Siemens DCO

Siemens DCO

Siemens DCO (Digital Central Office) was introduced in 1977 by Stromberg-Carlson. The Stromberg-Carlson DCO was the first Class-5 digital local office switching system installed in the USA. Stromberg-Carlson put their switch into service in July 1977 in Richmond Hill, Georgia.

The DCO came as DCO-SE (Digital Central Office - Small Exchange) for line side Central Office operation and the DCO-CS (DCO-Carrier Switch) for Long Distance carrier services. There were a few DCO's created for the cellular phone networks, but this was very limited.

In 1990 Siemens purchased Stromberg Carlson and moved its EWSD production to the Lake Mary, Florida production facility in 1991. In the next few years Siemens slowly phased out the DCO as a line side central office switch. The DCO-CS was continued through the 1990s to support regional LD companies. The DCO-CS was small on port capacity (just under 10,000), but was robust on features, more than most other carrier switches.

As the 1990s came to a close, many regional long distance companies were being bought up, or going out of business as their profitability had diminished. This also brought an end to DCO production as Siemens-Stromberg Carlson focused on marketing the EWSD.

In 2006 the entire Siemens DCO line was sold to GENBAND, an IMS company from Texas, USA. [cite news | author=Paula Bernier | title= GENBAND Acquires Technologies, DCO Product Line From Siemens Networks | url=http://www.xchangemag.com/articles/529/6ah41135329321.html | date=2006-10-04]

References

External links

* [http://www.icn.siemens.com/carrier/products/switching/dco.html Siemens DCO Homepage]


Wikimedia Foundation. 2010.

Игры ⚽ Нужно сделать НИР?

Look at other dictionaries:

  • DCO — may refer to: Technology Device configuration overlay, of a computer hard disk drive Digitally controlled oscillator, in synthesizers Siemens DCO, a telephone switch Drift City Online, a game Dispersed Crude Oil mixture of dispersant and crude… …   Wikipedia

  • Stromberg-Carlson — This article is about Stromberg Carlson, the American telephone equipment manufacturing company. For the phone phreak with a similar name, see Strom Carlson. Stromberg Carlson was a telecommunications equipment manufacturing company formed in… …   Wikipedia

  • Crossbar switch — In electronics, a crossbar switch (also known as cross point switch, crosspoint switch, or matrix switch) is a switch connecting multiple inputs to multiple outputs in a matrix manner. Originally the term was used literally, for a matrix switch… …   Wikipedia

  • DMS-100 — A DMS 100, in a CO located in France The DMS 100 Switch is a line of Digital Multiplex System (DMS) telephone exchange switches manufactured by Nortel Networks. The purpose of the DMS 100 Switch is to provide local service and connections to the… …   Wikipedia

  • Number Five Crossbar Switching System — The Number Five Crossbar Switching System or 5XB switch, designed by Bell Labs and made by Western Electric, was in use in Bell System telephone exchanges from 1948 to the 1980s. Its principal use was as a Class 5 telephone switch, though… …   Wikipedia

  • Number One Crossbar Switching System — The Number One Crossbar Switching System, or 1XB switch, was the primary urban local telephone exchange design used by the Bell System in the mid 20th century. Its switch fabric topology was based on the earlier urban panel switch system, which,… …   Wikipedia

  • 1ESS switch — The Number One Electronic Switching System, the first large scale Stored Program Control (SPC) telephone exchange or Electronic Switching System in the Bell System, was introduced in Succasunna, New Jersey, in May 1965[1]. The switching fabric… …   Wikipedia

  • List of telephone switches — This is intended to be a list of the more common central office (telephone company operated) telephone switches. This list is nowhere near complete. Many British and non North American switches are missing.AGCS*GTD 5 EAXAlcatel*E10 Five *E10B… …   Wikipedia

  • Ozone —  Pour l’article homophone, voir O Zone. Ozone …   Wikipédia en Français

  • Synthesizer — Sỵn|the|si|zer 〈[ saızə(r)] m. 3; Mus.〉 Gerät zur Erzeugung verschiedenartiger, künstlicher Töne mittels elektronischer Schaltungen, das in fast allen neuen Musikstilen der 1980er u. 1990er Jahre Anwendung findet [zu engl. synthesize „verbinden …   Universal-Lexikon

Share the article and excerpts

Direct link
… Do a right-click on the link above
and select “Copy Link”