Difference between revisions of "Eurocard"

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'''Eurocard''' is a European standard format for PCB cards, which can be plugged together into a standardized [[19-inch rack|subrack]]. The subrack consists of a series of slotted card guides on the top and bottom, into which the cards are slid so they stand on end, like books on a shelf. At the "back" of each card is one or more connectors, which plug into mating connectors on a [[backplane]] in the rear of the subrack.  
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[[File:IMS001b.jpg|thumb|right|300px|The 1979 Philips IMS 2650 Eurocard computer system.]]'''Eurocard''' is a European standard format for [[PCB]]s, which can be plugged into a standardized subrack. The subrack consists of a series of slotted card guides on the top and bottom, into which the cards are slid so they stand on end, like books on a shelf. At the "back" of each card are one or more [https://en.wikipedia.org/wiki/DIN_41612 DIN 41612 connectors], which plug into mating connectors on a [[backplane]] in the rear of the subrack.<ref name="wie">[http://www.peakservo.com/products/what-is-a-eurocard/ What is a Eurocard?]</ref>
  
The Eurocard standard is also the basis of the [[Eurorack]] format for modular synthesizers, popularized by [[Doepfer]] and other manufacturers.
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The format does not define specific connectors to be used nor the signals that are assigned to connector contacts.<ref name="wie" />
  
==Dimensions==
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The format is in widespread use in many industries,<ref name="wie" />.
The Eurocard height starts at 3U, i.e. 100 millimetres (3.937 in) and increments by 5.25 inches (133.350 mm) increments. This arrangement allows two 3U Eurocards to be supported properly next to a 6U high (233.35 millimetres (9.187 in)) Eurocard. The 33.35 millimetres (1.313 in) space is required for the card guide structure that would be between the two 3U high cards.
 
  
Eurocards come in depths that start at 100 millimetres (3.937 in) and then increase in 60 millimetres (2.362 in) increments. The 160 millimetres (6.299 in) depth is the most common today, however standard hardware is available to accommodate depths of 100 millimetres (3.937 in), 160 millimetres (6.299 in), 220 millimetres (8.661 in), 280 millimetres (11.024 in), 340 millimetres (13.386 in), and 400 millimetres (15.748 in).
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== Dimensions ==
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The Eurocard height is specified in U (for [[19-inch rack|rack unit]]), with 1 U being 1.75 inches. In practice heights are commonly 3U or 6U.<ref name="wie" />
  
==See also==
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Eurocards come in depths that start at 100&nbsp;mm and then increase in 60&nbsp;mm increments. The 160 millimetres depth is the most common today, followed by 220&nbsp;mm. However standard hardware is available to accommodate depths from 100&nbsp;mm to 400&nbsp;mm.<ref name="wie" />
[[Panels]]
 
  
==References==
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A single size eurocard is 100&nbsp;mm x 160&nbsp;mm (3U) and double size eurocard is 233.35mm x 160&nbsp;mm (6U).<ref name="wie" /> The extra 33.35mm allows two 3U Eurocards to be supported properly next to one 6U high, with the width taken up by a card guide between the two 3U cards.
*[http://en.wikipedia.org/wiki/Eurocard_(printed_circuit_board) Eurocard] article on Wikipedia
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EuroCard uses 2.5mm mounting screws.
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== As the basis of the Eurorack format ==
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[[File:Acorn System 3.jpg|thumb|right|300px|[https://en.wikipedia.org/wiki/Acorn_Eurocard_systems Acorn Computers' Eurocard modular microcomputer system] based on rack-mounted Eurocards.]]
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In the late 1970s before [[Eurorack]], there were a few synthesizer systems based on the industrial Eurocard frames:
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* [[Elektor Formant]] - 3u or 6u x 7HP, 3.5mm jacks, 31 pin bus, +/-15v
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* [[BME PM10]] and [[BME Axiom|Axiom]] - 3u x 8HP, phono/rca jacks, 31 pin bus, +/-15v
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* [[Synton 3000]] - 3u x 8HP, 4mm [[connectors|banana jacks]], +/-15v, similar format but constructed more like a modern Eurorack synth.
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By the late 1980s, these had all ceased production.
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[[Dieter Döpfer]] built some Formant modules before producing his own systems. His polyphonic non-patchable Voice Modular System (VMS) from the early 1980s was a Eurocard based modular synth.<ref>[https://www.soundonsound.com/people/modular-profile-dieter-doepfer Modular Profile: Dieter Doepfer - The Father Of Eurorack] by Paul Nagle, SOS, April 2017</ref><ref>[https://www.matrixsynth.com/2015/03/vintage-doepfer-vms-voice-modular.html Vintage Doepfer VMS - Voice Modular System for Auction], Matrixsynth 27 March 2015</ref>
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== See also ==
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[[Panels (homebrew)|Panels]]
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== References ==
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{{reflist}}
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== External links ==
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* [http://en.wikipedia.org/wiki/Eurocard_(printed_circuit_board) Eurocard] article on Wikipedia
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[[Category:PCB]]

Latest revision as of 17:07, 6 November 2018

The 1979 Philips IMS 2650 Eurocard computer system.

Eurocard is a European standard format for PCBs, which can be plugged into a standardized subrack. The subrack consists of a series of slotted card guides on the top and bottom, into which the cards are slid so they stand on end, like books on a shelf. At the "back" of each card are one or more DIN 41612 connectors, which plug into mating connectors on a backplane in the rear of the subrack.[1]

The format does not define specific connectors to be used nor the signals that are assigned to connector contacts.[1]

The format is in widespread use in many industries,[1].

Dimensions

The Eurocard height is specified in U (for rack unit), with 1 U being 1.75 inches. In practice heights are commonly 3U or 6U.[1]

Eurocards come in depths that start at 100 mm and then increase in 60 mm increments. The 160 millimetres depth is the most common today, followed by 220 mm. However standard hardware is available to accommodate depths from 100 mm to 400 mm.[1]

A single size eurocard is 100 mm x 160 mm (3U) and double size eurocard is 233.35mm x 160 mm (6U).[1] The extra 33.35mm allows two 3U Eurocards to be supported properly next to one 6U high, with the width taken up by a card guide between the two 3U cards.

EuroCard uses 2.5mm mounting screws.

As the basis of the Eurorack format

In the late 1970s before Eurorack, there were a few synthesizer systems based on the industrial Eurocard frames:

By the late 1980s, these had all ceased production.

Dieter Döpfer built some Formant modules before producing his own systems. His polyphonic non-patchable Voice Modular System (VMS) from the early 1980s was a Eurocard based modular synth.[2][3]

See also

Panels

References

External links