[GreenKeys] Woot! M15 has arrived - and I am already STUCK!

Ed Sharpe Archivist for SMECC via GreenKeys greenkeys at mailman.qth.net
Sun Sep 6 22:16:15 EDT 2015


I do not think there is a select  for 20 or  60 on  keyboard....   Ed#
 
 
In a message dated 9/6/2015 6:14:47 P.M. US Mountain Standard Time,  
drlegendre at gmail.com writes:



Also - since the selector magnet switch was originally in the Series  
position, and I've shifted it to Parallel - this means we went from 20mA to  60mA 
loop. It also seems that the KB can be selected for 20mA or 60mA. In my  
present setup (running the level converter) this isn't any real issue, it  
seems, as the converter box puts out very little current on the keyboard  
terminals. 


But if I want to connect the keyboard and printer in 'local loop', won't  I 
need to also set the keyboard for 60mA, lest I damage something? (I'm  
assuming here that if the selector magnets were set for 20mA, the keyboard  will 
be set the same.. this may be unfounded, but I need to  know..) 

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