Key Digital ES381 manual Don’t remove any counters from the stack while the software is running

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