DØ Central Fiber Tracker

Level 1 Trigger

Muon Trigger Manager How-To

• log on to d0ol08.
• setup d0online.
• setup onl_apps.
• in /projects/l1muo/VxWorks/current, execute vxworks ('./vxworks &').
  This brings up the Level 1 Muon GUI. The SciFi Level 1 MTM is processor d0olmuo39.
• Generic IOC code sits in /online/ioc/m68k/mv162/d0olmuo39
• To set up the MTM, execute /projects/l1muo/vxstuff/setup-ctm .
• MTT instructions (from Rob):

  To use the MTT, try (from the gui command window): 
  
    cd /projects/l1muo/vxstuff 
    >setup-ctm 
  
  This will setup the MTT.  You can now use a couple of functions...type
  these in the VxWorks Command window: 
  
  clearfifo   !  empties the receiver fifo
  sr1dump 32  !  reads and dumps 32 words from the fifo SR1.  You can use
                 any multiple of 8 for the count.  SR1 is Serial Receiver 1
                 and is the top BNC connection on the MTT front panel.
                 You should plug the cable in here.
  

• Muon (and related DFEA/CTTT) documents:

  • dfe motherboard overview.
  • dfe motherboard schematic pdf.
  • all muon L1 documents.
  • amcc transmitter .
  • protokoll cttt- mtm.



• hardware overview:

  ==========================================================================
  
  
  The SciFi (CTT/CPS/FPS) Muon Trigger Manager (MTM) and Muon Readout
  Card/Crate (MRC) system
  --------------------------------------------------------------------------
  --------------------------------------------------------------------------
  
  2001-1-4: updated/corrected (*** changes marked ***)
  2000-12-7: wisdom collected from Rob McCroskey (robmcc@fnal.gov) 
                and Tom Diehl (diehl@fnal.gov) by Stefan Gruenendahl
  
  overview:
  
  2 crates, + 2 patch panels:
  crate # 1: Muon Trigger Manager crate in PW03 (platform west, rack 03)
  crate # 2: *** Muon Readout Crate in MCH322-2; Moveable Counting House,
  3rd floor; see note 1) ***
  patch panels: PN06 and MCH325 (platform north, and (outside of) Moveable
  Counting House)
  
  
  cables: 
  
  50-conductor twist-and-flat (T/F) 
  40-conductor T/F  
  4 and 8 wide 'data' cables (grey, have 8 and 16 pin plugs, respectively) 
  1553 cables (blue)  
  (shielded) Ethernet cables  
  VBD - VRC cable
  
  details:
  
  crate #1 modules and their cables (MTM crate):
  slot 0: MVM CPU; cable: shielded (!) ethernet to nearest hub
  slot 1: Manager card; cables: 
             4-wide data cable to PN06 patch panel; from there via 24-wide
             cable to MCH325; from there as 8-wide to MRC (note 2) in MCH322-2; 
             purpose: receive timing (RF), 
             send L2/L3 information (i.e. this is the 'readout cable'). 
  [TD] (note 3)
              50 wide T/F cable to PN06 ; from there to MRC. purpose:
  receive trigger decision, crossing number.
              1553 cable  [TD]
  slot n: *** three Trigger Manager (TM) cards, two for CFT/CPS, one for FPS
  ***
             for each TM:
            *** two 40 wide T/F to L1 framework patch panel above framework
                racks  on MCH floor 1 
            --> consult Dan Edmunds for plugging in;  Rick Hance (?) for
                correct route determination; 
                Manuel Martin for trigger timing issues related to cable
                 length  
                (probably not an issue). purpose: send trigger terms to L1
                framework. ***
           
  
  crate #2 modules and cables (MCH readout crate):
  slot 0: MVM CPU: ethernet to nearest hub
  slot 2: VBD : cable to VRC --> Sean Mattingly. purpose: readout to L3.
  slot 3: VBD terminator ?
  slot 7: muon fanout card. SCL cables, incl. black coax and narrow (10-wide
               ?) T/F   [TD]
  slot 8: MRC Muon Readout Card: 
             8-wide data cable to MCH225. purpose: data from MTM. Might be
  in floor already.
             50-wide T/F jumper cable to long cable in floor (--> Tom
  Marshall); long cable runs via patch panel PN06 to 
             MTM crate manager card.  
  
  For making the patch panel connections in PN06 see Tom Diehl.
  
  Path from PW03 to PN06:
  east from PW03, under beam; north immediately after beam; through hole in
  east-west wall into PN area, back down
  into floor, and east to 'bin' (grey box with hinged top lid); north in
  'bin', then west to PN06.
  
  
  --------------------------------------------------------------------------
  
  notes: 
  1) *** crate numbers in a rack start with 0 (top crate) ***
  2) in this document MRC refers to a particular module (the MRC module) in
  the Muon Readout Crate, 
     not the crate as a whole.
  3) [TD] : cable has been put in already by Tom Diehl.
  
  ==========================================================================
  

• cable details:

  
  cable email: (50 wide from PW03-MTMC (slot 1)  to MCH321-2 slot 8)
  
  ...
  
  Rob and I confirmed ... that the 50-wide T/F 20336 is
  indeed bad on pair 1 and 21, and 20415 is open on pair 1.
  I couldn't find another good cable, so I reversed the orientation of 
  cable 20415 (pair 1 <-> pair 25) both at PN06 and behind MCH31x, 
  and taped and labelled the connections to the jumper cables at both ends 
  of the long haul cable. The jumper cables thus have standard polarity 
  and keying at PW03 and MCH321. Pair 25 is bad, but that shouldn't matter.
  
  We should have all our muon readout cables in place. 
  ...
  

module/system	expert	phone	email
MTM system	Rob McCroskey		robmcc@fnal.gov

 

 

Last modified October 2nd, 2001, by SG.
Please send questions or comments to Stefan Grünendahl (Stefan@fnal.gov).