Cable installation status
5.09.2006
V. Bobillier
1
Cabling
Long distance links installation (from CH to PP)
Work progress (cable pulling) :
• Velo service cables (motion, cooling and vacuum ctrl)
done
• Calorimeter : All cables
done
• Muon : All cables done except some HV cables (due to late ordering).
• All sub-detectors : Cables for Maraton LVPS (pwr + ctrl)
done
• Links to bunker racks :
done
Remaining main tasks :
• Velo, TT, Rich1 cable pulling
• Cutting cable at right lengths
• Installation of all connectors
• Installation of optical fiber cables
• Tests of all cables
5.09.2006
V. Bobillier
2
Cabling
Long distance links installation (from CH to PP)
5.09.2006
V. Bobillier
3
Cabling
5.09.2006
V. Bobillier
4
Cabling
Long distance links installation (from CH to PP)
Missing information and material :
For all long distance links:
• Cable allowance on both ends.  Use Rackwizard to enter
that in the cable DB.
If information is not in rackwizard on time we will simply not be able
to cut your cables at the right lengths and install connectors.
Reminders will be made individually to sub-detector rackwizard
responsible 2 weeks prior to deadline.
5.09.2006
V. Bobillier
5
Cabling
Long distance links installation (from CH to PP)
Missing information and material :
For specific sub-detector cables :
• Precise drawings are required (with detailed explanation when particular care must be
taken). This is particularly important for certain connectors. Good examples of cable drawings
can be found here :
https://edms.cern.ch/nav/EDA-01313
https://edms.cern.ch/nav/EDA-01314
• Specific connectors must be received at pit 8 one week before they are planed to be
installed.
5.09.2006
V. Bobillier
6
Cabling
Patch cord cables (in CH and from PP to sub-det)
REMINDER “Who is responsible for what” :
• Cable ordering:
• Cable installation:
• Connectors:
Sub-detectors
Sub-detectors with help from CERN
(to be discussed case by case in more detail).
Sub-detectors with help from CERN
(to be discussed in more detail).
• Exception : TELL1 boards: sub-detectors only have to take care of MPO patch cords.
Further discussions are needed with sub-detectors requiring help for installation !
5.09.2006
V. Bobillier
7
Cabling
Patch cord cables (in CH and from PP to sub-det)
Who does what:
• Rich:
• OT:
• Calorimeter:
• Muon:
• ST:
• Velo:
Cabling done by themselves
Same
Same
Not defined yet.
Help from CERN needed (to be discussed more precisely)
Help from CERN needed (to be discussed more precisely)
Things to consider before cable pulling when done by sub-detectors:
• Identify cable duct covers before removing them (easier to remount them)
• Store them in a safe place (to avoid people walking on it)
• Protect sharp angles and edges in the ducts (plastic joint and tape)
• Pull thick cables first
• (Identify cables)
5.09.2006
V. Bobillier
8
Racks and crates
All racks other than TELL1 in CH and in cavern
Remaining main tasks :
• Big mechanical work still to be done in all other non-TELL1 racks. This means :
• Sub-detectors must define the rack layout in rackwizard.
• Buy required equipment (deflector, heat exchangers, etc if standard recuperated ones are not ok).
• Rack internal cabling must be thought (equipment size, front/rear connection, air flow and other
constraints must be taken into account).
• Metallic side plates have to be cut at right length and installed (fixed layout needed).
• Sliding bars have to be mounted (fixed layout needed).
• When standard HE, deflectors are used they can be installed (fixed layout needed).
Goal: Have the racks prepared as much as possible so it can be
nearly “plug and play” to install your equipments.
If information is not received well in advance we will not be able to prepare your racks mechanically !
Planning: We need to know when you plan to come to pit 8 with the first equipment ?
5.09.2006
V. Bobillier
9
Racks and crates
All racks other than TELL1 in CH and in cavern
For the moment, all other racks look like that :
• No side plates for air flow
• No internal support for cables
• No sliding bars
• No heat exchangers
• No flexible cooling pipes connecting HE
• No deflectors
• Already a turbine (as we receive them and there is no much
choice where to install them)
If information is not received on time, your racks may
look like that when you come with electronics
equipment !
5.09.2006
V. Bobillier
10
Conclusion
Very simple conclusion :
• Use rackwizard to enter all information concerning your rack layout and cabling.
• Make precise drawing of specific cables (with explanations when
particular care must be taken)
• Get the connectors (and special tools when needed) for long distance
links to pit 8.
5.09.2006
V. Bobillier
11
Questions / Comments ???
5.09.2006
V. Bobillier
12