Get it on Google Play
New! Download Unionpedia on your Androidâ„¢ device!
Faster access than browser!
New! Save your stuff! » Create account

The 5ESS Switch is a Class 5 telephone electronic switching system developed by Western Electric and now sold by Western Electric's descendant, Alcatel-Lucent. [1]

58 relations: Alcatel-Lucent, Analogue electronics, AT&T Corporation, Bell System Practices, Bit, Business telephone system, Central processing unit, Circuit switching, Class-4 telephone switch, Class-5 telephone switch, Codec, Command-line interface, Common-network interface ring, Computer memory, Digital Audio Tape, Digital data, Digital Signal 0, Digital Signal 1, Digital Signal 3, Distributed computing, Distributed switching, DMS-100, Electronic switching system, Integrated Services Digital Network, Intel 8086, Limited availability, Line card, Magnetic tape data storage, Mainframe computer, Makefile, Microprocessor, Motorola 68000, Multi-Environment Real-Time, Multi-mode optical fiber, Nortel, Provisioning, PRX (telephony), Recent change memory administration center, SCSI, Seneca, Illinois, Service provider, Signaling (telecommunications), Storage Module Device, Subscriber loop carrier, Sun Microsystems, Switching Control Center System, Synchronous optical networking, System console, T-carrier, Telecommunication, ..., Telephone exchange, Telephone numbering plan, Teleprinter, Time-slot interchange, Western Electric, 1ESS switch, 3B series computers, 4ESS switch. Expand index (8 more) »


Alcatel-Lucent S.A. is a French global telecommunications equipment company, headquartered in Boulogne-Billancourt, France.

New!!: 5ESS switch and Alcatel-Lucent · See more »

Analogue electronics

Analogue electronics (or analog in American English) are electronic systems with a continuously variable signal, in contrast to digital electronics where signals usually take only two levels.

New!!: 5ESS switch and Analogue electronics · See more »

AT&T Corporation

AT&T Corp., originally the American Telephone and Telegraph Company, is the subsidiary of AT&T that provides voice, video, data, and Internet telecommunications and professional services to businesses, consumers, and government agencies.

New!!: 5ESS switch and AT&T Corporation · See more »

Bell System Practices

The Bell System Practices was a compilation of technical publications which described the best methods of engineering, constructing, installing, and maintaining the telephone plant of the Bell System under direction of AT&T and Bell Telephone Laboratories.

New!!: 5ESS switch and Bell System Practices · See more »


A bit is the basic unit of information in computing and digital communications.

New!!: 5ESS switch and Bit · See more »

Business telephone system

A business telephone system is a multiline telephone system typically used in business environments, encompassing systems ranging from small key telephone systems to large-scale private branch exchanges.

New!!: 5ESS switch and Business telephone system · See more »

Central processing unit

A central processing unit (CPU) is the electronic circuitry within a computer that carries out the instructions of a computer program by performing the basic arithmetic, logical, control and input/output (I/O) operations specified by the instructions.

New!!: 5ESS switch and Central processing unit · See more »

Circuit switching

Circuit switching is a methodology of implementing a telecommunications network in which two network nodes establish a dedicated communications channel (circuit) through the network before the nodes may communicate.

New!!: 5ESS switch and Circuit switching · See more »

Class-4 telephone switch

A class-4, or tandem, telephone switch is a U.S. telephone company central office telephone exchange used to interconnect local exchange carrier offices for long distance communications in the public switched telephone network.

New!!: 5ESS switch and Class-4 telephone switch · See more »

Class-5 telephone switch

A class-5 telephone switch is a telephone switch or telephone exchange in the public switched telephone network located at the local telephone company's central office, directly serving subscribers.

New!!: 5ESS switch and Class-5 telephone switch · See more »


A codec is a device or computer program capable of encoding or decoding a digital data stream or signal.

New!!: 5ESS switch and Codec · See more »

Command-line interface

A command-line interface or command language interpreter (CLI), also known as command-line user interface, console user interface, and character user interface (CUI), is a means of interacting with a computer program where the user (or client) issues commands to the program in the form of successive lines of text (command lines).

New!!: 5ESS switch and Command-line interface · See more »

Common-network interface ring

The common-network interface ring (CNI ring) provides common-channel signaling (CCS) functionality on several Alcatel-Lucent SS7 products.

New!!: 5ESS switch and Common-network interface ring · See more »

Computer memory

In computing, memory refers to the computer hardware devices used to store information for immediate use in a computer; it is synonymous with the term "primary storage".

New!!: 5ESS switch and Computer memory · See more »

Digital Audio Tape

Digital Audio Tape (DAT or R-DAT) is a signal recording and playback medium developed by Sony and introduced in 1987.

