Measurement-computing USB-1024HLS Instrukcja Użytkownika Pobierz pdf (Strona 12)

USB-1024HLS User's Guide Functional Details

Screw terminal wiring

The USB-1024HLS has two rows of screw terminals—one row on the top edge of the housing, and one row on

the bottom edge. Each row has 20 connections. Pin numbers are identified here.

Figure 3-2. USB-1024HLS screw terminal pin numbers

Screw terminal – pins 1 to 20

The screw terminals on the top edge of the USB-1024HLS (pins 1 to 20) provide the following connections:

! Eight digital I/O connections (

Port C0 to Port C7)

! One counter connection (

CTR)

! Two power connections (

USB +5 V)

! Three pull-up and pull-down connections (

Port A Pull-up/Pull-down, Port B Pull-up/Pull-down and Port

C Pull-up/Pull-down)

! Six ground connections (

GND)

Screw terminal – pins 21 to 40

The screw terminals on the bottom edge of the USB-1024HLS (pins 21 to 40) provide the following

connections:

! 16 digital I/O connections (

Port A0 to Port A7, and Port B0 to Port B7)

! One power connection (

USB +5 V)

! Three ground connections (

GND)

Main connector and pin out

Connector type Screw terminal

Wire gauge range 16 AWG to 30 AWG

3-2

1 2 ... 7 8 9 10 11 12 13 14 15 16 17 ... 20 21

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Measurement-computing USB-1024HLS Instrukcja Użytkownika Strona 12