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Topic: Electronic switching system


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In the News (Wed 20 Feb 19)

  
  Time division multiplex highway switch control system and control method of T-S-T three-stage switches in electronic ...
However, since the ratio of the redundant structure portion in the electronic switching system is increased, this invention is not suitable for a large scaled switching system such as the T-S-T structure.
When the time sharing switch is used as the first switch, the input data 211 is received from a terminal as the time division multiplex input, while the output data 212 is supplied to the output highway connected with the second switch.
When the time sharing switch is used as the third switch, the input data 211 is received from the output highway of the second switch, while the output data 212 is supplied to a terminal as the time division multiplex output.
www.freepatentsonline.com /6470011.html   (4307 words)

  
 [No title]
These switches where designed to handle/distrobute analog signals, and used a new method of call handeling; Unlike the previous switches where each digit dialed would be proccessed one at a time, these new switches stored the dialed number in a register and then executed the dialed connection.
As the demand for phone services grew, the switching systems advanced into a newer breed of switching, it was this time that the famous 4/5ESS switches where born and have sinse been used as the workhorses for the phone network.
The switch was designed to handle digital signals, but at the time the local offices had to patch the older local loop equipment to it by ringing subscriber lines with a 9O volt AC current; Sinse the semiconnductors had a hard time dealing with this, the new breed of ESS was born -- 5ESS.
www.packetstormsecurity.org /landline_telephony/switches/swtchhst.txt   (966 words)

  
 Automatic telephone call distribution apparatus and method for electronic switching system - Patent 5432846
In general, the exchange of a switching system is coupled to a plurality of extensions comprised of telephone sets and office telephone lines.
Therefore, all operators in the switching system can not know the status of the held calls because they are not notified of such.
Thus the present capabilities of the switching system are inadequate with respect to the calling party.
www.freepatentsonline.com /5432846.html   (4742 words)

  
 Electronic and Information Technology Accessibility Standards (Section 508)
Systems which are critical to the direct fulfillment of military or intelligence missions do not include a system that is to be used for routine administrative and business applications (including payroll, finance, logistics, and personnel management applications).
Any equipment or interconnected system or subsystem of equipment, that is used in the automatic acquisition, storage, manipulation, management, movement, control, display, switching, interchange, transmission, or reception of data or information.
Applications also shall not disrupt or disable activated features of any operating system that are identified as accessibility features where the application programming interface for those accessibility features has been documented by the manufacturer of the operating system and is available to the product developer.
www.access-board.gov /sec508/standards.htm   (3283 words)

  
 ESS - Electronic Switching System, Enterprise Storage Server, Extended Service Set
ESS is a acronym that can contains many meanings which are listed below.
There may be many popular meanings for ESS with the most popular definition being that of Electronic Switching System, Enterprise Storage Server, Extended Service Set
Electronic Switching System is not the only word formed from ESS.
www.auditmypc.com /acronym/ESS.asp   (226 words)

  
 Electronic Switching Is 'In'. | Telecommunications from AllBusiness.com
GTE Automatic's Number One EAX was a common control telephone switching system that met the requirements for a medium to large and office and a combined end and toll office.
It could be used on a two-wire basis as a local switching system or on a four-wire basis as a toll switching system.
The 1 ESS was intended for metropolitan use to serve 10,000 to 65,000 lines, the 2 ESS was developed for smaller communities requiring 4,000 to 25,000 lines, and the 3 ESS with capacity of 600 to 4,500 lines, was intended for small towns and rural communities.
www.allbusiness.com /technology/telecommunications/100117-1.html   (1581 words)

  
 IEEE - H. Earle Vaughan, 1912 -
Vaughan was responsible for the planning and development of Bell Laboratories No. 4 Electronic Switching System (ESS) for long-distance telephone traffic, one of the largest and most complex undertakings in the history of the company.
This system, using solid-state devices, was based on a concept of integrated time-division switching and transmission.
In this position, he was responsible for system and software design for No. I ESS, the first major commercial electronic switching system, introduced into service in 1965.
www.ieee.org /web/aboutus/history_center/biography/vaughan.html   (622 words)

  
 Electronic switching system having call-forwarding function (EP0350918B1)
Disclosed is an electronic switching system having a call-forwarding function for effecting call forwarding between subscribers, wherein discrimination information is added to call forwarding data for respective subscriber terminals (A,B,C,D), the discrimination information indicating whether or not each of the subscriber terminals is already registered as an alternative destination from other subscriber terminals.
An electronic switching system having a call-forwarding function for effecting a call forward between subscribers, characterized by:
System and method for recording transactions using a chronological list superimposed on an indexed list
www.delphion.com /details?pn=EP00350918B1   (317 words)

