Racks

Murrough Landon - 8 November 2001

http://www.hep.ph.qmul.ac.uk/~landon/talks

Overview

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• Developments since Mainz
• Information given to Chris Parkman
• Outstanding issues

Developments since Mainz

Not much!

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• The wall really is a wall!
• Layout proposed at Mainz given to Chris Parkman
• No changes to my diagrams...
• ...but Bill Cleland wants an extra rack for signal monitoring equipment

Information given to Chris Parkman (1)

Racks

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• New layout of racks (still subject to change) 0pt 0pt 0pt
  • 1 run of 14 racks: all used by calo trigger
  • 1 run of 9 racks: two used by calo trigger, remainder still reserved for level 1
• Contents of each rack: crates, cabling, etc 0pt 0pt 0pt
  • 8 Receiver/PP racks: 2 9U crates + 10U for cabling
  • 1 rack reserved for possible extra TileCal receivers
  • 3 CP/JEP racks: 2 9U crates + reserved 1 6U crate
  • 1 TTC/ROD rack: 2 9U crates + 1 6U crate
  • 1 rack for computers, network switch, etc

Information given to Chris Parkman (2)

Cables

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• No further information on cables provided yet
• Chris wants to know details about all our cables: type of cable, number of cables, expected route, etc
• LAr signals cables are in his database
• But no information yet on TileCal cables
• And no information yet on internal cables in USA15
• We probably need to reserved underfloor cable trays
• We now want to use the central and one side hole through the sheilding wall. But centre hole currently foreseen for the magnet cables.

Outstanding Issues

Racks

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• Layout of PP and receiver crates?
• Do we need more than two TileCal receiver crates?

Cables

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• Need to move on TileCal cables!
• Internal USA15 cable lengths and latency calculations depend on chosen layout for receiver and PP systems