# Presentation: 289982

## Type IV Cables and PP3

-  Status of Type IV installation
-  Connector in situ work
-  Status of PP3
-  Testing

- A.Ciocio - SCTSG

- 29 November 2005

## Status of Type IV Installation

- 	Type IV cables are delivered in double lengths with connectors installed at the PP3 end and pulled between the UX15 cavern and the US(A) halls
- US side completed (October)      2044 cables + spares
- USA side installation started more than a month ago
- Delivery
- 632 cables received so far
- Oct 20 (91 harnesses) & 26 Oct (155 harnesses)
- Delivered as double harness but the total length corresponded to single cable length (mistake in the request)
- Installation of the harnesses as single cable (246) almost one rack on level 1 completed
- Test after installation between UX15 and USA15 more complicated
- Connectors at PS side are cut and will be re-used by the company (part of it)
- Skipped one week because of delay on sending bobbins of raw cable from CERN
- Nov 16 (193 harnesses/386 cables)
- Length is right (~100 m a piece)
- All 386 cables (tested) are on hold for installation since TileCal cables are being installed and TC team is reduced
- 	but we are in line for installation  (2 more weeks)
- No delivery of new cables since last delivery due to a weird technical problem at the factory
- Expected complete delivery of harnesses in January
- Installation of type IV is on hold for a couple of weeks and later on it might be interrupted by type ii/iii

- A.Ciocio - SCTSG

- 29 November 2005

## Connectors in situ

-  Double harnesses will be ultimately cut to length (1 meter extra for now) on
-   the PS end and connectors will be installed in situ by an external company
-  Tooling has been purchased to make prototypes and understand issues
-   of this construction
-  All cables in US15 have been cut to extra length and are ready to be
-   worked on
-  First rack (200 cables/connectors) completed early in July
- Work performed by SEDELEC (subcontract of KontaktSysteme
-        that provides the double length cables
- Many mistakes
- All cables are fixed now (Petr)
-  New Plan
- Marzio helped finding a company to do the work
- Nicolas Massol (TC) contact with companies
- Worked with Petr Kubik (Prague) to discuss technical aspects and qualify samples
- CPE(Italy) selected and contract has been signed
- Several meetings including a one full day at CERN with CPE senior engineers and
- phone conversations to improve their methods and define all the issues
- (cutting to length, tooling, plan, QC)
- Work will start Dec 12
-  Prague has been designing feedtrough board for testing with PS crates

- A.Ciocio - SCTSG

- 29 November 2005

## US(A) racks

- A.Ciocio - SCTSG

- 29 November 2005

## Status of PP3

- PP3 units are in production!
- First 100 units were received three weeks ago
- 600 production units arrived yesterday
- Shaun Roe (initially with Igor Ilyashenko and help from Pamela Ferrari and Ewa Stanecka for the setup) carries on the testing and burn-in.
- 60 units can be tested at the time (2 PP3 crates) with the current number of test cables available – 40 more cables are under construction
- 24 hours with monitoring continuity on all lines, while varying the dummy load so that the Vcc and Vdd currents go to zero and the full power supply voltage is seen on the PP3.
- Voltage limiter test by applying 6V to each PP3 in turn (manually)
- Didier Ferrere has also tested one PP3 with a module, again simulating the situation where the module loses the clock and draws no current, while observing Vdd and Vcc with an oscilloscope.
- 	He reports no voltage spike observed.
- Installation
- Cables are plugged in a few dummy Patch Panels during installation to be placed in the right (final) position and are tightened to horizontal bars
- Cables will have to be all removed from the current position and plugged in by groups/rows when the installation of the real PP3 will occur
- Ashley F. and Scott Moncrieff are currently at CERN (since 14 November) and will stay until mid-December
- Estimated installation of 90 units per day (limited by testing capability)
- 2 PP3 crate have been installed so far
- The plastic support feet of the PCB inside the metal casing of the PP3 had been broken in some cases
- 	and the PCB was therefore moving at one end – replaced and under investigation

- A.Ciocio - SCTSG

- 29 November 2005

## Testing

- Tester designed and provided by Ljubljana (Gregor, Erik)
- 3 Test boxex + 2 Laptops + test cables
- Need more test cables which are “breaking” after so much use
- Lots of problems during the last months but seem solved now
- Test steps (for Type IV):
- Cables are tested at reception (acceptance test)
- After being routed from UX15 to US(A)15 (uncut-double length)
- After connectors are installed
- Test steps (for Type II/III)
- Cables are tested at reception (only samples of delivered batches)
- After installation row by row in the cable tray
- Shift planner (developed by D. Robinson) works very well for planning the activities and have people to sign up
- _[http://www.hep.phy.cam.ac.uk/si-bin/sctworkplanner.cgi](http://www.hep.phy.cam.ac.uk/si-bin/sctworkplanner.cgi)_
- (and contact me because of unexpected changing in rate delivery/testing problems)
- What is needed to be able to take a shift:
- take the safety training course (level 1-2-3 video in B55)
- Level 4 for working in US15
- make the access request on EDH
- get your safety boots & helmet (or borrow them)

- A.Ciocio - SCTSG

- 29 November 2005

## Current Shift Counts 

- 	Institute	Shifts taken
- Prague	50
- Geneva	40
- Valencia	20
- Bergen	19
- UC Santa Cruz	17
- MPI		14
- Wisconsin	13
- CERN	7
- Ioffe		6
- Cracow	5
- Okayama	4
- Ljubljana	4
- LBL		3
- Kyoto		3
- UCL		2
- KEK		2
- Lancaster	1

- A.Ciocio - SCTSG

- 29 November 2005

## PLAN

- A.Ciocio - SCTSG

- 29 November 2005