Key Digital ES381 manual Stacking Do’s And Don’ts

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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.

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USBcount50 USER’S GUIDE Iss1

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Contents USER’S Guide Contents Software Page Overview General Figure below shows a simplified diagram of the USBcount50 Using More Than One USBcount50 This is a safety critical point so please note it carefully Disassembling The Stack USB Connections For Stacked Configurations USBcount50 USER’S Guide Iss1 Stacking Do’s And Don’ts USBcount50 /MISpc USBcount50 USER’S Guide Iss1 Input Control Counter Modes USBcount50 USER’S Guide Iss1 Frequency Mode Falling Falling Rising Falling Rising Rising USBcount50 USER’S Guide Iss1 Before plugging in the hardware 2 channel example is shown USBcount50 USER’S Guide Iss1 Windows 2K and XP10 13 a 1 channel example is shown USBcount50 USER’S Guide Iss1 Troubleshooting Power Requirements Performance Performance Software