New!!: 5ESS switch and Digital Audio Tape · See more »

Digital data

Digital data, in information theory and information systems, are discrete, discontinuous representations of information or works, as contrasted with continuous, or analog signals which behave in a continuous manner, or represent information using a continuous function.

New!!: 5ESS switch and Digital data · See more »

Digital Signal 0

Digital Signal 0 (DS0) is a basic digital signaling rate of 64 kilobits per second (kbit/s), corresponding to the capacity of one analog voice-frequency-equivalent channel.

New!!: 5ESS switch and Digital Signal 0 · See more »

Digital Signal 1

Digital Signal 1 (DS1, sometimes DS-1) is a T-carrier signaling scheme devised by Bell Labs.

New!!: 5ESS switch and Digital Signal 1 · See more »

Digital Signal 3

A Digital Signal 3 (DS3) is a digital signal level 3 T-carrier.

New!!: 5ESS switch and Digital Signal 3 · See more »

Distributed computing

Distributed computing is a field of computer science that studies distributed systems.

New!!: 5ESS switch and Distributed computing · See more »

Distributed switching

Distributed switching is an architecture in which multiple processor-controlled switching units are distributed.

New!!: 5ESS switch and Distributed switching · See more »


The DMS-100 Switch Digital Multiplex System (DMS) was a line of telephone exchange switches manufactured by Northern Telecom.

New!!: 5ESS switch and DMS-100 · See more »

Electronic switching system

In telecommunications, an electronic switching system (ESS) is a telephone switch that uses digital electronics and computerized control to interconnect telephone circuits for the purpose of establishing telephone calls.

New!!: 5ESS switch and Electronic switching system · See more »

Integrated Services Digital Network

Integrated Services for Digital Network (ISDN) is a set of communication standards for simultaneous digital transmission of voice, video, data, and other network services over the traditional circuits of the public switched telephone network.

New!!: 5ESS switch and Integrated Services Digital Network · See more »

Intel 8086

The 8086 ("eighty eighty-six", also called iAPX 86) (page 1-1) is a 16-bit microprocessor chip designed by Intel between early 1976 and mid-1978, when it was released.

New!!: 5ESS switch and Intel 8086 · See more »

Limited availability

When customers of a public switched telephone network make telephone calls, they utilize a telecommunications network called a switched-circuit network.

New!!: 5ESS switch and Limited availability · See more »

Line card

A line card or digital line card is a modular electronic circuit designed to fit on separate a printed circuit board (PCB) and interface with a telecommunications access network.

New!!: 5ESS switch and Line card · See more »

Magnetic tape data storage

Magnetic tape data storage is a system for storing digital information on magnetic tape using digital recording.

New!!: 5ESS switch and Magnetic tape data storage · See more »

Mainframe computer

Mainframe computers (colloquially referred to as "big iron") are computers used primarily by large organizations for critical applications, bulk data processing such as census, industry and consumer statistics, enterprise resource planning and transaction processing.

New!!: 5ESS switch and Mainframe computer · See more »


Makefile(s) are text files written in a certain prescribed syntax.

New!!: 5ESS switch and Makefile · See more »


A microprocessor is a computer processor that incorporates the functions of a computer's central processing unit (CPU) on a single integrated circuit (IC), or at most a few integrated circuits.

New!!: 5ESS switch and Microprocessor · See more »

Motorola 68000

The Motorola 68000 ("'sixty-eight-thousand'"; also called the m68k or Motorola 68k, "sixty-eight-kay") is a 16/32-bit CISC microprocessor core designed and marketed by Motorola Semiconductor Products Sector (now Freescale Semiconductor).

New!!: 5ESS switch and Motorola 68000 · See more »

Multi-Environment Real-Time

Multi-Environment Real-Time (MERT) was a hybrid time-sharing/real-time operating system developed in the 1970s at Bell Labs for use in embedded minicomputers (in particular PDP-11s).

New!!: 5ESS switch and Multi-Environment Real-Time · See more »

Multi-mode optical fiber

Multi-mode optical fiber is a type of optical fiber mostly used for communication over short distances, such as within a building or on a campus.

New!!: 5ESS switch and Multi-mode optical fiber · See more »


Nortel Networks Corporation, formerly known as Northern Telecom Limited, Northern Electric and sometimes known simply as Nortel, was a multinational telecommunications and data networking equipment manufacturer headquartered in Mississauga, Ontario, Canada.

New!!: 5ESS switch and Nortel · See more »


In telecommunication, provisioning involves the process of preparing and equipping a network to allow it to provide (new) services to its users.

New!!: 5ESS switch and Provisioning · See more »

PRX (telephony)

The PRX205 (PRX/A) is a processor controlled reed relay telephone exchange developed by Philips Telecommunicatie Industrie BV (PTI) in Hilversum during the late 1960s and early 1970s.

