Measurement Computing USB-2627 - Manual (Page 3)

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Table of Contents
Preface
About this User's Guide ....................................................................................................................... 5
What you will learn from this user's guide ......................................................................................................... 5
Conventions in this user's guide ......................................................................................................................... 5
Where to find more information ......................................................................................................................... 5
Chapter 1
Introducing the USB-2627 .................................................................................................................... 6
Functional block diagram ................................................................................................................................... 7
Chapter 2
Installing the USB-2627 ........................................................................................................................ 8
What comes with your shipment? ....................................................................................................................... 8
Hardware .......................................................................................................................................................................... 8
Software ............................................................................................................................................................................ 8
Documentation .................................................................................................................................................................. 8
Optional components ........................................................................................................................................................ 8
Unpacking........................................................................................................................................................... 8
Installing the software ........................................................................................................................................ 8
Installing the hardware ....................................................................................................................................... 9
Configuring the hardware ................................................................................................................................... 9
Calibrating the hardware..................................................................................................................................... 9
Field calibration ................................................................................................................................................................ 9
Factory calibration ............................................................................................................................................................ 9
Chapter 3
Signal Connections ............................................................................................................................. 10
68-pin SCSI connector P1 ................................................................................................................................ 10
Cabling.............................................................................................................................................................................11
Signal termination ............................................................................................................................................................11
40-pin header connectors J2, J4, and J5 ............................................................................................................ 12
Cabling.............................................................................................................................................................................13
Signal termination ............................................................................................................................................................13
Chapter 4
Functional Details ............................................................................................................................... 14
Analog input modes .......................................................................................................................................... 14
Software paced .................................................................................................................................................................14
Hardware paced ...............................................................................................................................................................14
Burst mode........................................................................................................................................................ 14
USB-2627 components ..................................................................................................................................... 15
68-pin SCSI connector P1 ................................................................................................................................................15
40-pin header connectors J2, J4, and J5 ...........................................................................................................................16
USB connector .................................................................................................................................................................16
LEDs ................................................................................................................................................................................16
Standoffs ..........................................................................................................................................................................16
Signal descriptions ............................................................................................................................................ 16
Analog input ....................................................................................................................................................................16
Analog output ..................................................................................................................................................................17
Digital I/O ........................................................................................................................................................................17
Counter input ...................................................................................................................................................................18
Trigger input ....................................................................................................................................................................18
Timer output ....................................................................................................................................................................18
Ground .............................................................................................................................................................................18
Power output ....................................................................................................................................................................19