RS-232 devices may be classified as Data Terminal Equipment ( DTE ) or Data Communication Equipment ( DCE ); this defines at each device which wires will be sending and receiving each signal.

LMI virtual circuit status messages provide communication and synchronization between Frame Relay DTE and DCE devices.

A general rule is that DCE devices provide the clock signal ( internal clocking ) and the DTE device synchronizes on the provided clock ( external clocking ).

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.

Two different types of devices are assumed on each end of the interconnecting cable for a case of simply adding DTE to the topology ( e. g. to a hub, DCE ), which also brings a less trivial case of interconnection of devices of the same type: DTE-DTE or DCE-DCE.

A general rule is that DCE devices provide the clock signal ( internal clocking ) and the DTE device synchronizes on the provided clock ( external clocking ).

* 25 pin DCE devices transmit on pin 3 and receive on pin 2.

* 9 pin DCE devices transmit on pin 2 and receive on pin 3.

If it is necessary to connect two DTE devices ( or two DCE devices but that is more unusual ) a special cable known as a null-modem cable must be used.

LAPB is used to manage communication and packet framing between data terminal equipment ( DTE ) and the data circuit-terminating equipment ( DCE ) devices in the X. 25 protocol stack.

Bit-synchronous operation is a type of digital communication in which the data circuit-terminating equipment ( DCE ), data terminal equipment ( DTE ), and transmitting circuits are all operated in bit synchronism with a clock signal.

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.

Note 4: Isochronous burst transmission has particular application where envelopes are being transferred between data circuit terminating equipment ( DCE ) and only the bytes contained within the envelopes are being transferred between the DCE and the DTE.

The DTE ( Data Terminal Equipment ) and DCE ( Data Circuit Terminating Equipment ) are treated as equals.

Devices are divided into two categories " data terminal equipment " ( DTE ) and " data circuit-terminating equipment " ( DCE ).

Conventionally, computers and terminals are DTE while modems and perhipherals are DCE.

The DTE and DCE are treated as equals.

The following table shows which addresses are placed into the LAPB frame when issuing commands and responses from DTE to DCE and DCE to DTE using single link operation or multilink operation:

Major components of DCE within every cell are:

Modern DCE implementations such as IBM's are fully capable of interoperating with Kerberos as the security server, LDAP for the CDS and the Network Time Protocol implementations for the time server.

In addition, DCE / DFS also supports what are called " backup " filesets, which if defined for a fileset are capable of storing a version of the fileset as it was prior to the last replication.

If the soil and groundwater contain enough organic electron donor and the appropriate strains of Dehalococcoides, this process can proceed until all of the chlorine atoms are removed, and TCE is dechlorinated completely via ( DCE ) and vinyl chloride ( VC ) to ethene, a harmless end-product.

Systems such as DCE, CORBA and SOAP are generally used in this wider role.

This are some of the European Corps usually performing DCE:

Additions include support for Unicode strings, implicit handles, inheritance of interfaces ( which are extensively used in DCOM ), and complex calculations in the variable-length string and structure paradigms already present in DCE / RPC.

* between data " on and off " terminal equipment ( DTE ) and a switching center, via data circuit-terminating equipment ( DCE ), the opposite types interconnected straightforwardly,

* In case of RTS control flow, DTE sets its RTS, which signals the opposite end ( the slave end such as a DCE ) to begin monitoring its data input line.

In general and according to the standard, terminals and computers have male connectors with DTE pin functions, and modems have female connectors with DCE pin functions.

The CLI connector is an 8P8C ( RJ-45 ) female modular connector with a pinout similar to EIA / TIA-561 but crosslinked, swapping the DTE and DCE roles.

In addition to the data circuits, the standard defines a number of control circuits used to manage the connection between the DTE and DCE.

The DRS and its counter-espionage branch, DCE, assumed a leading role in the fight against the Islamist insurgency of the 1990s through a number of its own special forces units, as well as by establishing joint task force commands which assumed control over specialized military and police units.

The naming convention for transports that can be designed ( as architectural plugins ) and then made available to DCE / RPC echoes these origins, e. g. ncacn_np ( SMB Named Pipes transport ); ncacn_tcp ( DCE / RPC over TCP / IP ) and ncacn_http to name a small number.

The naming convention for transports that can be designed ( as architectural plugins ) and then made available to DCE / RPC echoes these origins, e. g. ncacn_np ( SMB Named Pipes transport ); ncacn_tcp ( DCE / RPC over TCP / IP ) and ncacn_http to name a small number.

Therefore, one side must be configured as a Layer 2 DTE and the other as a Layer 2 DCE ( you must not confuse this with the more familiar Layer 1 DCE and DTE designations ).

OSF and its projects eventually became part of The Open Group, which released DCE 1. 2. 2 under a free software license ( the LGPL ) on 12 January 2005.

* Entegrity Solutions licensed the OSF's entire DCE 1. 2. 2 source code and ported it to Win32, creating a product called PC / DCE-see http :// support. entegrity. com / private / pcdce32. asp

* DCE / RPC 1. 2. 2 source from The Open Group, released under the LGPL

* DCE / RPC 1. 2. 2 source released under the old license

In telecommunications, RS-232 is the traditional name for a series of standards for serial binary single-ended data and control signals connecting between a < span title =" Usually a controlling terminal or a computer "> DTE </ span > ( Data Terminal Equipment ) and a < span title =" Usually a modem or target device "> DCE </ span > ( Data Circuit-terminating Equipment ).

DCE / RPC utilises thread cancellation to propagate signals across the " Remote " of RPC, such that for example a client application terminating a thread results in its corresponding thread on the server also being terminated in the same way.

Each data or control circuit only operates in one direction, that is, signaling from a DTE to the attached DCE or the reverse.

Making this rewriting goal difficult is the fact that services were all developed manually through network reverse-engineering, with limited or no reference to DCE / RPC documentation.

# The contention that occurs when a terminal and data circuit-terminating equipment ( DCE ) specify the same channel at the same time to transfer a call request and handle an incoming call.

When call collision occurs, the DCE proceeds with the call request and cancels the incoming call.

# A data circuit-terminating equipment ( DCE ) supplied or approved by a common carrier that permits a DCE or data terminal equipment ( DTE ) to be attached to the common carrier network.

A data circuit-terminating equipment ( DCE ) is a device that sits between the data terminal equipment ( DTE ) and a data transmission circuit.

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.

The DCE is a device that communicates with a DTE device in these standards.

The X. 25 specification defines only the interface between a subscriber ( DTE ) and an X. 25 network ( DCE ).

* Physical layer: This layer specifies the physical, electrical, functional and procedural characteristics to control the physical link between a DTE and a DCE.