Key Digital ES381 - Manual (Page 2)

CONTENTS
1 OVERVIEW................................................................................................ 5
2 ABOUT THE USBCOUNT50..................................................................... 6
2.1 General ............................................................................................................ 6
2.2 USBcount50 Architecture .............................................................................. 7
2.3 Using More Than One USBcount50.............................................................. 8
2.3.1 Stacked Mode............................................................................................. 8
2.3.1.1 Assembling The Stack......................................................................... 8
2.3.1.2 Disassembling The Stack .................................................................. 10
2.3.1.3 USB Connections For Stacked Configurations................................. 11
2.3.1.4 Software For Stacked Configurations ............................................... 11
2.3.1.5 Stacking Do’s And Don’ts ................................................................ 13
2.3.2 Non-Stacked (MIS) Mode....................................................................... 14
2.3.2.1 USB Connections For Non-Stacked Configurations......................... 14
2.3.2.2 Software For Non-Stacked Configurations ....................................... 14
2.4 Input Control ................................................................................................ 16
2.4.1 Input Supply............................................................................................. 16
2.5 Counter Modes.............................................................................................. 17
2.5.1 General..................................................................................................... 17
2.5.2 Frequency
Mode ...................................................................................... 19
2.5.3 Period Mode............................................................................................. 20
2.5.4 Period Mode............................................................................................. 22
3 SOFTWARE INSTALLATION ................................................................. 22
3.1 Windows 98SE and Windows Me ............................................................... 22
3.2 Windows 2K and XP .................................................................................... 24
3.3 Troubleshooting ............................................................................................ 26
4 HARDWARE SPECIFICATION ............................................................... 27
4.1 Power Requirements .................................................................................... 27
4.2 Mechanical .................................................................................................... 27
4.3 Environmental .............................................................................................. 27
4.4 Performance .................................................................................................. 28
4.4.1 Safety Data and Maximum Ratings ......................................................... 28
4.4.2 Performance ............................................................................................. 29
4.4.3 Miscelaneous............................................................................................ 29
Elan Digital Systems Ltd. 2 USBcount50 USER’S GUIDE Iss1