Date: Thu, 14 Jul 2005 08:44:40 -0500 (CDT)
From: Alan L. Stone <alstone@fnal.gov>
Subject: update

Hi.  I won't be at the mtg this morning, so this will have to do.

I went over the cable routing and MCH rack schematics with John Fogelsong
on Wed.  I had a few nit-picks, but for the most part, it looks great.  
All the details from each cable label is implemented.

Let me remind you - although I may be the current expert on the
signal/cable mapping, I could be biased.  Someone with a fresh pair of
eyes could be of benefit.

Johnny Green reported that the first batch of ADF Transition Cards
are here.  We have 27 at Fermilab (1 at MSU).  The requisition process
for the remaining ~75 was started.  Dan Edmunds signed off on the
ATC which was tested at MSU.  Mike Mulhearn is making sure that 
all three lines - A, B and C - from the ATC output to TAB are good.
Then we can give Johnny the thumbs up to complete the order.

At the same time, we will finish the order for the ~75 patch panel cards.  
We have 24 at Fermilab (1 at MSU).  The patch panel card in conjuction
with the pleated foil cable and ATC was also tested extensively at MSU.

All the pleated foil cables are at the test stand.  I put the 24
patch panel cards in my cabinet. 

All the labels for the BLS, pleated foil and LVDS cables have been 
printed.  BLS labelling has to wait until the shutdown - relabel
as we disconnect the cables from the old electronics.  The pleated
foil and LVDS cables will be lablelled after they have been tested
and before they are bundled.

Similarly, I would prefer to wait until the ATC and patch panel cards
are tested before applying a serial number.  We can add this information
easily to the Excel spreadsheet at the same time.

Johnny sent around an email yesterday with the following information:

"The patch panel rack assemblies are to ship on 7/15/2005. The ATC front
panels are to ship on 7/18/2005. The test boards order should be placed
today for 3-day turn."

As a reminder, the patch panel rack assemblies will be at the bottom
of all the racks, four per rack, to acommodate the patch panel cards
and the routing and strain relief of the BLS and pleated foil cables.
They are functional and pretty.

Although we have a good batch of ATCs, we had to go with a different
vendor to make the front panels.  
http://www-ppd.fnal.gov/EEDOffice-w/Projects/dzero/L1_Cal_Trig_Patch_Panel/WorkingDocs/adf_transition_bd_20050509/L1cal_adf_transmod4_FPSS.pdf
You really need these before you can start plugging in more than a couple
of boards.

The test board went through an engineering review on Tuesday. A couple of
mistakes or features were found, which were fixed on Wed. Rahmi and Cosmin
completed the cable harnesses.  So, this is progressing well.

I would like to reiterate my preference that we delay large scale
installation of the transition system until the test board is in hand. Go
ahead and install a few boards and cables for testing if you are ready to
process/debug multiple inputs, but it is in our best interest to build the
final system once.  When I push an ATC into the ADF backplane, it is my
goal and preference that I never have to pull it out. We will not have the
rest of the patch panel cards and ATCs for another 2-3 weeks anyways. And
we do not have the pORC to run 24/7 yet.  There are benefits to setting up
a testing assembly line and doing it all in one stretch of time, instead
of piecemeal.

Alan