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Explain in detail the DTE-DCE Transmission?
Solution
Data communications equipment (DCE) refers to computer hardware devices used to establish,
maintain and terminate communication network sessions between a data source and its
destination. DCE is connected to the data terminal equipment (DTE) and data transmission
circuit (DTC) to convert transmission signals.
Data Communications Equipment (DCE)
A modem is a typical example of data communications equipment. In general, data
communications equipment is used to perform signal exchange, coding and line clocking tasks as
a part of intermediate equipment or DTE.
Some additional interfacing electronic equipment may also be needed to pair the DTE with a
transmission channel or to connect a circuit to the DTE. DCE and DTE are often confused with
each other, but these are two different device types that are interlinked with an RS-232 serial
line.
DTE and DCE connectors are wired differently if a single straight cable is employed. DCE
generates internal clock signals, while DTE works with externally provided signals. Without
employing a modem, the DCE and DTE can be connected through a crossable cable medium like
a null modem for Ethernet or typical RS-232 serial line. Many modems are DCE, while the
computer terminal is DTE.
The DCE converts the signal to a format appropriate to the transmission medium and introduces
it onto the network link.
A DCE takes data generated by a DTE, converts them to an appropriate signal, and then
introduces the signal onto the communication link. | Commonly used DCEs include modems.
To make communication possible, both the sending and receiving DCEs must use the same
modulating method (e.g.FSK).
Data Terminal Equipment (DTE)
DTE includes any unit that functions either as a source of or as a destination for binary digital
data. It can be a terminal, computer, printer, fax machine .. Or any other device that generates or
consumes digital data. DTE do not often communicate directly with another one; they generate
and consume information but need an intermediary to be able to communicate. Analogy: our
brain does when we talk. Brains –DTE, mouth/ear – DCE, air/telephone line –transmission
medium.
In computer data transmission, DTE (Data Terminal Equipment) is the RS-232C interface that a
computer uses to exchange data with a modem or other serial device.
Data Terminal Equipment is equipment which acts as source or destinations in digital
communication and which is capable of converting information to signals and also reconverting
received signals.
Pieces of data terminal equipment usually do not communicate between each other, which is
usually done by data communications equipment. Common examples of data terminal
equipment: printers, routers, application servers etc.
Features of Data Terminal Equipment:
DTE-DCE INTERFACE
Data Terminal Equipment (DTE) and Data Circuit-Terminating Equipment (DCE) .
There 4 basic functional units involved in the communication data: DTE and DCE at one end and
DTE and DCE at the other and
The DTE generates the data and passes them to a DCE.
The DCE converts the signal to a format appropriate to the transmission medium and introduces
it onto the network link.
When the signal arrives at the receiving end this process is 16 | When the signal arrives at the
receiving end, this process is reversed.
Thank you.

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Explain in detail the DTE-DCE TransmissionSolutionData commun.pdf

  • 1. Explain in detail the DTE-DCE Transmission? Solution Data communications equipment (DCE) refers to computer hardware devices used to establish, maintain and terminate communication network sessions between a data source and its destination. DCE is connected to the data terminal equipment (DTE) and data transmission circuit (DTC) to convert transmission signals. Data Communications Equipment (DCE) A modem is a typical example of data communications equipment. In general, data communications equipment is used to perform signal exchange, coding and line clocking tasks as a part of intermediate equipment or DTE. Some additional interfacing electronic equipment may also be needed to pair the DTE with a transmission channel or to connect a circuit to the DTE. DCE and DTE are often confused with each other, but these are two different device types that are interlinked with an RS-232 serial line. DTE and DCE connectors are wired differently if a single straight cable is employed. DCE generates internal clock signals, while DTE works with externally provided signals. Without employing a modem, the DCE and DTE can be connected through a crossable cable medium like a null modem for Ethernet or typical RS-232 serial line. Many modems are DCE, while the computer terminal is DTE. The DCE converts the signal to a format appropriate to the transmission medium and introduces it onto the network link. A DCE takes data generated by a DTE, converts them to an appropriate signal, and then introduces the signal onto the communication link. | Commonly used DCEs include modems. To make communication possible, both the sending and receiving DCEs must use the same modulating method (e.g.FSK). Data Terminal Equipment (DTE) DTE includes any unit that functions either as a source of or as a destination for binary digital data. It can be a terminal, computer, printer, fax machine .. Or any other device that generates or consumes digital data. DTE do not often communicate directly with another one; they generate and consume information but need an intermediary to be able to communicate. Analogy: our brain does when we talk. Brains –DTE, mouth/ear – DCE, air/telephone line –transmission
  • 2. medium. In computer data transmission, DTE (Data Terminal Equipment) is the RS-232C interface that a computer uses to exchange data with a modem or other serial device. Data Terminal Equipment is equipment which acts as source or destinations in digital communication and which is capable of converting information to signals and also reconverting received signals. Pieces of data terminal equipment usually do not communicate between each other, which is usually done by data communications equipment. Common examples of data terminal equipment: printers, routers, application servers etc. Features of Data Terminal Equipment: DTE-DCE INTERFACE Data Terminal Equipment (DTE) and Data Circuit-Terminating Equipment (DCE) . There 4 basic functional units involved in the communication data: DTE and DCE at one end and DTE and DCE at the other and The DTE generates the data and passes them to a DCE. The DCE converts the signal to a format appropriate to the transmission medium and introduces it onto the network link. When the signal arrives at the receiving end this process is 16 | When the signal arrives at the receiving end, this process is reversed. Thank you.