RichM, HughR
Check for valid HEPI signals at BSC3 showed problems.  Found Cable going from HEPI AA chassis going to incorrect card on I/O comp.  HEPI I/O adc had an ISI cable attached.  We made BSC3 look like BSC 1/2 to correct; this matched the drawings.  The cable running from HEPI AA chassis was unlabeled.  The labeled cable was unattached at both ends.  I suspect the EEguys know something about this--maybe the labeled cable was deemed bad.  It should be removed is so and the cabling being used should be labeled.