TWiki> LHCb Web>LHCbCalo>LHCbElectronicsStatus (revision 2)EditAttachPDF

Calorimeter Electronics Status


Below are compiled useful information addressing the current status of the calorimeter Electronics during the installation and the commissioning phase toward the final setup. The expected final readout setup is described here
and is summarized in the dedicated LHCbCaloReadout wiki page.



ECAL/HCAL

FEB

  • Side C

  • Side A

CROC

  • Side C
ECAL_8 impossible to have any ECS communication with the FEBs. No test performed with this CROC. Problem had been already seen with 2 different CROC v2 (backplane, SPECS bus problem, A board affecting the SPECS bus, reset bus ???)
ECAL_9 OK
ECAL_10 Data are dubious for several FEBs in synchronisation test. Noise tests are fine with usual time settings. CROC_28 has been replaced by CROC_24 in this crate. Still the synchronisation is dubious although the Noise test is fine. We observe that the board in slot 18 has a different Synchronisation plot from the others : the plot is shifted downward of at least 4ns. We never observed that at LAL or on the other crates. CROC_24 left in this crate
ECAL_11 board in slot 2 does not work properly. Board/Slot problem ??? This had been seen with CROC v2. Test of the CROC v4 was done by masking this board -> OK
ECAL_12 OK
ECAL_13 OK
ECAL_14 board in slot 18 (FEB number 217) provides wrong data in pattern mode (e.g. synchronisation test). Pedestal is fine and acquisition is correct in this mode. Synchronisation requires ram pattern. Even configuring the board 'by hand', I could not have correct ram patterns at the level of the CROC or looking at the spy ram of the sequencer. Notice that event headers are ok but data look corrupted. Same test done with FEB in slot 17 is ok
HCAL_22 OK
HCAL_23 OK

  • Side A
ECAL_15 To be installed
ECAL_16 To be installed
ECAL_17 To be installed
ECAL_18 To be installed
ECAL_19 To be installed
ECAL_20 To be installed
ECAL_21 To be installed
HCAL_24 To be installed
HCAL_25 To be installed

Backplanes

  • Side C
ECAL_8  
ECAL_9  
ECAL_10  
ECAL_11  
ECAL_12  
ECAL_13  
ECAL_14  
HCAL_22  
HCAL_23  
  • Side A
ECAL_15  
ECAL_16  
ECAL_17  
ECAL_18  
ECAL_19  
ECAL_20  
ECAL_21  
HCAL_24  
HCAL_25  

Power Supply

  • Side C
  • Side A

Spares

FEB

CROC

Backplanes

Power Supply

Cabling

Due to backplane problem the following FEB are currently moved with respect to their expected location.
Ecal crate #16 : FEB#12 and FEB#13 moved FROM slot 17 and 18 TO slot 18 and 19
Ecal crate #15 : FEB#13 moved FROM slot 18 TO slot 19 WARNING this slot is to be used by one LEDTSB
Hcal crate #22 : FEB#14 moved FROM slot 19 TO slot 20 NO problem as it's a PIN readout FEB

Comment : backplane from Ecal crate#15 and #16 need to be repared. Moving FEB affects L0Calo.

PRS/SPD

FEB

  • Side C
  • Side A

CROC

  • Side C
PRS_0 To be installed
PRS_1 To be installed
PRS_2 To be installed
PRS_3 To be installed
  • Side A
PRS_4 To be installed
PRS_5 To be installed
PRS_6 To be installed
PRS_7 To be installed

Backplanes

  • Side C
PRS_0  
PRS_1  
PRS_2  
PRS_3  
  • Side A
PRS_4  
PRS_5  
PRS_6  
PRS_7  

Power Supply

  • Side C
  • Side A

Spares

FEB

CROC

Backplanes

Power Supply

Cabling


TELL1

Tell1 boards and crates

Trigger

-- FredericMachefert - 18 Oct 2007

Edit | Attach | Watch | Print version | History: r8 | r4 < r3 < r2 < r1 | Backlinks | Raw View | Raw edit | More topic actions...
Topic revision: r2 - 2007-10-18 - FredericMachefert
 
    • Cern Search Icon Cern Search
    • TWiki Search Icon TWiki Search
    • Google Search Icon Google Search

    LHCb All webs login

This site is powered by the TWiki collaboration platform Powered by PerlCopyright & 2008-2019 by the contributing authors. All material on this collaboration platform is the property of the contributing authors.
Ideas, requests, problems regarding TWiki? Send feedback