Answer / jitendera kumar sinha

ok you have ask dte and dce
here i am trying to expalin
DTE-data terminal equpment
in the data terminal equpment the following processs take
palse
1 data termination
2 data genrtation
3 data sending
thus from above expalnation wha is the best example of dte
type device
answer is router
router is a dte device?
now
DCE=data circit termination equpment. thus this is that
type of device whichsimply allow the data to pass within
then self without any modification
so what should be example of that type of device
it is
swirch
hub
modem
repeter
etc
hope that will help you
thanks
jitendera kumar sinha

Answer / ganesh dhakchavle

DTE : Data Terminal Equipment
DCE : Data Circuit-Terminating Equipment

The equipments connected on a serial link need to have
exactly the same transmission speeds otherwise the link will
flap (up, down, up, down, ...). However the internal clock
of the equipments have probably not exactly the same speed
(because they use quartz that are not perfect, these quartz
use the local power frequency which wont be necessary the
same, etc). As they don't have the same clock speed, they
must find a way to be synchronized... The standards have
defined that DCE will give the clocking to DTE.

Usually, DCE equipments are provider equipments (because
they use the same clock for their entire network or at least
for a great part) and DTE equipments are customer equipments.

Answer / nikhil maggu

a computer(CPU) is also a DTE device

Answer / sandeep

dte means: data terminal equipment, example: pc,printer,which is use for terminating point............
dce means: data communication equipment, example: modem, switch, hub, repeater, which r use between two device.............

Answer / s.m.feroz ahmed

Hi,

DTE stands for Data Terminal Equipment and DCE stands for
Data Communication Equipment.If there are 2 routers then
DCE cable is used for connectivity and for configuring a
Router DTE cable is used which is connected to Console port
on CPU for configuration of Router.

Answer / ashish kumar tiwari

Most data communication protocols specify communications
between two types
of equipment. Typically, one is called DTE (Data Terminal
Equipment) and the
other is called DCE (Data Circuit-Terminating Equipment).
For instance, in EIA-
232 communications, DTE devices (terminals, PCs, mini-
computers) are quite
stubborn and only want to talk to DCE devices (modems,
multiplexers), and vice
versa. For this reason, you may connect a PC COM port to a
modem using a
"straight through" EIA-232 cable. However, when you must
connect a PC COM
port to another PC COM port, you must use a "null-modem"
cable. The function
of the null modem cable is to "trick" the DTE device into
believing that it is
talking to a DCE device by cross-wiring the data and
control pins in the cable.
Ethernet AUI (Attachment Unit Interface) also uses the
DTE/DCE convention,
However, itÕs not as simple as it is with EIA-232.

The AUI port of a WorkstationÕs NIC (Network Interface
Card) is a female DB-15
DTE. So is the AUI port on a multiport hub/repeater such as
PattonÕs Model
2108. The AUI port of an Transceiver like the Model 2100,
is a male DB-15
configured DCE. Therefore, it can plug directly into AUI
port of the NIC or to the
Model 2108.
The problem comes with the need to connect a DTE to another
DTE, or a DCE to
another DCE. The answer is simple: Unlike RS-232, it canÕt
be done with just a
cable.
If it were simply a matter of crossing the DI (Data In)
pins to the DO (Data Out)
pins via a null modem cable, the matter could be solved
simply. However, the CI
(Control In) signals are used specifically by the DCE to
indicate to the DTE that a
collision has been detected or during a Signal Quality
Error. If one were to
connect a DTE device to another DTE device with a null
modem cable, there
would be no provision for this signal. Similarly,
connection between two DCEs
would cause these signals to conflict with one another.
There are CO (Control
Out) signals in Ethernet, but these signals are used for
another function and are
almost never used. So whatÕs the solution when connecting
two DTEs together?
In order to connect two DTEs together, such as a
workstation to a Model 2108
hub, two Model 2100s may be used, one connects to the
workstationÕs AUI port,
and the other to the AUI port of the Model 2108 with 10Base-
T twisted pair
connections in between. The Model 2108 also allows up to 8
additional 10Base-T
connections at UTP connections up to 330 ft

Answer / jignesh desai

The Main Difference between DTE & DCE is Clocking.
DTE does not clocking while DCE goes
according to clocking.

Answer / md. asfan siddiqui

DTE stands for Data Terminal Equipment and DCE stands for
Data Communication Equipment.If there are 2 routers then
DCE cable is used for connectivity and for configuring a
Router DTE cable is used which is connected to Console port
on CPU for configuration of Router.DTE is the end user
machine, generally refers to (Devices) terminals and
computers.DCE is used to connect the communication channel.

Answer / dude

A data circuit-terminating equipment[1] (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[2] and data carrier equipment.[citation needed] Usually, the DTE device is the terminal (or computer), and the DCE is a modem.
In a data station, the DCE performs functions such as signal conversion, coding, and line clocking and may be a part of the DTE or intermediate equipment. Interfacing equipment may be required to couple the data terminal equipment (DTE) into a transmission circuit or channel and from a transmission circuit or channel into the DTE.
Although the terms are most commonly used with RS-232, several data communications standards define different types of interfaces between a DCE and a DTE. The DCE is a device that communicates with a DTE device in these standards. Standards that use this nomenclature include:
Federal Standard 1037C, MIL-STD-188
RS-232
Certain ITU-T standards in the V series (notably V.24 and V.35)
Certain ITU-T standards in the X series (notably X.21 and X.25)
A general rule is that DCE devices provide the clock signal (internal clocking) and the DTE device synchronizes on the provided clock (external clocking). D-sub connectors follow another rule for pin assignment. DTE devices usually transmit on pin connector number 2 and receive on pin connector number 3. DCE devices are just the opposite: pin connector number 2 receives and pin connector number 3 transmits the signals.
When two devices, that are both DTE or both DCE, must be connected together without a modem or a similar media translator between them, a crossover cable must be used, e.g. a null modem for RS-232 or an Ethernet crossover cable.

Answer / chandrashekara venkatesh

- Data terminal equipment (DTE).
- Data circuit terminating Equipment (DCE) concept.

Most digital data processing device have limited data
transmission capacity and limited distance of data
transmission. DTE is the end user machine, generally refers
to (Devices) terminals and computers.

Example: Email terminal, workstation, ATM in a bank, sales
terminal in a departmental store. They are not commonly
connected directly to transmission medium.

DCE is used to connect the communication channel.

Example: modem. It interacts with DTE and provides an
interface of DTE to communication network transmits and
receive bits one at a time over the communication channel.

To specify the exact nature of interface between DTE and DCE
various standards and protocols have been developed. DCEs
and DTEs are connected in two ways. A high degree of
cooperation is essential in DTE-DCE combination, as data and
control information is to be exchanged. They can be
connected in two ways

- Point to point configuration: Here only two DTE devices
are in the channel


- Multidrop configuration: Here more than two devices are
connected to the same communication channel.

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