Measurement-computing Digital232 Uživatelský manuál stáhnout pdf (Strana 13)

Section 2 Getting Started

2.5

2.2.2 Xon/Xoff Serial Control Selection

Switch

S1-5 is used to enable

Xon/Xoff

serial control. When enabled, the

Digital232

issues

Xoff

when its serial input buffer is near full. When it is able to

accept more information, it issues

Xon

. The

Digital232

also accepts

Xon/Xoff

transmit from the serial device it is communicating with.

When the

Xon/Xoff

mode is enabled, the

RTS

output from the

Digital232

set to +5 volts, and the

CTS

input is ignored. However, the

CTS

input to the

Digital232

should be wired to the

+Vtest

to avoid any problems. The factory

default is

Xon/Xoff

disabled.

S1 View for Xon/Xoff Serial Control

2.2.3 Serial Word Length Selection

S1-6 determines the number of bits per each serial character transmitted or

received. The factory default is 8 data bits.

S1 View of Serial Word Length (Data Bits)

1 2 ... 8 9 10 11 12 13 14 15 16 17 18 ... 58 59

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Measurement-computing Digital232 Uživatelský manuál Strana 13