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Installation & Commissioning
2006-01-30: I have changed jobs, and now work for Fermilab on CMS. I will no longer be actively adding
content or validating links from this page. I can make changes upon special request.
- 2006-01-19: Meeting between Lyn Bagby, Dan Edmunds, John Fogelsong and Alan Stone to finalize the infrastructure
and installation details. Task list circulated by me. John also prepared a spreadsheet, and
will reorder and assign names for technician work. Lyn will merge lists.
- 2006-01-13: All connections, routing, strain relief and dressing between the TAB/GAB and four ADF crates
on the sidewalk test stand completed. See photos.
- 2005-12-06: Overview talk on the L1 CAL Trigger Installation presented at the Collaboration Mtg
(ppt,
pdf).
- 2005-11-23: Email from Jorge Benitez on the Completion of transition system testing.
- 2005-10-25: Director's Review.
- 2005-08-26: Technical Readiness Review.
- 2005-08-24: Excel spreadsheet from Victor Martinez with Status of Rack Components
for power, cooling, saftey and infrastructure including AC distribution, water and air cooling, shelves, cabling, smoke detectors, etc..
- 2005-08-23: Email from Johnny Green on the Status of 75 Patch Panel Cards.
- 2005-08-19: Email from Johnny Green on the Status and Design Change
of the ADF Transition Cards.
- 2005-08-05: Email from Hal Evans on the Preparation for the Aug 26-27 L1CAL System Review.
- 2005-08-01: Logbook entries on Effort to mock-up patch panels, cards and cables.
- 2005-07-29: Logbook entry on First effort to mock-up patch panels, cards and cables.
- 2005-07-28: Email from Alan Stone regarding Updates on Testing, ATCs, Mock-up, Etc.
- 2005-07-27: Requisition for 100 ATC Faceplates. Vendor is Progressive Tool.
- 2005-07-27: Requisition for 8 Rack Fan-Packs. Vendor is Allied Electronics.
- 2005-07-26: Orders have been submitted and approved for the production of the remaining ATCs and PPCs (75 of each).
Pentaplex will make an additional 12 ATCs to correct for the dozen warped cards which we cannot safely plug into the
ADF backplane. We expect the cards, fully stuffed, on Aug 15th.
- 2005-07-25: Jorge Benitez has circulated detailed procedures for testing the BLS-to-ADF Transition System.
- 2005-07-25: 25 faceplates for the ADF Transition Cards have arrived. Jorge Benitez has mounted the faceplates to the 14 good ATCs. In the
first batch of ATCs, a dozen were warped to the point that we could not correct, nor safely plug into the ADF backplane.
- 2005-07-22: Recent requisitions submitted by Johnny Green
- Requisition 14682 - Tool and connectors for Glenair Test Board from Allied Electronics.
- Requisition 14676 - Best Inc. vendor to assemble production order of 75 patch panel cards.
- Requisition 14673 - Manutec vendor to assemble production order of 75 ADF Transition cards.
- 2005-07-22: The hinged patch panel assemblies have arrived from EZTech Manufacturing. One rack has been outfitted at the sidewalk to assist
in the BLS-to-ADF Transition System testing. Three racks are being outfitted in DAB3 by John Fogelsong and Victor Martinez so the a real system
test of the Pleated Foil and LVDS cable routing can be performed. The remaining 7 patch panel assemblies will be built and then stored pending the
shutdown. The schematics for the cable routing and patch panels can be found on the
EED web page.
- 2005-07-21: A 5-u bulkhead panel has been completed by John Fogelsong and Victor Martinez for use in the TAB-to-L1CalTrk cable routing.
The LMR-200 cables from the TAB daughter card
plug in the front. The LMR-400 cables from M119 plug in the rear. The bulkhead panel will be mounted directly above the TAB/GAB crate.
- 2005-07-20: Email from Mike Mulhearn on the Resolution of G-Link Transmission Errors.
- 2005-07-14: Updates on the BLS-to-ADF Transition System.
