ADF-to-TAB Data Transmission Measurements

Date Tests Info
28-Feb-06 Number of restarts necessary to get all channels working. (In 2 crates w/ pre-emphasis).
  • 85% - 1 restart
  • 12% - 2 restarts
  • 2% - 3 restarts
  • <1% - >3 restarts
here
26-Feb-06 Solution to flakiness problems here
16-Feb-06 Quantifying the flakiness in the system
  • No TAB channels *always* fail in every slot.
  • Only one cable position fails for every TAB.
  • The number of ADF/ATC/cable combinations that fail for at least one TAB is 50%.
  • For a given configuration (seven TABs assigned to seven slots), and one deskewing, the failure rate is about 5% to 10%.
  • For a given configuration and ten tests, the failure rate increases to around 13% to 20%
here
30-Jan-06 Solution to gross ADF-to-TAB transmission problems in full system here
18-Jan-06 80 ADFs to 8 TABs: initial problems here
11-Jul-05 Rahmi's summary: 1 ADF to 1 TAB here
24-May-05 1 ADF to 1 TAB
  • bits xfered: [ (16em + 16had + 4ctrl) * 8-bits / 132ns ] * 40min
    = 5.2 x 1012
  • b.e.r < 5.7 x 10-13 (95% CL)
here