Measurement-computing Digital488 Manual do Utilizador descarregar pdf (Página 21)

Section 2 Getting Started

2.5

Digital488OEM I/O Connector Pin Out

External Data Ready (I)

Inhibit (O)

Data Strobe (O)

210 20 30 40 50

4939199129

Clear (O)

Trigger (O)

Service (I)

+5 Volts

[ 50 mA Max!]

Not Used

Common (GND)

(I)

(O)

= Input

= Output

Digital I/O

Bits 1 thru 40

PC Board Edge

Pin Description

1 thru 8

DATA

PORT1

(Input or Output).

Pin 1 is bit 1 (LSB), Pin 8 is bit 8 (MSB).

Least Significant Port

9 thru 16

DATA PORT2

(Input or Output).

Pin 9 is bit 1 (LSB), Pin 16 is bit 8 (MSB).

17 thru 24

DATA PORT3

(Input or Output).

Pin 17 is bit 1 (LSB), Pin 24 is bit 8 (MSB).

25 thru 32

DATA PORT4

(Input or Output).

Pin 25 is bit 1 (LSB), Pin 32 is bit 8 (MSB).

33 thru 40

DATA PORT5

(Input or Output).

Pin 33 is bit 1 (LSB), Pin 40 is bit 8 (MSB).

Most Significant Port

CLEAR

(Output).

DATA STROBE

(Output).

TRIGGER

(Output).

INHIBIT

(Output).

1 2 ... 16 17 18 19 20 21 22 23 24 25 26 ... 82 83

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Measurement-computing Digital488 Manual do Utilizador Página 21

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