- 2005-07-13: Email from Johnny Green on Status of Fabrications for Transition System.
- 2005-07-11: Run IIb Integration and Commissioning Schedule
for Summer 2005 prepared by Lyn Bagby and Mike Mulhearn. Daily 9am meetings at the DAB1 kitchen begin.
- 2005-07-05: The 2-ft LMR-200 patch cables for the L1CalTrk system have been fabricated. The daughter cards for the TABs are also here. Cables and
cards were placed in tan cabinet on the sidewalk. A set of 8 LMR-400 cables from M119 have been routed to the sidewalk to the top of rack S107 in which
the TAB/GAB crate is mounted.
- 2005-06-30: June 2005 Run IIb L1CAL Progress Report submitted to management.
- 2005-06-30: Email from Dan Edmunds on the Signing Off and Testing of the Patch Panel Cards,
Pleated Foil Cables and the ADF Transition Cards. In addition, there is some discussion on what to do with the ADF crates on the Sidewalk Test Stand.
- 2005-06-28: Revised Draft Charge for the Installation and
Commissioning of the Run IIb L1 CAL System.
- 2005-06-27: The final batch of 161 Pleated Foil Cables has arrived from Sub-Sem. We have a total of 192.
- 2005-06-20: Peter Renkel and Cosmin Dragoiu have printed all the labels for the BLS Trigger Cables, Pleated Foil Cables, ADF-to-TAB LVDS
Cables and the TAB-to-GAB LVDS Cables. The boxes with printed labels are on the sidewalk in Brady Label boxes. For more information, check
out the web documentation.
- 2005-06-10: Email from Johnny Green on Status of Fabrications for Transition System.
- 2005-06-07: Email from Dan Edmunds on Using BLS signals in the Sidewalk Cal Trig Test Stand.
- 2005-06-06: Email from Philippe Laurens on Setting up the ADF for sending BLS data to TAB.
- 2005-06-02: Email discussion on the L1 trigger latency.
- 2005-06-01: Requisition for Assembly of ADF Transition Cards. Vendor is Manutech.
- 2005-05-31: Microsoft Project files for the D0 Upgrade: WBS Dictionary and
Installation Schedule.
- 2005-05-27: Requisition for Fabrication of Hinged Patch Panels. Vendor is EZTech Manufacturing.
We need 40 plus spares.
- 2005-05-26: Effort Report submitted to SCIPC.
- 2005-05-24: DOE Review Poster Session
[ppt] covering Layer Zero (Derek Strom) and
L1 CAL Trigger (Alan Stone).
- 2005-05-24: Requisition for Cable Labels for BLS Trigger, Pleated Foil and
LVDS cables. Vendor is Brady.
- 2005-05-24: Requisition for Layout of 25 ADF Transition Cards. Vendor is Pentaplex Printed Circuits.
- 2005-05-23: Requisition for Assembly of 25 Patch Panel Cards. Vendor is Best Inc.
- 2005-05-19: Rahmi Unalan and Cosmin Dragoiu tested the first batch of ten pleated foil cables per instructions from Dan Edmunds.
Rahmi's notes on the testing procedure. Johnny Green
gave the go ahead to Vince at Sub-Sem the next day to proceed with the remainder (182 PFCs) of the order
- 2005-05-19: Change notes from the ADF Transition Card Layout Review.
- 2005-05-18: BLS Transition System Tasks & Costs & Labor have been updated in Microsoft Project.
- 2005-05-17: Summary notes on the BLS-to-ADF Transition System and General Installation which may be of use to the SCIPC.
- 2005-05-13: Updated cost estimate for the BLS-to-ADF Transition System.
- 2005-05-13: Requisition for Layout of 25 Patch Panel Cards. Vendor is Pentaplex Printed Circuits.
- 2005-05-11: Discussion on TAB Header Info with respect to TT eta and phi.
- 2005-05-10: A slew of requisitions have been submitted by Johnny Green for the components of the ADF Transition Cards.
