Re: Hall D Electronics System Review - 14 March 2008, F326/327, 2:00p.m.

["Fernando J. Barbosa" <barbosa@jlab.org>]

Hi Chris,

It is great to see the progress towards the 'test-stand' implementation. 
However, I would like to keep the agenda items as they are. If a module 
does not yet exist, we will have to label it as such and direct 
resources as necessary. All that I am suggesting is that we keep in mind 
the final trigger implementation. I think you agree that all the 
trigger-related modules that we know of or heard about are listed.

Regards,
Fernando




Chris Cuevas wrote:
> Cheers!
> I have a suggestion for the agenda list because several of the modules
> listed do not exist.  I propose three sections outlined below and
> hopefully we can consolidate these topics to reflect what will be
> presented at the review.
>
> Trigger and Data Acquisition Systems
> Level 1 (Creates the experiment trigger)
>      FADC250
>      (Crate) Energy Sum
>      SubSystem Processor
>      Global Trigger Processor
>      Fiber Optic Distribution(Energy Sum)
>
>   Trigger/Clock/Synchronization Distribution
>      Trigger Supervisor
>      Clock/Trigger Fanout
>      Fiber Optic Distribution(Clock/Trigger/Sync)
>
>   Data Acquition
>      Data rates
>      Event Building
>      Network layout (Includes ROCs, Slow Control, and TermServers)
>
> The specifications and details of circuit board schematics, circuit board
> layouts, parts lists/costs  etc can be included for each section listed
> above.
>
> The present activities are focussed on designing the modules for the
> 'test_stand'.  We have the two 20 slot VXS crates, and will produce at
> least four more FADC-250 modules so that we can test a variety of
> configurations with the new CODA libraries.  The prototype Trigger
> Interface module will be used to provide test capabilities for the
> proposed fiber optic distribution of the clock and trigger signals for the
> two crate test stand.
>
> Thanks,
> Chris
> ~~~~~~~~~~~~~~~
>
>
>
>
>
> On Wed, 5 Mar 2008, Fernando J. Barbosa wrote:
>
>   
>> Hello everyone,
>>
>> We will have our next meeting towards the upcoming Hall D system review
>> in May next week This meeting takes place during the regular Hall D
>> On-line meeting slot (F326/327 @ 2:00 p.m.). You may also recall that
>> there is a requirement for 80% design completion for the CD-3 review
>> this Summer.
>>
>> The goals of these meetings are to review the status, schedules and
>> costs with the emphasis on, but not limited to, the technical aspects,
>> requirements and specifications of the trigger system and signal
>> distribution. These are the areas that require the most input at this
>> time. We also need to consider supporting infrastructure with regards to
>> testing of the various modules by the end-users.
>>
>> The following is the agenda for this portion of the meeting (other
>> On-line items will be discussed):
>>
>> 1. Trigger System Diagrams
>> 2. Signal Distribution (Global, VXS, Clock, Trigger, etc.)
>> 3. Signal Distribution (SD) Module
>> 4. Trigger Interface (TI) Module
>> 5. Energy Sum (ES) Module
>> 6. Energy Sum Processor (ESP)
>> 7. SubSystem Processor (SSP)
>> 8. Tagger Energy Processor (TEP)
>> 9. Global Trigger Processor (GTP)
>> 10. Track Subsystem Processor (TSP)
>> 11. Global Trigger Crate
>> 12. Software Support  & CODA
>> 13. Test Strategies
>>
>> Suggested Documentation for the updates are as follows:
>>
>> 1. Description of the system or module - describes the operation and/or
>> shows where it is applied
>> 2. Specifications - should be comprehensive but emphasize the main tasks
>> 3. Diagrams - system, block, wiring, etc.
>> 4. Schematics
>> 5. PCB
>>
>> I have created the appropriate directories in the M drive:
>>
>> 1. For most of this documentation, place your files in
>> M:\halld\Electronics\Documents\TRIGGER or
>> M:\halld\Electronics\Documents\SIGNAL_DISTRIBUTION (for clock, trigger,
>> reset, distribution, etc. only).
>>
>> 2. For schematics and PCB CAD files, place your files in
>> M:\halld\Electronics\PCBs\TRIGGER or M:\halld\Electronics\PCBs\SIGNAL
>> _DISTRIBUTION.
>>
>> Regards,
>> Fernando
>>
>>
>>     
>
>   
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