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MuTr Shielding & Grounding. Preliminary 10/6/99 (G. Hart) Additions 1/4/01 (REM). Table of Contents. 1. Title 2. Table of Contents 3. Table of Contents (cont) 4. System Diagram 5. Chassis 6. Digital section 7. Calibration 8. Glink/Clink 9. Definitions

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Mutr shielding grounding

MuTr Shielding & Grounding

Preliminary 10/6/99 (G. Hart)

Additions 1/4/01 (REM)


Table of contents
Table of Contents

1. Title 2. Table of Contents

3. Table of Contents (cont) 4. System Diagram

5. Chassis 6. Digital section

7. Calibration 8. Glink/Clink

9. Definitions

10. Signal Paths 11. LeCroy HV ground

12. HV Dist. Card Schematic 13. HV Dist. Card Assembly

14. HV Dist. Box Assy 15. HV Cable plug assy

16. HV Cable assy 17. LVHP Schematic

18. LV Dist. Schematic 19. FEE Power Schematic

20. Cable, LVHP - LVD 21. Cable, LVD - FEE

22. Cable, FEE Pigtail 23. FEE Card Layers

24. Cable, FEE Signals 25. Belden 12 AWG Cable

26. Cathode PCB Schematic 27. Anode PCB Schematic

28. Cathode PCB Comp Side 29. Cathode PCB Pad side


Table of contents cont
Table of Contents (cont)

30. Anode PCB Comp Side 31. Anode PCB, Pad side

32. St. 2 Cathode End View 33. FG Jumper assy

34. St. 2 Cathode Side View 35. St. 2 Anode Side View

36. Cathode Card Side View 37. ARCnet receiver

38. MAX1480 39.







Digital section
Digital section

LV +

from preamp

AMUADC

FPGA

LV -

ARCnet

+5 V

0 V

DCM GTM



Distributed grounds for octant stn 2
Distributed grounds for octant (Stn 2)

calib

15

chassis

12

HV

15

chassis

ARCnet

15

chassis

G/C

15

12

chassis

5

LV

8


Distributed grounds for station 2
Distributed grounds for Station 2

LV

calib

chamber/CRA

G/C

… 8 times

HV

ARCnet


Definitions
definitions

Definitions:

Frame Ground - refers to the chamber metal frames, cable shields, external ground planes of printed wiring boards (PCBs), crates and racks.

Possible points (to be investigated) where this may be connected to BNL earth ground are the magnet frame, the Low Voltage High Power (LVHP) crate, and the racks containing the LV & HV power supplies, and the LeCroy high voltage power supply.

SIGR-HV - derived from the chamber card “SIGnal Return - High Voltage”, this is the ground side of the chamber signals, and low and high voltage power.




High voltage distribution box schematic
High Voltage Distribution Box Schematic

(This is an insulated box located on the chamber support structure)












FEE Printed Wiring Cards layer structure

Cathode Readout

Card (CROC)

Layers

Control Card

Layers

Backplane Layers


Signal cable chamber pcb to fee backplane

Signal Cable: Chamber PCB to FEE Backplane

Signal Cable: Chamber PCB to FEE Backplane

Schematic & Assy Drawing

of Signal Cable






Cathode chamber card typical cathode pad side
Cathode Chamber Card (Typical), cathode pad side

Note square pads to lower left

of connectors, these are for the

connections to the frame.


Anode chamber card typical component side
Anode Chamber Card (Typical), component side

Ne square pads to lower left of connectors,

these are for the connections to the frame.


Anode chamber card typical anode pad side
Anode Chamber Card (Typical), anode pad side

Note square pads below connectors,

these are for the connections to the frame.








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