Difference between revisions of "Subrack"

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* before the development of fast bias cards, in each subrack, one bias card was often replaced with a biasing [[address card]] ([[BAC]]), to allow for fast SQ2 switching.  Modern bias cards can now perform fast switching and the BAC option is now obsolete.
 
* before the development of fast bias cards, in each subrack, one bias card was often replaced with a biasing [[address card]] ([[BAC]]), to allow for fast SQ2 switching.  Modern bias cards can now perform fast switching and the BAC option is now obsolete.
 
* the 72-HP subrack also has space for a power supply (PSA) which is now obsolete and no longer installed.  See [[MCE Power Requirements]] for current subrack power options
 
* the 72-HP subrack also has space for a power supply (PSA) which is now obsolete and no longer installed.  See [[MCE Power Requirements]] for current subrack power options
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== Dimensions and Weight ==
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* A fully populated 3-MDM MCE weighs 9.5 kg
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* Dimensions for a 48-HP MCE: ~ 40cm x 31cm x 34cm (L x W x H)
  
 
== Other information ==
 
== Other information ==

Revision as of 12:53, 15 November 2012

Template:Hierarchy header Two types of MCE subracks are in production:

  • a large (72-HP) subrack containing 5 MDM connectors and four read-out cards.
  • a small (48-HP) subrack containing 3 MDM connectors and two read-out cards.

An intermediate sized 60-HP subrack was also prototyped but not produced in large numbers. Functionally it is equivalent to the modern 48-HP subrack.

Components

A fully-kitted subrack contains:

It also contains the following which are generally not "user-replaceable":

Notes
  • before the development of fast bias cards, in each subrack, one bias card was often replaced with a biasing address card (BAC), to allow for fast SQ2 switching. Modern bias cards can now perform fast switching and the BAC option is now obsolete.
  • the 72-HP subrack also has space for a power supply (PSA) which is now obsolete and no longer installed. See MCE Power Requirements for current subrack power options

Dimensions and Weight

  • A fully populated 3-MDM MCE weighs 9.5 kg
  • Dimensions for a 48-HP MCE: ~ 40cm x 31cm x 34cm (L x W x H)

Other information