A serial 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.
Moreover, what is RS 422 cable?
RS-422, also known as TIA/EIA-422, is a technical standard originated by the Electronic Industries Alliance that specifies electrical characteristics of a digital signaling circuit. Differential signaling can transmit data at rates as high as 10 Mbit/s, or may be sent on cables as long as 1500 meters.
Is rs232 full or half duplex?
Exactly when data flows bi-directionally further defines Duplex communications. Full Duplex devices can transmit and receive data at the same time. RS232 is a fine example of Full Duplex communications. There are separate transmit and receive signal lines that allow data to flow in both directions simultaneously.
What is a db9 cable used for?
The term “DB9” refers to a common connector type, one of the D-Subminiature or D-Sub types of connectors. DB9 has the smallest “footprint” of the D-Subminiature connectors, and houses 9 pins (for the male connector) or 9 holes (for the female connector).
How long can you run a serial cable?
Lengths of serial cables. The RS-232 standard 9600bps port will drive 15 metres of shielded cable. More precisely, an RS-232 line driver will operate against a capacitance of up to 2500 picoFarad with low enough skew to allow a 9600bps signal to be recovered.
How many pins are on a serial port?
The serial ports on most computers use a subset of the RS-232C standard. The full RS-232C standard specifies a 25-pin “D” connector of which 22 pins are used. Most of these pins are not needed for normal PC communications, and indeed, most new PCs are equipped with male D type connectors having only 9 pins.
What is the use of console port?
Every Cisco router or a switch has a console port (also known as the management port) on its back side. A special type of cable, known as roll over cable is used to connect the Serial/COM port of the computer to the router or switch console port.
What is a serial port connector used for?
A socket on a computer used to connect a modem, data acquisition terminal or other device via a serial interface (one data bit following the other). Serial ports provide very slow speeds and have been superseded by USB and other faster interfaces for peripheral connections to desktop computers.
What is a serial connection?
In telecommunication and data transmission, serial communication is the process of sending data one bit at a time, sequentially, over a communication channel or computer bus. This is in contrast to parallel communication, where several bits are sent as a whole, on a link with several parallel channels.
Can you use a serial port for a monitor?
In summary, no, a serial port is not a video port and there is no way to use a monitor of any kind with it (even a 9-pin monitor, let alone 15-pin one). Since it does not have onboard video, you will need to install a video-card. A 9 pin serial port is a communication port and CANNOT be used for a monitor.
What is DCE and DTE in networking?
A data circuit-terminating equipment (DCE) is a device that sits between the data terminal equipment (DTE) and a data transmission circuit. It is also called data communication(s) equipment and data carrier equipment. Usually, the DTE device is the terminal (or computer), and the DCE is a modem.
What is the maximum length of a serial cable?
What is a serial DCE cable?
DTE is typically either a dumb terminal or the serial port on a computer/workstation. DCE is typically a modem, DSU/CSU, or other piece of data communications equipment, hence the names. Therefore, a straight through “one to one” cable is all that is necessary between a modem and a standard DTE serial port.
What is a USB and how is it used?
USB (Universal Serial Bus) is the most popular connection used to connect a computer to devices such as digital cameras, printers, scanners, and external hard drives. USB is a cross-platform technology that is supported by most of the major operating systems.
What are COM ports on a computer?
In computer hardware, a port serves as an interface between the computer and other computers or peripheral devices. Computer ports have many uses, to connect a monitor, webcam, speakers, or other peripheral devices.
What is the serial port and parallel port?
A serial port is an interface on a computer system with which information is transferred in or out one bit at a time. An interface is a connection between two subsystems. In contrast to serial ports, a parallel port consists of multiple wires over which bits are transferred in parallel, i.e., simultaneously.
What is the use of a patch panel?
A patch panel in a local area network (LAN) is a mounted hardware assembly that contains ports used to connect and manage incoming and outgoing LAN cables. Patch panels are also referred to as patch bays, patch fields or jack fields and are also commonly used in radio and television.