- Requisition 14465 - Printed circuit board, orcad schematic, autocad file. Version 2.
2005-05-09: Latest documentation on the ADF Transition Card
has been posted, including card and panel schematics and connectivity drawing.
2005-05-04: BLS Transition System Tasks & Costs have been updated in Microsoft Project.
2005-05-04: Updated cost estimate for the BLS-to-ADF Transition System. The Paddle Card has been
replaced by the ADF Transition Card, and the Patch Panels have been added.
2005-04-29: TAB to L2 test successful. See
Trigger Logbook for more details and instructions.
2005-04-29: From Dan Edmunds - description of how the L1 Trig System sends its
And-Or Terms to the Trigger Framework.
This file also shows the pinout of the cable which carries the
And-Or terms from the GAB to TFW.
Trigger Logbook for more details and instructions.
2005-04-25: Minutes from L1CAL Integration Mtg.
2005-04-22: Established communication from the TAB to
the SBC through the VTM/VRB readout crate.
2005-04-12: Revision B of Patch Panel Schematic
2005-04-11: Minutes from L1CAL Integration Mtg.
2005-04-08: Email discussion on long-term installation plans.
2005-04-07: Report from Mike Mulhearn
of successful test transmission from ADF to TAB.
2005-04-07: Summary of emails and associated documents
relating to the Optical Output of the TAB/GAB.
2005-04-05: Report from Dan Edmunds on Test of Rev. 2 BLS only
Paddle Card.
2005-04-05: Four ADF-2 Card Species and ADF Crate Layout.
2005-04-01: I gave a general overview talk on the L1 CAL Trigger Upgrade at the Operations Mtg
(ppt,
pdf).
2005-03-30: Minutes from L1CAL Integration Mtg.
2005-03-25: Update from Dan Edmunds on 3rd SCL cable and Wiener crate.
2005-03-25: Transition Paddle Card Review.
2005-03-23: Summary from Linda Bagby on recent efforts on
getting the L1 CAL sidewalk readout crate ready, and on pursuing two paths to L2 and L3 - test stand
or global readout.
2005-03-22: The bill of material for three revised prototype
paddle cards submitted for approval (Darien Wood - 25 Mar 2005).
2005-03-22: Bid quote from Sub-Sem for the pleated foil cables
and the bill of material submitted for approval (Vivian O'Dell and Darien Wood - 25 Mar 2005).
2005-03-18: Minutes from L1CAL Integration Mtg.
2005-03-17: Channel Link to Extended ADF Paddle Card.
2005-03-11: Minor Paddle Card setback.
2005-03-11: Procedure from Philippe Laurens for
Setting up the ADF-2 Card to test the ADF to TAB Communication.
2005-03-10: Real BLS Signal Readout through the ADF-2
- Report from Dan Edmunds on the first look during a Tevatron store at real BLS signals through the cabling system and ADF-2 card.
2005-03-09: Minutes from L1CAL Integration Mtg.
2005-03-09: New Geographical Sectors for Run IIb L1 CAL Trigger tests.
2005-03-07: D0 Note 4692 final draft pending comments available for review -
Impedance Matching and Frequency Analysis of the BLS Trigger and Pleated Foil Cables.
2005-03-03: Minutes from L1CAL Integration Mtg.
- Five new chairs will be purchased for the sidewalk test stand.
2005-02-23: Minutes from L1CAL Integration Mtg.
2005-02-16: Minutes from L1CAL Integration Mtg.
2005-02-11: Talks given at the ADF-2 Production Readiness Review.
2005-02-09: Minutes from L1CAL Integration Mtg (doc, pdf).
2005-02-04:
Presentations from the Director's Review of the D0 Run IIb Upgrade.
2005-02-02: Minutes from L1CAL Integration Mtg.
2005-01-26: Minutes from L1CAL Integration Mtg.
2005-01-21: Proposed
Floor Plan for the sidewalk test stand.
