1. Data eXchange Coordination
Ongoing Meetings with project engineers and experiments
Compilation of summary report (EDMS )
Coordination of cabling
Coordination of deployment of H/W
Now under approval
9 October 2006
LEADE/ D. Swoboda

2. WP documentation EDMS 772011 v.3
Summary Report
LHC MACHINE AND EXPERIMENT DATA EXCHANGE SYSTEMS IMPLEMENTDATION
Prepared by
D. Swoboda
Checked by :
Ralph Assmann
Roger Bailey
Philippe Baudrenghien
Nick Ellis
Rhodri Jones
Marco Oriunno
Wayne Salter
Alasdair Smith
Wesley Smith
Emmanuel Tsesmelis
Approved by :
Austin Ball
Jean-Jacques Blaising
Paul Collier
Chris Fabjan
Alain Hervé
Robin Lauckner
Lars Leistam
Steve Myers
Marzio Nessi
Ernst Radermacher
Takashi Sako
Werner Witzeling
Approval List
Sophie Baron, Enrico Bravin, Bernd Dehning, David Evans Philippe Farthouat, Per Grafström, Christoph Ilgner, Richard Jacobsson, Daniela Macina, Thilo Pauly, Bruno Puccio, Javier Serrano, Rudiger Schmidt, Walter Snoeys, Jan Troska, Ray Veness, Jorg Wenninger
9 October 2006
LEADE/ D. Swoboda

3. Comments to
Thilo PAULY on , 15:44 said: Accept Generally OK, but I have two major comments. Pages
5 Typo in caption for Table 2. 7 I'm confused about the number of fibres for TTC+BST, and it seems that the spares are not treated consistently in this document. 3.3: TTC = 5 signals + 1 spare 4.1: 6 TTC + 2 BST + 1 spare 4.2: Table 8: TTC spares
10 First two bullets under status: Isn't the full VME crate requested by all experiments, in order to receive the safe beam TTL levels? To my knowledge ATLAS so far differs from other experiments that they have additionally requested (and received) a PCI-card (CTRP) for the GPS time-stamp.
Jorg WENNINGER on , 11:03 said: Accept Ok - except that I'm not in charge of supplying the mode (or even impleneting it). That is more a general LHC Control System issue.
Daniela MACINA on , 10:05 said: Accept The functional specifications about the experimental interlocks (EDMS ) say that the movable devices can move from their garage position when beam is STABLE or UNSTABLE. In addition, during UNSTABLE beam the near detectors are supposed to move as fast as they can to their garage position. It is not clear to me that the GMT system provides to the experiments the SAFE information about UNSTABLE beam (it provides it only on STABLE beam). This issue should be clarified as soon as possible since it is fundamental for the operation of the movable detectors. Pages I am not anymore the link person for TOTEM. The new linkperson is Walter Snoeys.
5 Line 4: harwired injection inhibit is also present on the position of the movable devices since the interlock on the position fully exploits the functions of the BIC.
9 October 2006
LEADE/ D. Swoboda

4. EXPERIMENT BEAM INTERLOCKS
Beam abort and injection inhibit signals can be generated by each detector and each experimental magnet.
Beam abort requests are transmitted over hardwired links to the beam interlock system.
A hardwired injection inhibit is presently only foreseen for the ALICE ZDC acting on beam 1.
All other injection inhibit requests use the DIP system links. Id
Supplier
Project Eng
Scope of supply 1
Experiments
E. Sbrissa
Exp. Magnet interlock – cabling from MSS to BIS.
PH-DT1
(E. Sbrissa).
Application. Only Alice & Lhcb dipole magnets concerned. 2
Link persons
Beam abort. Cabling to BIS (CIBU, BIC),.
provide a coherent signal 3
Injection inhibit. All S/W flags over DIP except for ALICE ZDC H/W contact. 4
Confirmation flag over DIP for Rdy for adjust/Rdy for dump.
Table 3: interlock signals from Experiments
9 October 2006
LEADE/ D. Swoboda

5. TTC instrumentation analog version: 2 Rx/TX per VME module,
ALICE, ATLAS, LHCb, TTC lab
5 signals/fibres available + 2 spares
3/4 AB/RF optical receiver modules (3 Digital or 4 Analog)
analog version: 2 Rx/TX per VME module,
digital version: 3 Rx/TX per VME module
9 October 2006
LEADE/ D. Swoboda

