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ETUP OF

Fig. 3 Full-Handshake Cabling Between the PC-HSICA

Card and a Daytronic 9-Pin Computer Interface Port

Daytronic 9-Pin

Computer Interface Port

GND (Shield)

RECEIVE

XMIT

DTR

SGND

CTS

2.e

ETTING

FOR PROPER DATA INTERCHANGE BETWEEN A DAYTRONIC INSTRUMENT AND

A CONNECTED PC-HSICA TO OCCUR, THE PC-HSICA'S INTERFACE PORT AND

THE COMPUTER INTERFACE PORT OF THE DAYTRONIC INSTRUMENT MUST BE

SET TO THE SAME RS-232-C "PROTOCOL"—i.e., to the same BAUD RATE, NUM-

BER OF DATA BITS, NUMBER OF STOP BITS, AND PARITY.

PLEASE NOTE: When the PC-HSICA is set to "HSIC" mode, if a baud rate of

1200 or lower is selected for the PC-HSICA interface—or if a baud rate of 3600,

7200, 56K, or 115.2K is selected—the actual baud rate will be 153.6K. The follow-

ing table summarizes the relation between selected and actual baud rate values.

Selected

Baud Rate

110

134.5

150

300

600

1200

2400

When the PC-HSICA is set to "16C650" mode, the baud rate is passed to the

UART as written.

PC-HSICA C

NTERFACE

Table 2 PC-HSICA Baud Rates

Actual

Baud Rate

153.6K

2400

OMMUNICATIONS

Shield

ROTOCOL

Selected

Baud Rate

3600

4800

7200

9600

19.2K

38.4K

56K

115.2K

153.6K

2.e S

ETTING

PC-HSICA

Interface Port

GND (Shield)

XMIT

RECEIVE

CTS

SGND

DTR/RTS

Actual

Baud Rate

153.6K

4800

153.6K

9600

19.2K

38.4K

153.6K

NTERFACE

ROTOCOL

2-5