Author: Susumu Oda Susum.nosp@m.u.Od.nosp@m.a@cen.nosp@m..ch; Hisaya Kurashige

About this document

This document is created from MuonSpectrometer/MuonCablings/TGCcabling12/doc/readme. The file was originally written by Yousuke Kataoka and was updated by Hisaya Kurashige on August, 2007. This informaion can be obsolete as of June, 2009. This document is being updated.

MuonTGC_CablingSvc

MuonTGC_CablingSvc manages all cablings in TGC electronics system.

TGC electronics system

ASD -- PP -- SLB -- HPB -- SL   (-- MuonCTPI) trigger part
               |        
                 -- SSW -- ROD  (-- ROS)      readout part

Methods are

getChannel
getModule

IDs

This service also provides transformation of 3 IDs.

OfflineID : offline Muon Identifier
OnlineID : private numbering scheme of offline IDs
ReadoutID : IDs shown in RDO

Methods are

getOfflineIDfromReadoutID
getReadoutIDfromOfflineID
getOfflineIDfromOnlineID
getOnlineIDfromOfflineID
getOnlineIDfromReadoutID
getReadoutIDfromOnlineID

getChannel method

This method provides connections of channels shown below.

Channels

ASDIn : Detector channel in Muon ID Identifier numbering scheme
- This is TGC chamber channel.
ASDOut : Detector channel in private online numbering scheme
- This is chnanel in terms of "sector".
PPIn : Input channel for front-end module PatchPanel
- This is front channel of TGC electronics.
PPOut : Output channel for front-end module PatchPanel
- This is channel after Oring, adjacent scheme.
SLBIn : Input channel for coincidence matrix SlaveBoard (2-station coincidence for doublets and coincidence for triplets)
- This is also used for hitmap channel in RDO.
SLBOut : Output channel for coincidence matrix SlaveBoard
- This is also used for coincidence channel in RDO.
HPBIn : Input channel for coincidence matrix High Pt Board (3-station coincidence)
- This is also used for coincidence channel in RDO.

Connections

ASDIn <--> ASDOut : Nothing but numbering scheme transformation.
ASDOut<--> PPIn : Detector to electronics mapping.
PPIn <--> PPOut : 1to1, 1to2, 2to1 for Oring or adjacent.
PPOut <--> SLBIn : Connection to second module SLB.
SLBIn <--> SLBOut : Double or triple for channel stagging.
SLBOut <--> HPBIn : Mapping between SLB chip and HPB block.

getModule method

This method provide connections of modules shown below.

Modules

PP (PatchPanel) : BCID, Oring
- Many modules in a sector
SLB (SlaveBoard) : Coincidence matrix for "LowPt"
- Many modules in a sector. 6 types (WD, WT, SD, ST, WI, SI).
HPB (HighPtBoard) : Coincedence matrix for "HighPt"
- Some modules in a sector. 2 types (Wire, Strip).
SL (SectorLogic) : Pt decision
- One in each sector.
SSW (StarSwitch) : Readout module in front-end
- 10 modules in each readout sector (1/12 of wheel).
ROD (ReadOutDriver) : Readout module in back-end
- Only one in each readout sector.

Connections

PP <--> SLB : 1 to 2, consistent to PPOut <-> SLBIn.
SLB <--> HPB : Some to 1, in the same signalType and sector.
HPB <--> SL : Some to 1, in the same sector.
SLB <--> SSW : Some to 1, in the same readout sector (1/12 of wheel).
SSW <--> ROD : Some (10) to 1, in the same readout sector.

getOfflineIDfromReadoutID method

This method provide connections of IDs shown below.

IDs

Offline IDs : Offline Muon Identifier. ASDIn has OfflineID.
- See MuonSpectrometer/MuonIdHelpers/TgcIdHelper.h or ATL-MUON-2002-019.
- stationName : Tx(E/F)
  - x : station number 1:M1 2:M2 3:M3 4:Inner
  - E/F: Endcap / Forward
- stationEta : Chmaber numbering in eta (increases with R!!!)
  - plus sign : A-side minus sign :C-side
  - Ex: M1 4: T8 3:T7 2:T6 1:T3
  - Ex: M3 5: T9 4:T8 3:T7 2:T6 1:T5
- stationPhi : Chamber numbering in phi from x-axis
  - Endcap 1..48
  - Forward 1..24
  - Endcap Inner 1..21
  - Endcap Forward 1..24
- channel
  - Wire : 1 .. n increases with R
  - Strip : 1 ..32 increases with Phi
Online IDs : Private numbering scheme of offline IDs. ASDOut has OnlineID.
- subsystemNumber : 1 for Aside(z>0), -1 for Cside(z<0)
- octantNumber : 0..7 increases with phi
- moduleNumber
  <---- phi ----
  
