MEMORANDUM OF THE 4/24/03 L1 CAL TRIGGER

INTEGRATION STAND MEETING

 

Attendees:  J. Anderson, D. Edmunds, H. Evans, P. Padley, D. Wood,  R.P. Smith

 

Agenda:           1.  Review Note from Denis Calvet

2.     AOB

           

             

1.     On April 3 Hal forwarded to me a note sent by Denis Calvet that itemized a number of infrastructure issues pertinent to the L1 Cal Integration Stand which FNAL has agreed to provide outside MCH1.  Today’s meeting was called to focus on Denis’ note and bring its contents to the attention of all involved in the effort Although I said I wouldn’t circulate minutes, I decided a memorandum (this one) was appropriate.  Denis’ note itemized:

 

·       PC or VME SBC Control of the ADF card

·       Software tools (Modelsim, Leonardo, Xilinx, etc)

·       Test Equipment (GHz scope, Logic analyzer)

·       Safety Review

·       Cable Length

·       Schedule (board ships end of July, Denis here 2nd half of Aug)

·       Remote Operation (Kerberos?)

 

2.     John indicated that he was prepared to begin assembling the required rack(s) as soon as he receives detail on how many/what size crates will go in the rack(s), how tall a rack is desired, and how much power is required in the rack. Hal indicated that probably only one rack is needed at the outset.  Regarding rack height, Rich noted that it seemed best to choose the actual rack that will go into MCH1 for RunIIb.  Hal and Darien discussed the crates thought to be needed for the summer work (there will be no NIM or CAMAC): 1 9U crate for the Saclay stuff, 1 for the ADF, the Wiener crate, a standard RMI, a VIPA power supply and a 1U fan tray.  A 1553 isn’t required as the RMI will supervise the safety of the rack without external control.  Everything will be air cooled so no water is required.  John noted that PREP might have a VIPA supply, but anything providing +5V and +/- 12V is OK.  Hal will generate a list which summarizes the crate space and location, and overall power consumption.

 

3.     John indicated that a logic analyzer could be found, but it might be best if the group provided its own scope, since all his spares are woefully obsolete.

 

4.     John indicated that Tim Martin would prepare the electrical service, and MCH would be powered down < 1 shift to make the connections.  He will provide a few quad-outlet service boxes for general use at the test area. (He noted it might be possible to do the electrical hook-up during a machine study period sometime before the shutdown if the detector wasn’t operating).  He asked for a WBS number for the work.  Darien might have one in his schedule (40.1.2.1.9.7?); Rich noted Jon had said operating money existed to cover the work.

 

5.     John indicated that the information he receives from Hal will enable him to start the safety review.  Individual fuses on boards would be nice, but are not mandatory to pass safety if the power supply and rack are properly protected.

 

6.     All agreed that it would the “safest” it Saclay brought its own PC already set up with all the software and hardware needed.  Starting from scratch at FNAL could easily take a week of futzing around to get things running.  PPD has a network license for the Xilink stuff.

 

7.     As for the schedule, the present FNAL schedule is the official one.  Nevis will come in mid-July in any case.  Rich noted that the installation of the test area must be well in hand before July; shutdown demands on John’s group (plus mandated draw-down of saved vacation time for his group) will mean that it will be hard to get much done during shutdown. (At the L2/L3 Manager’s meeting Friday, Marvin Johnson said the Cal fixups planned for the shutdown would load John’s group significantly).

 

8.     Dan agreed to provide the cable lengths; John will install a plastic cableway from the S side to the E side of MCH1.  A few (4) Ethernet outlets are required at the test area.

 

9.     Rich presented Stu’s thoughts on TCP/IP access to the online system from outside.  Even though this system will be on the offline network, it still presents formidable obstacles to outside access.  Darien is in contact with Denis on this matter.  It isn’t clear that outside access will be useful anyway.

 

10.  Action Items:  Hal will send the crate/rack dimension and power numbers to John.  Dan will ask Stu for Ethernet service in the area.

 

 

PS:  All errors in the foregoing are the property of RP Smith.