Supplemental notes from Lyn Bagby.
2005-01-20: Task schedule for the next few weeks.
Will put into the new Run IIb L1CAL Calendar.
2005-01-20: Wiener VME crates (4 + 1 spare) for ADF have arrived from Germany. Sitting in
wooden boxes in DAB3. Will run load tests Jan 31st (4-8 hours), and then move them down to the
DAB1 sidewalk.
2005-01-13: Shipped to MSU the components of the transition system including two pleated foil
cables, one paddle card, one patch panel card and the working 120 foot blue trigger cable coil.
The components can be included in the ADF testing.
2005-01-12: Agenda
(ppt,
pdf) for first L1CAL Integration Mtg.
Minutes.
2004-10-07: Six Pulizzi boxes, model PC975, were ordered.
- 2005-01-26: Now here, on the sidewalk test stand
(see photo).
This section was last modified on Wed Feb 2 16:54:25 CST 2005.
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Run IIb L1 CAL Upgrade Mtgs
Geographical Sectors & Crate Names
Run II Beam Structure
Run I L1 CAL Trigger Crates
Run IIa Rack Layouts
Run IIa to IIb Racks
MCH1 RunIIb Configuration
Run IIb MCH103-112 Rack Layout
Sidewalk:
Rack Layout
pORC Documentation
Hinged Patch Panel:
Assembly
Front Panel Silk Screen
Construction Document
Front Panel Layout
Back Panel Layout
Monitor Cover Layout
Patch Panel Card:
Connector Layout
Board Schematic 1
Board Schematic 2
ADF Transition Card:
Connectivity
Signal Flipping
Connector Layout
Gerber Files
Faceplate
Pleated Foil Cable Routing:
M103-112 Front & Rear
M103-105 Top, Side & Rear
Bracket Assembly
LVDS Cable Routing:
Rack & Crate Layout
Cable Interconnections
ADF-2 Cards vs Crate Slots
ADF to TAB Cabling
TAB/GAB Backplane
TAB to GAB Cabling
GAB to TFW Cabling
TAB/GAB Faceplate
Communication in the TAB/GAB System
Trigger Control Path
(ppt)
Data Flow Path
(doc)
Run IIb Upgrade TDR
D0 Note 4651 - Redressing the BLS Trigger Cables
(doc).
D0 Note 4692 - Impedance Matching and Frequency Analysis of the BLS Trigger and Pleated Foil Cables
(doc).
D0 Note 4768 - Labeling of Cables and Associated Components
(ps).
Cabling: (xls) (html)
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BLS-ADF Transition System Prototype
- 2005-01-28: Updated cost estimate for the BLS-to-ADF Transition System provided by Johnny Green
(xls,
pdf).
- 2004-11-24: Draft report on the signal testing and impedance matching
(doc,
pdf) was circulated by email for comments.
- The report will form the basis of D0 Note 4692:
"Impedance Matching and Frequency Analysis of Old and New Cables for the Run IIb L1 Calorimeter Trigger Upgrade"
- 2004-11-19: Frank Cuzze from 3M provided an
impedance profile of the 90211 pleated foil cable.
His email references three images:
(Image 1)
(Image 2)
(Image 3)
- 2004-11-04: A presentation on the BLS-to-ADF transition system presented by Mario Camuyrano at the
L1CAL upgrade mtg,
providing first results on both the cable & patch panel mock-up and the signal impedance testing
(ppt,
pdf).
- 2004-10-06: Web page documentation of the cable & patch panel mock-up effort
performed by Mario with Rick DeJonghe (UIC undergrad).
- The web page will form the basis of D0 Note 4651:
"Physical Placement of Cables and Patch Panels for the Run IIb L1 Calorimeter Trigger Upgrade"
- 2004-09-23: I gave a review presentation on the BLS-to-ADF Transition System at the Trigger Upgrade Mtg during the Collaboration Week
(ppt,
pdf).
