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Message ID: 20     Entry time: Fri Mar 28 20:45:08 2025
Author: CG 
Category: Electronics 
Subject: MSI-8 configurations 
The MSI-8 modules were reconfigured to properly instrument the current setup.

For each detector:
   - 7x n-side signals     -> MSI-8 #1(or #3), Ch 1-5 & 7
   - 4x DSSD signals       -> MSI-8 #2(or #4), p-side -> Ch1+2,  n-side -> Ch3+4
   - 2x Crystal PD signals -> MSI-8 #2(or #4), p-side -> Ch7,    n-side -> Ch8

MSI-8 #1 and #3 contain all 1/5GeV range cards and are set to receive -ve signals as input, with 20 MOhm bias resistors selected and 5 GeV range selected.

MSI-8 #2 also contains all 1/5 GeV range cards with all bias resistors set to 20 MOhm.
Ch1+2 are set for +ve signals.
Ch3+4 are set for -ve signals.
Ch7 is set for +ve signals.
Ch8 is set for -ve signals.

MSI-8 #4 contains 5x 1/5 GeV range boards on Ch1-5 and 3x 4/20 GeV range boards in Ch6-8. All channels have the bias resistor jumper closed (20 MOhm for 5GeV cards, 2 MOhm for 4 GeV cards).
Ch1+2 are set for +ve signals.
Ch3+4 are set for -ve signals.
Ch7 is set for +ve signals and a 4 GeV range.
Ch8 is set for -ve signals and a 4 GeV range.

Attachments 1, 2, 3, 4 show the internal configuration of modules 1, 2, 3, 4, respectively.
Attachment 5 shows the pin jumper definitions.
Attachment 1: PXL_20250328_183822721.jpg  1.972 MB  | Hide | Hide all
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Attachment 2: PXL_20250328_184605620.jpg  2.145 MB  | Hide | Hide all
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Attachment 3: PXL_20250328_191007196.jpg  2.134 MB  | Hide | Hide all
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Attachment 4: PXL_20250328_190527927.jpg  2.043 MB  | Hide | Hide all
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Attachment 5: PXL_20250328_183302403.jpg  2.260 MB  | Hide | Hide all
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