PSC Scanners Especificaciones descargar pdf (Pagina 23)

R44-2018 17

RS-232

NTERFACE

Handshaking

Review your system documentation to identify handshaking requirements, and use

these labels to change the settings if required. The following brief descriptions explain

each selection.

Hardware Control

CTS/RTS Flow Control — is hardware handshaking. The scanner

activates the RTS (Ready to Send) line when it is ready to send data to the

host. The scanner waits for an active Clear to Send (CTS) signal from the

host before transmitting data. If hardware control is disabled, CTS/RTS

communication will not take place. If the host deactivates the CTS line

during data transmission, the host will receive additional characters for no

more than 2msec

Label Transmission Label TransmissionXmission

CTS

Data

CTS/RTS Flow Control

Active

Disabled

Inactive

CTS Scan Control — is also a hardware control. When scan control is

enabled, label transmission is disabled until CTS is asserted and de-asserted.

Label 1 Label 2Label 1

CTS

Data

CTS Scan Control

Assert

Will not scan again

until toggle

De-assert

Disabled until

1 Varies slightly depending upon baud rate selected.

1 2 ... 18 19 20 21 22 23 24 25 26 27 28 ... 96 97

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PSC Scanners Especificaciones Pagina 23