  
 Spartanburg SC | GoUpstate.com | Spartanburg Herald-Journal
In telecommunications, an electronic switching system (ESS) is:
An electronic switching system digitizes analog signals from subscribers' loops, and interconnects them by assigning the digitized signals to the appropriate time slots.
A semi-electronic switching system that had reed relays or crossbar matrices for its talk paths, as well as semiconductor components, was also considered to be an ESS in the 20th Century.
www.goupstate.com /apps/pbcs.dll/section?category=NEWS&template=wiki&text=Electronic_Switching_System   (161 words)

  
  Definition: electronic switching system   (Site not responding. Last check: )
A telephone switching system based on the principles of time-division multiplexing of digitized analog signals.
A switching system with major devices constructed of semiconductor components.
Note: A semi-electronic switching system that has reed relays or crossbar matrices, as well as semiconductor components, is also considered to be an ESS.
glossary.its.bldrdoc.gov /fs-1037/dir-014/_1958.htm   (0 words)

  
  Electronic switching system
A telephone switching system based on the principles of time-division multiplexing of digitized analog signals.
An electronic switching system digitizes analog signals from subscribers' loops, and interconnects them by assigning the digitized signals to the appropriate time slots.
A semi-electronic switching system that has reed relays or crossbar matrices, as well as semiconductor components, is also considered to be an ESS.
www.teachtime.com /en/wikipedia/e/el/electronic_switching_system.html   (125 words)

  
 Definition: electronic switching system
A telephone switching system based on the principles of time-division multiplexing of digitized analog signals.
Note: An electronic switching system digitizes analog signals from subscribers' loops, and interconnects them by assigning the digitized signals to the appropriate time slots.
A switching system with major devices constructed of semiconductor components.
www.its.bldrdoc.gov /fs-1037/dir-014/_1958.htm   (97 words)

  
 Electronic Switching System Manufacturers & Suppliers   (Site not responding. Last check: )
Circuit-switching Systems with 24-port Fiber optic VF-45 and Multimode Duplex Port
Switching is done via the IR remote that is provided with the unit.
The featured China Electronic Switching System manufacturers and featured Taiwan Electronic Switching System manufacturers listed here are sourced by the Global Sources team of industry experts.
www.globalsources.com /manufacturers/Electronic-Switching-System.html   (584 words)

  
 TelecomCareers.Net - Dictionary S   (Site not responding. Last check: )
In an electronic switching office, a device that scans various parts of the switching network to determine when some change in operations is occurring.
Equipment in a switching system used to transmit and/or receive the called number to or from a distant office; a sender is usually arranged to transmit on a multi-frequency or dial pulse basis.
The sequence of switches which are involved in the completion of a circuit path from an originating station to a destination station.
www.telecomcareers.net /resources/dictionary/diction_s.htm   (1943 words)

  
 About Maron Electronic Switching Systems
Maron Electronic Switching Systems, Inc., a leading voice and data communications company known in the Midwest for outstanding full-service capabilities and a prestigious client list, has been setting industry-wide for more than 20 years.
Electronic Switching System’s pioneering vision as one of the firs companies to make its mark in the industry.
Maron ESS professionals are masters in the technology of networks and structured wiring systems for telephone and data.
www.maroness.com /html/about.htm   (176 words)

  
 TC G-System Guitar effects - TC Electronic
By pressing and holding the "tuner" switch the outputs will mute and even more precise tuner information will be displayed in the LED matrix.
The boost function makes your 'fill' or solo stand at the flick of a switch, all tempo based effects can be individually controlled by tap tempo or MIDI clock, and numerous parameters are under expression pedal control.
G-System features amp channel switching facilities via relays, a boost function applicable to any preset for those important licks, 4 mono loops for drive pedals and 1 insert loop for your preamp, and more than 25 onboard effects.
www.rmcaudio.com /tc_electronics/g-system.htm   (1220 words)

  
 Telephone World - Western Electric (Lucent) Modern Switching Systems
Electronic Switching Systems were made possible by the invention of the transistor.
This switch, the #4ESS, was the replacement for the large numbers of #4A Crossbar tandem switches that were in use at the time.
It is a digital time-division electronic switching system designed for modular growth to accommodate local offices ranging from 1,000 to 100,000 lines.
www.dmine.com /phworld/switch/weess.htm   (1543 words)

  
 McGraw-Hill AccessScience: Switching systems (communications)   (Site not responding. Last check: )
he assemblies of switching and control devices provided so that any station in a communications system may be connected as desired with any other station.
To enable the transmission facilities to be shared, stations are connected to and reached through switching system nodes that are part of most telecommunications networks.
Switching systems act under built-in control to direct messages toward their ultimate destination or address.
www.accessscience.com /Encyclopedia/6/67/Est_673000_frameset.html?doi   (166 words)

  
 [No title]   (Site not responding. Last check: )
ESS should be well known to many a technical enthusiast.
How ESS works and what it is capable of has been covered previously in 2600 (February, 1984) and will be covered in future issues.
It may be recalled that such a system was the specific end in view when the project that had culminated in the invention of the transistor had been launched back in the 1930's.
www.hackcanada.com /ice3/2600/2600_02-11_p74.txt   (506 words)

