sub DB-25 variant) Many communication systems were generally designed to connect two integrated circuits on the same printed circuit board, connected by signal traces on that board (rather than external cables). Integrated circuits are more expensive when they have more pins. To reduce the number of pins in a package, many ...
Data Terminal Ready (DTR) is a control signal in RS-232 serial communications, transmitted from data terminal equipment (DTE), such as a computer, to data communications equipment (DCE), for example a modem, to indicate that the terminal is ready for communications and the modem may initiate a communications channel.