T0Inputs < ALICE

---+ T0 inputs: TIMING CHANGED today morning, 10.7.2009
The phase of 0T0C signal was measured: it is now 0 (before it was 7). I.e. all the other inputs are now shifted be 7 to the left.
0T0C edge is NEGATIVE now -it was set manually in CTP + correction in CTP database was done (i.e. l0inputdb->save and
switched ->save)  
---+ T0 trigger input board (module1), 26.5.2009
T0 DIM server was used to control the signal sent to CTP L0 inputs. All the inputs signals (toggling, signature, random, normal) were measured with snapshot memory, and gave results as expected.
This should be repeated for spare module2 (end of June or later).
In July, FPGA is going to be updated, so it should be tested again.

<noautolink>
| *signal*  | DIMchannel/strobing edge| *CTPin* |signature|
| 0T0C | 1 | 9 | 70 |
|<img src="%ATTACHURL%/0t0c.png" border="0" alt="alt" /> | positive |
| 0TVX | 3 | 10 | 72 |
|<img src="%ATTACHURL%/0tvx.png" border="0" alt="alt" /> | positive |
| 0T0A | 2 | 11 | 71 |
|<img src="%ATTACHURL%/0t0a.png" border="0" alt="alt" /> | negative |
| 0TSC | 4 | 12 | 73 |
|<img src="%ATTACHURL%/0tsc.png" border="0" alt="alt" /> | negative |
| 0TCE | 5 | 17 | 74 |
|<img src="%ATTACHURL%/0tce.png" border="0" alt="alt" /> | positive |
</noautolink>

*Note about 0T0A (see previous revison from 2008: the patch cable 16 connected between<br /><b>Rack25/Patch panel/bottom/B/17</b> and <b>CTPSwitch Rx-41 input</b> is damaged*: seems cable is OK -i.e. repaired by itself (toggling signature phase measurement is fine.

Attachments

Topic attachments
I	Attachment	History	Action	Size	Date	Who
png	0t0a.png	r1	manage	1.3 K	26 May 2009 - 14:30	UnknownUser
png	0t0c.png	r1	manage	1.2 K	26 May 2009 - 14:27	UnknownUser
png	0tce.png	r1	manage	1.2 K	26 May 2009 - 14:31	UnknownUser
png	0tsc.png	r1	manage	1.2 K	26 May 2009 - 14:31	UnknownUser
png	0tvx.png	r1	manage	1.2 K	26 May 2009 - 14:32	UnknownUser

This topic: ALICE > WebHome > DetectorCommunications > T0Inputs
Topic revision: r5 - 10 Jul 2009 - _47DC_61ch_47DC_61cern_47OU_61Organic_32Units_47OU_61Users_47CN_61juskoa_47CN_61403783_47CN_61Anton_32Jusko

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