Rs-232 – Argox AS-8150 User Manual

Page 17

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16

RS-232

CTS: Clear To Send (Hardware Signal)

RTS: Request To Send (Hardware Signal)

Xon: Transmit On (ASCII Code 11

16

)

Xoff: Transmit Off (ASCII Code13

16

)

Flow control:

None-The communication only uses TxD and RxD signals

without regard for any hardware or software handshaking

protocol.

RTS/CTS-If the scanner wants to send the barcode data to

host computer, it will issue the RTS signal first, wait for the

CTS signal from the host computer, and then perform the

normal data communication. If there is no replied CTS signal

from the host computer after the timeout (Response Delay)

duration, the scanner will issue a 5 warning beeps.

Xon/Xoff- When the host computer is unable to accept data,

it sends a Xoff code to inform the scanner to suspend data

transmission, and Xon to continue.

ACK/NAK- When the ACK/NAK protocol is used, the

scanner waits for an ACK (acknowledge) or (not

acknowledge) from the host computer after data transmission,

and will resend in response to a NAK.

Inter-character delay: This is the delay time between data

character

’s data output. It is also same as Inter-char. delay of

keyboard wedge.

Block transmission delay: This is the delay time between

barcode data output. It is also the same as Block

transmission delay of keyboard wedge.

Response delay: This delay is used for serial

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