Re: going offline

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From: JMEngelage_at_lbl.gov
Date: Fri Feb 28 2003 - 14:31:21 EST

frank/john ---

   i'm afraid i'm going to be anal on this one (yes, even more
than usual). while i apreciate the info and it is very helpful
i'm going to lean on you to go that extra inch and translate

* TOF-System-Live at TCD Det Live (that's is easy because that one has
a proper label at the TCD)

or

Det Live - TOF System Live (active high TTL when Live)

into one of the options on the 2nd page of fred' TCD manual (on
the trigger web under Run2003). are you refering to
DAQ LIVE
PIN
MISC IN
TRIG

                     thanx in advance, j.

----- Original Message -----
From: Frank Geurts <geurts_at_rice.edu>
Date: Friday, February 28, 2003 1:27 pm
Subject: Re: going offline

> Jack -- as far as I can tell these *should* be the TCD connections
> for TOF:
> * TOFp-L0 at TCD-Out 2
> * TOFp-Pulser at TCD-Out 4
> * TOF-System-Live at TCD Det Live (that's is easy because that one
> has a
> proper label at the TCD).
>
> This is how John documented it in
>
http://mac8.rice.edu/~TOF/TOFp/operations/manuals/TOF_logic_16Dec02.pdf
> and I assume that Fred did not change any pin assignments as such
> when
> our old TCD got replaced with the new one.
>
> -frank
>
>
>
>
>
> JMEngelage_at_lbl.gov wrote:
> > guys ---
> > i talked with fred. he wasn't sure of the connections either.
> > however, he thought the busy cable that was reinstalled in the
> > port labeled "daq live" was correct. the other two connections
> > were a "TOF out" and a "TOF pulser". any info/pictures would
> > be apreciated.
> >
> > -j.
> >
> >
> > ----- Original Message -----
> > From: Frank Geurts <geurts_at_rice.edu>
> > Date: Friday, February 28, 2003 11:42 am
> > Subject: Re: going offline
> >
> >
> >> (i cc'd this message to Jack, Hank and Jeff too)
> >>
> >> I have asked Geary to join Jack as soon as he has arranged his
> >>access.
> >>As far as i can tell these are the most likely scenarios:
> >>
> >>1) wrong TCD connection: Hank mentioned that he had a little
> >>problem
> >>recognizing which of our connectors should go into which TCD
> >>in/output.
> >>We have our cables properly labeled but there are (no more)
> labels
> >>on
> >>these new TCDs ... could there be a mix-up?
> >>
> >>2) Jeff suspects a busy problem and frankly i think this might
> >>well be
> >>it: I recall that when testing the basic TCD connectivity (after
> >>Hank
> >>reconnected) I noticed that only one non-zero token made it
> >>through the
> >>system. The TCD stopped issueing tokens after that usually
> because
> >>it
> >>sees our system busy and waits for it to come alive again for
> the
> >>next
> >>token. Disconnecting the input to the NIM->TTL converter at 2-1-
> 1-
> >>1 made
> >>the TCD fire the rest of the tokens again. Our busy is
> >>constructed from
> >>our LocalBusy, the LocalDAQBusy *and* the "L0 TCD Out2" pulse
> ...
> >>so
> >>either this is again related to item 1 (very likely) or this is
> a
> >>hardware failure in the BUSY construct (we didn't change
> anything
> >>to
> >>that in the last access).
> >>
> >>
> >>John: do you remember where the L0 TCD connection should be on
> the
> >>TCD
> >>(or does Fred Bieser know?)
> >>
> >>-frank
> >>
> >>
> >>
> >>
> >>
> >>W.J. Llope wrote:
> >>
> >>>hi guys,
> >>> i have to go offline for the weekend in a few mins-
> >>>i suspect this latest problem is not us but since frank is all
> >>>over it if it is us i'm sure he will find the problem....
> >>>if it is and we can't fix it remotely i wouldn't consider it
> >>>a complete disaster if we missed a day or two until there was
> >>
> >>some kind of
> >>
> >>>access... the machine and star are not in good shape recently
> >>>anyway.
> >>>
> >>>good luck frank - have fun at BB
> >>>
> >>>_________________________________________________________
> >>>W.J. Llope, Ph.D. Res. Assoc. Professor
> >>> http://wjllope.rice.edu/default.html
> >>> llope_at_physics.rice.edu
> >>>T.W. Bonner Nuclear Lab.
> >>>Rice University, MS-315
> >>>6100 S. Main phone: 713-348-4741
> >>>Houston, TX 77005-1892 fax: 713-348-5215
> >>>
> >>>
> >>
> >>
> >
>
>

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