- 2004-09-17: Received patch panel and paddle card circuit boards from Pentaplex. Sending 4 each locally at Fermilab to be stuffed.
Johnny Green needs to order some extra monitor connectors.
- 2004-09-08: The Pulizzi model PC975 is being
considered as the box for AC distribution and control for the active racks with an ADF, TAB/GAB or Control crate. We will
need six of them for MCH1.
- 2004-09-08: Johnny Green will look for a vendor to make self-laminating labels needed for the
pleated foil cables (160 x 2)
and BLS trigger cables (1280 x 1).
Each text file has three columns - Label Name, Origin and Destination - extracted from the
master Excel spreadsheet produced by Mario Camuyrano.
In Powerpoint, I made a slide with the
pleated foil cable label schematic
drawn to scale.
- 2004-09-07:
Requisition order from Pentaplex Printed Circuits for additional for 6 each of the patch panel card and paddle card prototypes.
- 2004-09-02: Notes from
a BLS-to-ADF Transition System meeting. The layouts from George Wolf for the
Patch Panel Card and
Paddle Card were reviewed.
- 2004-09-01: Email from Hal Evans
to provide the TAB/GAB power usage.
- 2004-08-23: The requisition was approved to get an outside contractor (George Wolf) to finish
the layout of the patch panel card and the paddle card. We were losing manpower because of the
current shutdown, so relying on D0 technicians would have delayed the schedule. The revised artwork
should come back by Aug 31.
- 2004-08-16: Power
output from the ADF and VME Control crates provided by Dan Edmunds.
- 2004-08-12: Nine pleated foil cables have arrived and passed Johnny Green's inspection.
They are about 9.5 feet instead of 10 as they were shortened to reconnectorize.
- 2004-08-06: Email discussion on rack power
needs for the new L1 CAL trigger.
- 2004-08-05: Answers on grouding
issues for the patch panel and paddle card from Dan Edmunds.
- 2004-08-10: Response from John Anderson.
- 2004-08-10: Speaking with Dan on the phone - the 10k ohm resistor for the monitoring effectively removes all
signal components faster than 1 micro-second. Dan proposes using a 500 ohm resistor instead.
- 2004-08-04: Discussions between Alan Stone, Mario Camuyrano and John Fogelsong to clarify the relationship between
the channel spreadsheet and the engineering schematics. Mario has agreed to revise his Excel spreadsheet to include the
following for each of the 1280 BLS trigger cable inputs:
- New MCH1 Rack (103-112)
- Patch panel bulkhead (1-40)
- Patch panel card (1-80 or 1A,1B...40A,40B)
- Patch panel input (32 per patch panel bulkhead)
- Monitor output (8 per patch panel bulkhead)
- Patch panel output (4 per patch panel bulkhead)
- Pleated foil cable (1 to 1 for patch panel output)
- Paddle card (1-80; 1 to 1 match with ADF)
- Paddle card input (2 per paddle card)
- ADF rack, crate and slot (80 slots total - probably already in the spreadsheet)
Once the additional information is added - then checked and rechecked - we will proprose a labelling scheme for all the cables. Before disconnecting
the existing BLS trigger cables, we will add new labels with the origin (trigger eta and phi) and the destination (rack, patch panel
and channel). We would do the same for the pleated foil cables. The board mounted connectors on the patch panel and paddle cards
will be labelled when the boards are stuffed.
- 2004-08-03: Second iteration on the 9 ten-foot pleated foil connectorized cables from Sub-Sem Electronics arrrived
(see photos).
Johnny Green inspected a few of them, and he still was not satisfied with the pleating.
He has asked for Sub-Sem to cut about two inches off of each this time and redo the connectorization.
The turnaround should be a week.
- 2004-07-30:
Requisition order from Digikey for additional connectors for the patch panel and paddle card prototypes.
- 2004-07-29: Cost estimate
worked up by Johnny Green for the patch panels, paddle cards and pleated foil cables.
- 2004-07-23: ADF Backplane
connector layout described by Dan Edmunds.