  7 6 4 3 1 0 11 10 9
  
  8 5 2 14 13 12
  
  [M1,M2, M3] [EI/FI]
- layerNumber
  - 0..6 increases with |Z| (strip triplet 0 or 2)
  - 7,8 for EI/FI
- rNumber : 0..n increases with eta in a sector
  - Ex: M1 1: T8 2:T7 3:T6 4:T3
  - Ex: M3 0: T9 1:T8 2:T7 3:T6 4:T5
- wireOfStrip : 0 for wire, 1 for strip
- channelNumber : 0..n, increases with ASD channel number in a sector
  - Wire: inreases with eta
  - Strip: increases with phi (A-side Forward chamber and C-side Backward Chamber)
  - Strip: decreases with phi (A-side Backward chamber and C-side Forward Chamber)
Readout IDs : IDs shown in RDO
- subDetectorID : 0x67 for Aside(z>0), 0x68 for Cside(z<0)
- rodID : 1 .. 12 for readout sector 0..11
- sswID
  - In a readout sector (1/12 wheel)
    - 0,1 for endcap triplet
    - 2 for forward triplet
    - 3,4,5,6 for endcap doublet
    - 7 for forward doublet
  - In the whole wheel
    - 8 for Inner station (each covers 1/4 wheel)
    - 9 for SLB on SL (each covers 1/12 wheel)
- sbLoc : 0..n, unique identifer for each SLB in a SSW
  - See details in 'PSPack' sheet in http://atlas.web.cern.ch/Atlas/project/TGC/www/design/tgc.xls
- channelID : 0..199 channel of SLB (40..199 is hitmap, 0..39 is used for coincidence info)
Other IDs
- slbID : 0..n
  - First wire, then strip. For each, larger phi sector is back in a sector, id increases with eta (used in TrigT1TGC not appeared in BS and RDO).
- slbAddress : 0..31
  - slb address which is set by DIP SW on SB can be obtained from Readout ID by using getSLBAddressfromReadoutID method.
- rxID : 0..22
  - Input connector ID of SSW can be used instead of sbLoc by using getSLBIDfromRxID.
- sector
  - Endcap : 0 .. 47
  - Forward : 0 .. 23
  - Inner : 0 .. 23
  - Increases with phi
  - #0 sector is in Octant #0
    mapping between sector and station Phi
    
    Endcap
    
    sector 0 1 2 3 4 ...
    
    Phi 47 48 1 2 3 ...
    
    Forward
    
    sector 0 1 2 3 4 ...
    
    Phi 24 1 2 3 4 ...
    
    Endcap Inner
    
    sector 0 1 2 3 4 5 6 7 8 9 10 11
    
    Phi 21 1 2 3 4 5 6 7 8 - 9 10
    
    sector 12 13 14 15 16 17 18 19 20 21 22 23
    
    Phi 11 12 13 14 15 - 16 17 18 - 19 20
    
    Forward Inner
    
    sector 0 1 2 3 4 ...
    
    Phi 24 1 2 3 4 ...
- sectorInReadout : 0 .. 11 increases with phi ( = rodID -1)
  - Each readoutSector covers 4 endcap sectors and 2 forward sectors.
    - ex) readoutSector #0 covers
      - Endcap sector : 0 .. 3
      - Forward sector : 0 .. 1
  - Inner sectors in each 1/4 wheel is covered by one readout sector.
    - ex) readoutSector #1 covers
      - Endcap Inner sector : 0 .. 5
      - Forward Inner sector : 0 .. 5
Related properties
- isBackward : Indicates Backward chamber if true
- F/B assignment in A-side is as follows (F <--> B is reversed in C-side) :
  Endcap
  
  sector 0 1 2 3 4 5
  
  F B F B F B
  
  Forward
  
  sector 0 1 2
  
  B B B
  
  Endcap Inner (except for octant#5)
  
  sector 0 1 2
  
  F F B
  
  Endcap Inner (octant#5)
  
  sector 0 1 2
  
  F B -
  
  Forward Inner
  
  sector 0 1 2
  
  B B B

Necessary files

Under share directory, there are necessary files. These files describes connection in a 1/12 sector. All 1/12 sectors are the same.

MuonTGC_Cabling_ASD2PP.db : Cconnection table between ASDs and PP inputs
MuonTGC_Cabling_PP.db : PP inputs and outputs (i.e. SLBs)
MuonTGC_Cabling_PP2SL.db : PP outputs(SLB) and SLs (trigger path)
MuonTGC_Cabling_SLB2ROD.db : SLBs and RODs (readout path)

While correct SBLOCs for EIFI in MuonTGC_Cabling_SLB2ROD.db are

EWI 2
 0 0  8  6   8  1
 1 0  9  7   8  3
ESI 2
 0 0  8  6   8  1
 1 0  9  7   8  3
FWI 2
 0 0  0  0   8  0
 1 0  1  1   8  2
FSI 2
 0 0  0  0   8  0
 1 0  1  1   8  2

the following SBLOCs are used.

EWI 2
 0 0  1  6   8  1
 1 0  3  7   8  3
ESI 2
 0 0  1  6   8  1
 1 0  3  7   8  3
FWI 2
 0 0  0  0   8  0
 1 0  2  1   8  2
FSI 2
 0 0  0  0   8  0
 1 0  2  1   8  2

The modification to use the correct SBLOCs are difficult. The correct SBLOCs of readout formatted data of Byte Stream are converted to the used SBLOC at the Byte Stream <--> RDO conversions. https://savannah.cern.ch/bugs/?57051