1. System Tests at Lyon
From Aachen: ICB for front petal side A, disks 4-6, rings 4 and 6
From CERN: CCU25
Tests (M. Ageron):
FEC ring and I2C addressing
Test for voltage oscillations
Data acquisition for system tests.
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Nick Lumb

2. Overall set-up
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3. Connection details
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4. FEC ring ICB has connectors for kapton cable from DOH.
Don’t have DOH so built adapter board to allow clk and data to arrive/return directly to/from FEC.
FEC
CCU1
CCU2
ICB
clk/data
Cable/reset
adapter
DOH adapter board
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Nick Lumb

5. Raw data
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6. Over-voltage study
Response to sudden application of power on 2.5V line.
Smooth increase to maximum – no evidence of over-voltage problem.
But only one module!
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Nick Lumb

7. Next Steps
Test redundancy (“B” lines). Not entirely trivial: needs hardware and software modifications.
Dark box to house full petal under construction.
Contains metal plate to mount ICB and modules.
Integrated cooling loop.
Install 4 modules in ring 6 positions:
We have 4 necessary opto-hybrids.
Will receive 3 modules this week from Aachen; our old module must be repaired.
Read out with XDAQ – pedestals, noise, etc.
Check for dangerous LV oscillations.
Further 4 hybrids at ring 4 positions:
Need 4 additional opto-hybrids.
Need LVDS buffers for ICB plus connectors.
Need 4 hybrids (on frames?)
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Nick Lumb

8. Next Steps (cont.)
Equip ring 3 positions: need ICB for front petal side B, plus hybrids and opto-hybrids.
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Nick Lumb

9. Data Acquisition “CMS-like” system developed by L. Mirabito et al.
Recent integration into XDAQ framework facilitates task sharing between processors (Event Builder; FED, FEC, TSC control; Monitoring, etc).
Java-based (JAS) monitoring developed at Lyon well suited to large number of histograms (tree-like directory structure).
Successfully operated for May PSI test-beam: 12 modules -> 24 FED channels, high event rate.
Runs for “old” CCU already in Lyon; will upgrade for CCU25.
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Nick Lumb

10. XDaqWin control
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11. Monitoring
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12. Monitoring (cont.)
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13. Conclusions
Data from a single module on an ICB has been successfully read out via opto-hybrid.
No problem running with 2 CCU25s (difficulties initially with one CCU plus bypass).
No evidence of over-voltages when applying power.
Will continue study with more modules for ring 4 and ultimately equip whole of group II.
CMS-like data acquisition system works with CCU25.
Next step: adapt PSI-style XDAQ implementation.
18/09/2018
Nick Lumb