Key Digital ES381 User Manual download pdf (Page 13)

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

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Key Digital ES381 User Manual Page 13