6. BPTX beam collision timing
Item Type Supplier From To Date
Cabling
Signal & coms cables
TS-EL
LHC IF
Exp. IF (O-scope)
Under way
BRAN beam collision rate
450 GeV/c ?
9 October 2006
LEADE/ D. Swoboda

7. BIS beam interlock system
BIC cabling provided to patch panel in rack specified by experiment (FoC).
CIBU installed by AB-CO in rack specified by experiment (FoC).
Cabling CIBU  patch panel tb provided by experiment. Connector and grounding specified by AB-CO.
Cabling BICpatch-panel has been requested (DIC). TS-EL defined cabling campaign.
CIBU available 1Q07. Installation and commissioning tbd between AB-CO and experiment DSS.
Patch-panel space required 1U/channel.
Question: is UPS required for CIBU?
Are PPs needed?
Totem CIBU location?
9 October 2006
LEADE/ D. Swoboda

8. BIS cabling in Experiments
9 October 2006
LEADE/ D. Swoboda

9. DIP naming scheme *
Defined domains are:
ACC – Accelerator Domain
TS – Technical Services Domain
ALICE – ALICE Experiment Domain
ATLAS – ATLAS Experiment Domain
CMS – CMS Experiment Domain
LHCB – LHCb Experiment Domain
1st level of possible sub-domains could be as follows
technical services domain:
VENT – ventilation
COOL – cooling
ELEC – electrical distribution
ACC – access control
GAS – primary gas
SAFETY – CERN Safety Systems
experiment domains:
DSS – Detector Safety System
GCS – Gas Control System
MCS – Magnet Control System
accelerator domain:
PS – PS machine complex
SPS – SPS machine
LHC – LHC machine
CRYO – cryogenics
VAC – vacuum
* LHC Data Interchange Working Group (LDIWG) Phase 2 – Final Report
9 October 2006
LEADE/ D. Swoboda

10. Naming of Data published by experiments via the DIP *
Measurement
Units
Production Volume (Bytes)
Production Interval (sec)
Data Rate
(Bytes/sec)
Total luminosity
Expmt\Beam\LumTot
cm-²s-¹ 4 1
Average rates
Expmt\Beam\RateAvg Hz 12
Luminosity per bunch
Expmt\Beam\LumBunch
14256 60
238
Rates for individual bunches
Expmt\Beam\RateBunch
42768
713
Position and size of luminous region (average over all bunches)
Expmt\Beam\LumRegion\Pos Expmt\Beam\LumRegion\Size cm 24
600
0.04
* Naming scheme proposal for LHC  experiment data in work by C. Kostro
9 October 2006
LEADE/ D. Swoboda

11. Machine to experiments
Measurement
DIP item name
Publication contact
Data contact
Volume Bytes
Freq
Estimated availability
Total beam intensity
dip/LHC/Class/Property/Device
K. Kostro
AB/BI 8
1 sec
Jan 2007
Individual bunch intensities
28 512
1 min
Average 2D beam size 1
Average bunch length
AB/RF
Luminosity
10 sec
Average Beam Loss 16
HOR & VER Positions
128 64
Total longitudinal distribution
9 October 2006
LEADE/ D. Swoboda

12. status of data exchange systems
Instrumentation
Eqmt. LHC Side
Eqmt. XP Side
Appl. LHC Side
Appl. XP Side
Cabling
TTC
Sep06 Proto
≥Oct 06 product.
1Q07
fibres installed,
reserved by TS/EL team
BST
available
In TTC
end 06
GMT
Available
On request ok
requested
BPTX
Pt8 ok
Pt1 L ok
follows LHC installation
Analog signal
Under way
BRAN
In production
Pt 1,5
1st Q07
Pt 2,8
2nd Q07
DIP
done
BIS
1st H 07
DIC ok
MCS/MSS
9 October 2006
LEADE/ D. Swoboda

