Справочник Пользователя для Key Digital ES381

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2.3.1.5 Stacking Do’s And Don’ts 
•  Do power off all counters (remove USB lead) before 
connecting and disconnecting counters from the stack 
•  Don’t remove any counters from the stack while the software 
is running 
•  Don’t remove any counters from the stack while any of them 
are powered 
•  Don’t stack several counters and leave one or more counters 
un-stacked…this configuration will ignore the un-stacked 
counters 
•  Don’t short circuit any of the stack connector pins, or bend the 
pins or use excessive force trying to mate the connectors 
•  Don’t probe or drive any of the stack connector signals 
•  Avoid touching the stack connector pins/signals during 
stacking 
•  Do make sure that each stack connector is properly seated in 
place before trying to stack another channel on top 
•  Don’t allow water or dirt etc to enter the counter via the stack 
connector access hole 
•  Do remember that counters in the stack are NOT isolated 
from each other, they are only isolated from the USB ports.  
To re-iterate, stacked counters have their BNC connector 
bodies connected together through the stack connector.
 
 
Elan Digital Systems Ltd.
 13 
 
USBcount50 USER’S GUIDE Iss1