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Entry  Sat Sep 22 01:03:30 2012, Den, Update, PEM, ETMY table X.pdfY.pdfZ.pdf
    Reply  Mon Sep 24 17:03:39 2012, Jenne, Update, PEM, 1X1 rack power 
    Reply  Fri Oct 12 22:44:49 2012, Den, Update, PEM, ETMY table 6x
       Reply  Sun Oct 14 11:41:42 2012, Den, Update, PEM, ETMY table DSC_4739.JPG14OCT2012.pdf14OCT2012.xml
    Reply  Thu Dec 13 01:49:53 2012, rana, Update, PEM, seismometers a.pdf
       Reply  Thu Dec 13 21:21:34 2012, Den, Update, PEM, seismometers gur.pdfgur_fix.pdf
Message ID: 7433     Entry time: Mon Sep 24 17:03:39 2012     In reply to: 7429
Author: Jenne 
Type: Update 
Category: PEM 
Subject: 1X1 rack power 

Quote:

I've installed Guralp readout box back and it turned out that it does not work with voltage provided from the rack (+13.76 0 -14.94).  +/-12 voltage regulators inside the box convert it to -0.9 0 -12. I've connected the box to +/-15 DC voltage supply to measure seismic motion at the ETMY table. Readout box works fine with +/- 15.

 I'm not sure what the problem is here.  Den and I looked at it for a few minutes, before I went back to helping with putting doors on.  The Sorensons are not supplying the rack power for 1X1.  There are some flat cables which go from the fuses on the side of the rack up to the cable tray, and go elsewhere.  Den is going to continue looking into this, but I think it's a moderately high priority, since lots of things should be getting served by that same power.

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