13. cable end point in experiments
System
ALICE
ATLAS
CMS
LHCb
Totem
TTC
SR2 (2275) -
UX25/C26/36/6 (5+3)
4Y A1 (5+2)
USC55 (3524)
S1E03 (5+2)[1]
UX85/3B09
Sharing CMS
BST
SR2 (2275) (2)
UX25/C26/36/6 (2)
4Y A1 (2)
S1E03 (4)[2]
GMT
C28/35 - DCS
4Y A1
Y.15-02A1 for R. Spiwoks
S2B16
???
BPTX
UX25/C28 (4x)
4Y A1 (4x)
S1E08 (4x) na
BRAN
BIS
UX25/C28
S1E08
MCS/MSS
Magnet Zone, rack tbd
[1] TTC Fibres for CMS go directly via the Machine Tunnel from Point 4 to Point 5, they do not pass the CCC/R as for the others
[2] BST Fibres are two per ring
9 October 2006
LEADE/ D. Swoboda

14. data exchange H/W in experiments
System
ALICE
ATLAS
CMS
LHCb
Totem
TTC
(5+3)
4Y A1 (5+2)
BST
(2)
4Y A1
(2*BOBR)
2x fanout
ODIN
GMT[1]
1U pp/12lemo
1 VME/CTRV
???(CTRP)
CTRI
BPTX
BRAN
DIP
BIS
UX25/C28
(1 +1 pp)
1+1 CIBU
(2+1 pp)
2+1 CIBU
USC55 (3524)
S1E08
(1 pp) 1CIBU – XP
UX85/3B09
(2 pp)
2 CIBU
S1E08 (1 pp)
1 CIBU – XP
1 CIBU – Beam1/Beam2
MCS/MSS
(1 pp)
1 CIBU
1 CIBU – Magnet[3]
[1] Cabling type VH4 launched at all XP sites.Termination through 1U pp with 12 Lemo or Canon 9p.
[3] Original arrangement between B. Puccio (AB/CO) and E. Sbrissa (PH/DT1) was that E. Sbrissa would install the correct cable between the BIC and his CIBU. E. Sbrissa is ok with someone doing it for him, however, and will supply the final rack location ASAP.
9 October 2006
LEADE/ D. Swoboda

15. cost of data exchange systems for experiments
Eqmt. LHC side
Eqmt. XP Side
Appl. XP Side
cabling
TTC
foC
Di: 1.3 kCHF/ch
An: 8.5 kCHF/ch[1] NN
foC except: Splitting
& conx.
BST
In TTC
GMT
xx kCHF (VME fully equipped)
< 1kCHF CTR PCB
On request
foC in surface bldg.
Cu cable to XP rack
BPTX na
BRAN
BIS
BIC to pp/CIBU = foC
MCS/MSS
[1] Computed prices including the price of the transmitters from SR4 to experiments
9 October 2006
LEADE/ D. Swoboda

16. cabling planning in experiments
System
ALICE
ATLAS
CMS
LHCb
Totem
TTC
Ok/splitting pending Ok
Sharing CMS
BST
GMT
11/06
Y.15-02A1 pour Ralph Spiwoks ok
≥03/07
10/06
???
BPTX[1] ok
BRAN na
BIS
tbd
MCS/MSS
Cable test
02/07
01/07
[1] Cable type CMC50 replaced by CMA50.
9 October 2006
LEADE/ D. Swoboda

17. LHC exchange Action Items
Each Experiment to determine what is missing
Agree with suppliers to get commitment on scope and time
Organize missing issues
9 October 2006
LEADE/ D. Swoboda

18. Contact persons LHC: Rudiger.Schmidt@cern.ch
BIS/SLP:
GMT:
TTC:
BST:
BPTX:
BRAN:
DIP:
Timber:
Cables:
ALICE:
ATLAS:
CMS:
LHCb:
Totem:
9 October 2006
LEADE/ D. Swoboda

19. GMT features GMT exclusive parameters:
GMT parameters also included in BST frame:
Circulating beam type/ring
RF parameters
Next injection parameters
Safe Beam Parameters
Beam energy/ring
Beam present flag/ring
Safe Beam flag/ring
Safe collimator flag
Post mortem
40 MHz PLL clock
Beam intensity/ring
LHC machine mode
Fill number
Particle type/ring
Official request by Atlas. Other experiments need to submit request.
CTRV modules will be installed on request only.
Experiments need to specify precise requirements, i.e. triggers , post mortem, etc.
Fanout from CRTV << 100 m.
Cost (CRTV + crate) ~ 20 kCHF.
AB-CO will provide cabling to rack specified by experiment.
9 October 2006
LEADE/ D. Swoboda