- 2004-07-22: Notes from discussions with Green and Fogelsong:
- The ERNI connectors for the paddle boards (to mate to ADF backplane), the amphenol connectors for the patch panels (to mate to the BLS cables)
and the test point connectors for the patch panels
still need to be ordered. They are stock items and should be easily obtained from Digikey et al. in 1-2 days.
- The patch panel and paddle board schematics and PCBs for the prototype testing are being done locally. I have
requested parts and pieces for a 5% test (4 ADF boards, 64 trigger towers). Work is on schedule for the end of August.
- Fogelsong has revised the schematics for the patch panel and the wiring, and he has updated his web page. I'll provide quick links
to the PDF files to the right.
- Need to determine what plugs into the ADF backplane above the ERNI connector, as this may be a constraint in the design of the paddle board.
- Should make a mock-up to understand the volume and flow and support of cables to and from the ADF backplane.
- 2004-07-20: The order of 9 ten-foot pleated foil connectorized cables from Sub-Sem Electronics arrrived. Johnny Green inspected them,
and he did not like how they did the pleating, so they were returned the next day. We should get them back next week. The connectors which mount
on the patch panel and paddle boards (to mate with the pleated foil cables) have also arrived.
- 2004-06-11:
Requisition order for manufacture of nine pleated foil cables plus connectors by Sub-Sem.
- 2004-06-10: Mechanical and electrical tests
for the BLS to ADF transition system suggested by Dan Edmunds.
- 2004-06-02: John Fogelsong has created a
L1 Cal Trigger Patch Panel web page under the Fermilab PPD/EED DZero Projects Infrastructure Group. John is working on the pin layout and
a schematic for the patch panel.
- 2004-05-26: Follow-up email from Dan Edmunds
with more details on the paddle board and additional concerns about the signal transition to the ADF backplane.
- 2004-05-24: Meeting with Dan Edmunds, John Anderson, Marvin Johnson and Alan Stone to sketch out the details
of the BLS-to-ADF transition system - cables, connectors and patch panels - which also addressed
Dan's concerns (bottom of document).
The action items from the meeting:
- Use pleated foil cables
which will have a better impedance matching than the suggested
Madison cables.
- Use commercially available paddle cards with the
ERNI connectors which mate to the
ADF backplane. Each paddle board would
have 2 or 4 connectors (TBD) which would receive the pleated foil cables.
- Need the pin layout for every signal and ground, input and output - John Fogelsong, Dan Edmunds, Alan Stone.
- Need mechanical layout of the patch panel with respect to rack space - John Fogelsong, Alan Stone.
- Have Johnny Green approach outside companies with specifications (pin layout, cables, connectors, space and size constraints, etc) for quote.
- Set a goal to have the full system by the end of the summer. A 13 week Tevatron shutdown is scheduled to begin August 31st.
- 2004-05-19: Denis Calvet has shipped to Fermilab
a spool of Madison cable and about 150 connectors parts.
- 2004-06-12: Cable and pieces arrived. Moved them to the test stand area.
- 2004-04-30: Johnny Green filled out a requisition for 300 feet of Madison cable
needed for testing of signal transition from existing blue ribbon coaxial cable and for making prototype BLS-to-ADF extension cables.
- 2004-05-05: Madison cable requisition was given to Terry Erickson for signature.
- 2004-05-06: Madison cable order submitted. Should arrive in 3 business days - Monday or Tuesday (May 10th or 11th).
- 2004-05-13: 300 feet spool arrived. Gave Dan a piece for testing.
- 2004-04-30:
Questions posed by Johnny Green on the BLS fanout cable conversion. Forwarded to Dan Edmunds for comment.
- 2004-05-13:
Answers from Dan Edmunds.
- 2004-05-20: Dean Schamberger provided the schematic to
Summer Driver Circuit which is used
to drive the trigger cables. The most important feature of the design - only designed to drive the correct signal polarity. One is not allowed to
terminate with a simple resistive load.
