0000415: The problem of the power supply of RT8 in the IVC.
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ID Category Severity Reproducibility Date Submitted Last Update
0000415 [IVC/ADC] 0.unknown/unspecified major sometimes 30-10-12 11:46 08-01-13 16:53
Reporter Yuan Tang View Status public  
Assigned To Juergen Morawietz
Priority normal Resolution open  
Status closed  
Summary 0000415: The problem of the power supply of RT8 in the IVC.
Description The problem of the power supply of RT8 in the IVC happened twice(on 27/10 and 28/10). When the
  problem happened there were also no Ampls of the cross-correlations in band1,3,5,7. At the first time
The problem had been solved by rebooting the dzb. At the second time the power supply of RT8 and the lantronics mss 485 LO steering unit had to be switched off and on to solve the problem. It should be looked at after
  the VLBI session is finished.
Additional Information On Wednesday Nov 7 2012, Harm Jan has replaced the Power supply of the RT8 section of the IVC.
The lantronics mss 485 LO steering unit was not replaced yet. This has to be done by Teun, because it has to be configured to get the proper IP address.
It can also be possible that the lantronics device is not causing the problem
but that it is related to the power supply only.
RT 8
sub-band 1, 3, 5, 7
polarisation X, Y
Attached Files

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- Notes
(0000397)
Yuan Tang
13-11-12 10:38

 20121113:
To solve the problem of RT8 in the IVC the LO steering unit of RT8 had been
swapped with the unit of RT5 yesterday. After one or two weeks we will know
if the problem has been solved or not.
 
(0000404)
Juergen Morawietz
08-01-13 16:53

 8.1.2013: Status set to "closed"

- Juergen -
 

- Issue History
Date Modified Username Field Change
30-10-12 11:46 Yuan Tang New Issue
30-10-12 11:46 Yuan Tang RT  => 8
30-10-12 11:46 Yuan Tang sub-band  => 1, 3, 5, 7
30-10-12 11:46 Yuan Tang polarisation  => X, Y
30-10-12 11:46 Yuan Tang Assigned To  => Juergen Morawietz
30-10-12 11:46 Yuan Tang Status new => assigned
09-11-12 09:55 Geert Kuper Description Updated
09-11-12 09:55 Geert Kuper Additional Information Updated
13-11-12 10:38 Yuan Tang Note Added: 0000397
13-11-12 10:38 Yuan Tang Status assigned => testing
21-11-12 12:17 Yuan Tang Status testing => resolved
08-01-13 16:53 Juergen Morawietz Note Added: 0000404
08-01-13 16:53 Juergen Morawietz Status resolved => closed