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Conference netcad::hub_mgnt

Title:DEChub/HUBwatch/PROBEwatch CONFERENCE
Notice:Firmware -2, Doc -3, Power -4, HW kits -5, firm load -6&7
Moderator:NETCAD::COLELLADT
Created:Wed Nov 13 1991
Last Modified:Fri Jun 06 1997
Last Successful Update:Fri Jun 06 1997
Number of topics:4455
Total number of notes:16761

2693.0. "grounding of the dh900ms" by CSC32::L_MORSE () Wed Aug 30 1995 18:41

    
    	A customer has a ground problem in their machine room described
    	as:
    
    	"we have 8-900 milliamp between cab's"
    
    	They believe this is related to their UPS.
    
    	They requested the unit's schematic drawing.  Hmmmm.
    
    	A consultant needs to know how the grounding is done in the DEChub
    	900MS, and other devices.  
    
    	What ground I asked ?  the signal and frame grounds from the 
    	communication ports.  Hmmm.....
    
    	Is the unit or chassis grounded thru a common point ?
    
    	what else should I inquire to get a complete problem statement ?
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