Measurement-computing Analyzer488 Bedienungsanleitung PDF herunterladen (Seite 44)

Section 2 Getting Started

2.22

handshake is selected, the

RTS

line will be permanently driven

active high.

CTS

Clear To Send - Input - Pin 8

The

CTS

input is used as a hardware handshake line to prevent the

Analyzer488 from transmitting serial data when the RS-232 host is

not ready to accept it. When

RTS/CTS

handshake is selected on

the internal switches, the Analyzer488 will not transmit data out

TxD

while this line is un-asserted (low). If the RS-232 host is not

capable of driving this line it can be connected to the

Vtest

output (Pin 6) of the Analyzer488. If

XON/XOFF

handshake is

selected, the

CTS

line is not tested to determine if it can transmit

data.

2.5.3 Serial Cable Wiring Diagrams

If a cable was not purchased with the interface, the following diagrams

will be helpful in making your own cable. Simple soldering skills and an

attention to detail will ensure successful construction. Refer to the Serial

Controller section of this manual for complete information on using the

Analyzer488 with serial devices.

IBM PC/XT/PS2 to Analyzer488 Wiring Diagram

-RxD

-TxD

CTS

RTS

DTR

-RxD

-TxD

DSR

CTS

RTS

DB-25 Female

7 5 Gnd

Gnd

IBM PC/XT/PS2 to Analyzer488

DB-9 Female

1 2 ... 39 40 41 42 43 44 45 46 47 48 49 ... 280 281

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