Measurement-computing USB-2020 Manual do Utilizador descarregar pdf (Página 13)

USB-2020 User's Guide Functional Details

40-pin auxiliary connector (J9)

The 40-pin auxiliary connector provides the following connections for all I/O signals except for analog input

and clock I/O:

 Eight digital I/O (

DIO0 to DIO7)

 Digital trigger input (

TRIG IN)

 12 ground connections (

GND)

 Two +5V power outputs (

+VO)

The signals that are available on the 40-pin IDC connector are listed below. Connect signals on the 40-pin IDC

connector using a C40FF-x cable or C40-37F-x cable.

40-pin IDC connector pin out

Pin Description

Signal Name

Pin Description

Ground

GND

•

+VO

Power output

Ground

GND

•

N/C

Do not connect

Digital I/O bit 7

DIO7

•

N/C

Do not connect

Digital I/O bit 6

DIO6

•

N/C

Do not connect

Digital I/O bit 5

DIO5

•

TRIG IN

External digital trigger input

Digital I/O bit 4

DIO4

•

GND

Ground

Digital I/O bit 3

DIO3

•

GND

Ground

Digital I/O bit 2

DIO2

•

GND

Ground

Digital I/O bit 1 DIO1 17 • • 18 GND Ground

Digital I/O bit 0

DIO0

•

GND

Ground

GND

•

N/C

Do not connect

N/C

•

N/C

Do not connect

Ground

GND

•

N/C

Do not connect

N/C

•

N/C

Do not connect

Ground

GND

•

N/C

Do not connect

N/C

•

N/C

Do not connect

Ground

GND

•

N/C

Do not connect

Power output

+VO

•

N/C

Do not connect

Ground GND 37 • • 38 N/C Do not connect

Do not connect

N/C

•

N/C

Do not connect

1 2 ... 8 9 10 11 12 13 14 15 16 17 18 ... 23 24

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