  
 Philadelphia Police Department :: 800 MHz Trunked Radio System
When an officer wants to transmit, a trunked system simply looks at which frequency is unused and quickly assigns it to the officer for the duration of the transmission.
Basically, trunked radio is method of making a group of radio channels available to several different groups through an electronic switching system that is controlled by a computer.
Instead, each mobile radio in the system is assigned a "talk group," which is simply a programmable, internal identification that is transmitted each time the radio begins a broadcast.
www.ppdonline.org /ops/ops_tech_800.php   (1168 words)

  
 [No title]
The term is more often used to refer to the telco building itself in which a switching system is located and to include other equipment (such as transmission system terminals) that may be located in such a building.
The switching systems may be shared by several private networks and also may be shared with the public telephone network.
A crossbar switch is a relay mechanism consisting of 10 horizontal paths and 10 or 20 vertical paths.
www.cultdeadcow.com /cDc_files/cDc-0028.txt   (2959 words)

  
 The Scientist : People: Septuagenarian Scientists To Receive 1989 Kyoto Prizes
This system made possible the automatic announcement of telephone number changes and the continuity of cellular phone connections for cars traveling long distances.
In addition to his own research on electronic switching, Joel encouraged an international exchange and diffusion of research on switching technology, proposing the establishment of the International Switching Symposium (ISS).
Switching," was honored in 1987 as the "father of ISS."
www.the-scientist.com /article/display/9505   (442 words)

  
 Atlanta Telephone History
The system eventually came to be used on nearly all interoffice trunks, including rather short ones.
In 1971, a new electronic system began to replace the cord switchboards used by long distance operators.
The TSPS system is based on a switching machine located in a toll switching center and operator consoles located remotely in other parts of the city.
home.speedfactory.net /cardwell/part4.html   (5060 words)

  
 PLoP Patterns, 1995
Many switching systems, including the ones referred to in these patterns are designed to be in continuous operation with the requirement that they be out of service no more than two hours in forty years.
System integrity must be alert to watch for failures during both bootstrap and normal base level operation.
There is a system integrity monitor in the base level to watch timers as well as overload control and audit control (not to run audits, but to ask audits if there are error conditions).
users.rcn.com /jcoplien/Patterns/PLoP95_telecom.html   (3555 words)

  
 The Tech - Volume 105, Issue 29
The new system would be installed in the summer of 1987 at the earliest.
The decision to buy the new switch was prompted by concern about the "constant escalation of [Centrex] prices," desire for a state-of-the-art system, and concern about the deterioration of Dormline, according to Berlan.
Because extensive construction is necessary, the new switching system cannot be installed during the term.
www-tech.mit.edu /V105/N29/attn.29n.html   (1084 words)

  
 ESS1 & 1A Switching Systems   (Site not responding. Last check: )
The principle is simple, you have a switching system that is controlled by simple electronics and stored computer programs.
The ESS system is a class 5(End Office) system, and has some spinoffs (like the No.
The 1A processor is used for a number of ESS systems, but most specifically is used for the following: o To control the 4 ESS switch.
morehouse.org /hin/ess/ess01.htm   (423 words)

  
 Science fiction becomes fact: Bell Labs----ii770309
The parent company of the entire system is the ATandT corporation, which is often called "Ma Bell." (ATandT is a direct descendant of the partnership which paid for A. Bell's research.) ATandT has 23 Bell Telephone operating companies throughout the United States of which Illinois Bell is one.
Simply put, the ESS is composed of a computerized brain and a switching system which carries out the orders of that brain.
Number 4 ESS was designed for long distance calls, and it can automatically handle up to 550,000 long distance calls per hour, which is about 150 per second.
www.lib.niu.edu /ipo/1977/ii770309.html   (2300 words)

  
 C:\BELLBOOK\P001-100\HTMFILES\CSP0475.HTM
For example, when a fault occurs in a system, few calls in progress may be handled incorrectly during the recovery process.
To establish an ultrareliable switching environment, redundancy of system components and duplication of the processor itself has been the approach taken to compensate for potential machine faults.
Field experience indicates that system outages due to the processor may be assigned to one of four categories shown in Fig.
research.microsoft.com /~gbell/computer_structures_principles_and_examples/csp0475.htm   (577 words)

  
 5ESS Switch at AllExperts
The 5ESS Switch is the class 5 electronic switching system sold by Lucent Technologies (formerly a division of AT&T, historically known as Western Electric, or WECO).
The 5ESS Switch is the digital central office circuit switching system many communication service providers use.
It's one of the faster switches, and is used in a fair portion of the US.
en.allexperts.com /e/0/5ess_switch.htm   (194 words)

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