DTE (Data terminating equipment) and DCE (Data circuit terminating equipment) both terms are frequently used in Data communication and networking; these terms can be considered as the type of serial communication devices where basic WAN connectivity between subscriber and provider relies on. The basic difference between DTE and DCE is that DCE is usually located at the service provider whereas DTE is the attached device.
Content: DTE Vs DCE
|Basis for comparison||DTE||DCE|
|Basic||A device that is an information source or an information sink.||A device used as an interface between a DTE.|
|Primary functions||Generates the data and passes them, along with any necessary control characters to a DCE.||Converts the signals to a format appropriate to the transmission medium and introduces it onto the network line.
|Coordination||No coordination is required between DTE devices.||DCE devices must be coordinated in order to communicate.|
|Included devices||Modem||Routers and computers|
|Relation||Connected through the help of a DCE network.||DCE network acts as a medium for two DTE networks.|
Definition of DTE
DTE (Data terminating equipment) is a terminal residing at physical layer or can be anything that could be able to generate to consume digital data like computers. In other words, it is an assembly that operates either as a source of or as a destination for binary digital data.
There is no direct mechanism for DTE to communicate, so communication takes place through some intermediary devices.
Let’s take a real life example which will illustrate the working of DTE. Suppose your brain is a DTE device which can generate and consume ideas. If your brain wants to communicate with your friend’s brain to interpret the idea generated by your brain, It would not be practically possible. Consequently, your brain will take help of your vocal chords for the interpretation of the idea. That’s how a DTE works.
Customer devices that connect to the telephone company’s (telco’s) equipment are known as CTE(Customer telephony Equipment). Demarcation point (demarc) is the meeting spot of customer equipment (DTE) and telephone equipment (DCE).
Definition of DCE
DCE (Data circuit terminating equipment) includes any operative units that transmit or receives data in the form of digital or analog signal in a network. At the physical layer, the DCE take the data generated by the DTE and convert it to appropriate signals. Then it introduce the signal onto the telecommunication link. Commonly used DCE’s at this layer include modems (modulator/demodulator).
In any network, a DTE generates digital data and passes them to a DCE. Then DCE converts the data to a form acceptable to the transmission medium and sends the converted signal to another DCE on the network. The second DCE takes the signal off the line, converts it to a form usable by its DTE, and delivers it. To make this communication possible, both the sending and receiving DCEs must use the same modulating method (e.g., FSK), much the way that if you want to communicate to someone who understands one particular language, then you must speak the particular language.
The two DTEs do not need to be coordinated with each other, but each must be coordinated with its own DCE, and the DCEs must be coordinated so that data translation occurs without loss of integrity.
Key Differences Between DTE and DCE
- DTE is a device that acts as an information source or an information sink for the binary digital data. In contrast, DCE is a device used as an interface between a DTE. It also transmits or receives data in the form of digital or analog signal in a network.
- DTE Generates the data and passes them, along with any necessary control characters to a DCE. On the other hand, DCE converts the signals to a format appropriate to the transmission medium and introduces it onto the network line.
- Coordination is mandatory in DCEs so as to communicate whereas it is not the case in DTE.
- Two DTEs connect with each other by utilizing DCE network.
DTE (Data terminating equipment) and DCE (Data circuit terminating equipment) are the types of serial communication devices.
Both DCE and DTE devices are equally important for WAN connectivity. DTE is a device which can perform as a binary digital data source or destination. While DCE includes devices that transmit or receives data in the form of digital or analog signal in a network.