- Other useful links:
- 2004-04-29: John Anderson prepared a Work Request Form to initiate the study, design and manufacturer of a patch panel
to connect the existing Calorimeter Trigger pickoff signal cables to the yet-to-be-made cables which will plug into the backplane of
the new Calorimeter Trigger ADF boards:
(Word)
(PDF).
- 2004-04-10: Dan Edmunds wrote up a document on the
cable and connector specifications from the existing Run Ia BLS trigger tower pickoff signals to the designed Run IIb ADF backplane.
This section was last modified on Tue Jan 25 12:21:57 CST 2005.
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Engineering Schematics
- Block Wiring - All signal
and ground lines for 16 trigger towers from BLS cable to patch panel to pleated foil to paddle card to ERNI connector to ADF backplane.
- Patch Panel Card - Input from sixteen
BLS trigger connectors, and output to two pleated foil connectors. There are also four monitor connectors to which an expert can
plug in a scope.
- Paddle Card - Input from two
pleated foil connectors, and output to ADF backplane via ERNI connector.
- MCH1 Rack Layout - Distribution
of patch panels and crates for the new trigger system. The color coding illustrates which part of the old trigger system reduces to which ADF crate.
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Racks, Crates & Cables
- 2004-05-17: Conversation with Rich Smith. The MS project still shows only 5 racks needed for the L1 Cal trigger
upgrade. Estimated cost as of Fall 2003 for each new rack with power, cooling and protection systems was $7500.
Some open questions:
- If we continue with the proposal of 4-5 racks with only patch panels for BLS-to-ADF cable transition, will
this rack need safety protection? Will the patch panels need power?
- John Anderson says "the patch panels will be passive and not require power".
- Do we have enough volume beneath the floors in the center aisle of MCH1 to safely rest the existing blue cables
while the old racks are removed and the new ones installed?
- I don't think anyone knows for sure. I took some
photos of MCH1 center aisle
but it is difficult to gauge the depth. The most limited space is under the floor tiles in front of racks M108 and M109.
If we can spare some ribbon cable, I would recommend that we make a mock-up of the cable volume
that we would want to move and give it a try during the late summer/fall 2004 shutdown
- If we "build" all the new racks on the sidewalk, will we have enough power? What about water for cooling?
Will we want to run these racks 24/7, and if so, who is in charge of the pORC?
- How many splitter cards are being made for certain? How long are the cables from the splitter cards to the ADF crates?
This affects where we put the new racks.
- Four splitters (16 EM + 16 H TTs) have been made. It was decided at the
25 March 2004
meeting that it doesn't make sense to produce any more.
- 2004-05-17: Conversation with Ken Johns. The new cal-track trigger cables have already been routed from the collision hall
platform racks to MCH1 and are currently along the
the south wall, hanging with support from cable ties. The plan for the summer/fall 2004 shutdown is to run these cables
beneath the floor from their entrance point in MCH1, west down the south aisle towards the MCH wall, crossover to the north aisle
(but never beneath an existing rack), and east back up the north aisle to the rear of the existing rack M119.
- 2004-02-19: Mario Camuyrano and Alan Stone presented
a proposal for the Rack, Crate & Cabling Layout at the Run IIb L1CAL Upgrade meeting:
(Powerpoint)
(PDF).
An associated Excel spreadsheet
was provided which maps every cable connection from the Run Ia platform to the Run IIb Trigger Algorithm
Boards (TAB).
- A D0 Note is being written to provide more detail of the proposed cable, rack and crate layout:
(Word)
(PDF). The
latest draft was updated 18 November 2004.
This section was last modified on Tue Jan 25 12:21:57 CST 2005.
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L2
- 2004-07-22: Email discussion
between James Heinmiller and Hal Evans regarding the L2 Calorimeter workers for the trigger upgrade.
This section was last modified on Wed Aug 25 14:05:56 CDT 2004.
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Run IIb Specifics
Run IIa Specifics
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