New!!: 5ESS switch and PRX (telephony) · See more »

Recent change memory administration center

RCMAC stands for recent change memory administration center, sometimes mistakenly called recent change message accounting center, in late 20th century Bell System parlance, or recent change memory administration group (RCMAG).

New!!: 5ESS switch and Recent change memory administration center · See more »


Small Computer System Interface (SCSI) is a set of standards for physically connecting and transferring data between computers and peripheral devices.

New!!: 5ESS switch and SCSI · See more »

Seneca, Illinois

Seneca is a village in LaSalle and Grundy counties in the U.S. state of Illinois.

New!!: 5ESS switch and Seneca, Illinois · See more »

Service provider

A service provider (SP) is a company that provides organizations with consulting, legal, real estate, education, communications, storage, processing, and many other services.

New!!: 5ESS switch and Service provider · See more »

Signaling (telecommunications)

In telecommunication, signaling (signalling in British English) has the following meanings.

New!!: 5ESS switch and Signaling (telecommunications) · See more »

Storage Module Device

Storage Module Device (SMD) was a family of storage devices (hard disk drives) first shipped by Control Data Corporation in December 1973 as the CDC 9760 40 MB (unformatted) storage module disk drive.

New!!: 5ESS switch and Storage Module Device · See more »

Subscriber loop carrier

A subscriber loop carrier or subscriber line carrier (SLC) provides telephone exchange-like telephone interface functionality.

New!!: 5ESS switch and Subscriber loop carrier · See more »

Sun Microsystems

Sun Microsystems, Inc. was a company that sold:computers, computer components,:computer software, and:information technology services and that created the Java programming language, Solaris Unix and the Network File System (NFS).

New!!: 5ESS switch and Sun Microsystems · See more »

Switching Control Center System

The Switching Control Center System was an Operations Support System developed by Bell Laboratories and deployed during the early 1970s.

New!!: 5ESS switch and Switching Control Center System · See more »

Synchronous optical networking

Synchronous Optical Networking (SONET) and Synchronous Digital Hierarchy (SDH) are standardized protocols that transfer multiple digital bit streams synchronously over optical fiber using lasers or highly coherent light from light-emitting diodes (LEDs).

New!!: 5ESS switch and Synchronous optical networking · See more »

System console

The system console, computer console, root console, operator's console, or simply console is the text entry and display device for system administration messages, particularly those from the BIOS or boot loader, the kernel, from the init system and from the system logger.

New!!: 5ESS switch and System console · See more »


The T-carrier is a member of the series of carrier systems developed by AT&T Bell Laboratories for digital transmission of multiplexed telephone calls.

New!!: 5ESS switch and T-carrier · See more »


Telecommunication occurs when the exchange of information between two or more entities (communication) includes the use of technology.

New!!: 5ESS switch and Telecommunication · See more »

Telephone exchange

A telephone exchange is a telecommunications system used in the public switched telephone network or in large enterprises.

New!!: 5ESS switch and Telephone exchange · See more »

Telephone numbering plan

A telephone numbering plan is a type of numbering scheme used in telecommunication to assign telephone numbers to subscriber telephones or other telephony endpoints.

New!!: 5ESS switch and Telephone numbering plan · See more »


A teleprinter (teletypewriter, Teletype or TTY) is an electromechanical typewriter that can be used to send and receive typed messages from point to point and point to multipoint over various types of communications channels.

New!!: 5ESS switch and Teleprinter · See more »

Time-slot interchange

A time-slot interchange (TSI) switch is a network switch that stores data in RAM in one sequence, and reads it out in a different sequence.

New!!: 5ESS switch and Time-slot interchange · See more »

Western Electric

Western Electric Company (WE, WECo) was an American electrical engineering and manufacturing company, the supplier to AT&T from 1881 to 1996.

New!!: 5ESS switch and Western Electric · See more »

1ESS switch

The Number One Electronic Switching System (1ESS) was the first large-scale stored program control (SPC) telephone exchange or electronic switching system in the Bell System.

New!!: 5ESS switch and 1ESS switch · See more »

3B series computers

The 3B series computers were a line of micro-programmable minicomputers produced by AT&T Computer Systems's Western Electric subsidiary.

New!!: 5ESS switch and 3B series computers · See more »

4ESS switch

The 4ESS switch is a Class 4 telephone electronic switching system that was the first digital electronic toll switch introduced by Western Electric for long-distance switching.

New!!: 5ESS switch and 4ESS switch · See more »

Redirects here:

5ESS, 5ESS Switch, 5ess switch.


[1] https://en.wikipedia.org/wiki/5ESS_switch

Hey! We are on Facebook now! »