Measurement-computing Serial488/4 Manual do Utilizador descarregar pdf (Página 31)

Section 2 Getting Started

2.19

Table 2-2. RS-232 Serial Port Pin Connections

Pin Description

Input/Output

1 No connection

2 Receive data (

RxD-

) Input

3 Transmit data (

TxD-

) Output

4 No connection

5 Ground

6 No connection

7 Request to send (

RTS+

) Output

or 16 x baud clock Output

8 Clear to send (

CTS+

) Input

or 16 x baud clock Input

9 No connection

Table 2-3. RS-422 Serial Port Pin Connections

Pin Description

Input/Output

1 Ground

2 Clear to send positive (

CTS +

) Input

or 16 x baud clock Input

3 Clear to send negative (

CTS -

) Input

or 16 x baud clock Input

4 Transmit data positive (

TxD +

) Output

5 Transmit data negative (

TxD -

) Output

6 Request to send positive (

RTS +

) Output

or 16 x baud clock Output

7 Request to send negative (

RTS -

) Output

or 16 x baud clock Output

8 Receive data positive (

RxD +

) Input

9 Receive data negative (

RxD -

) Input

1 2 ... 26 27 28 29 30 31 32 33 34 35 36 ... 90 91

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