Datalogic GRYPHON Specifications download pdf (Page 293)

Product Reference Guide

291

Chapter 6

References

This section contains explanations and examples of selected barcode features. See the

Configuration section for the actual barcode labels used to configure the reader.

RS-232 Parameters

RS-232 Only

Baud Rate

Baud rate is the number of bits of data transmitted per second. Set the reader's baud rate to

match the baud rate setting of the host device. With an improper baud rate setting, data may

not reach the host correctly.

Stop Bits

The stop bit(s) at the end of each transmitted character marks the end of transmission of one

character and prepares the receiving device for the next character in the serial data stream. The

number of stop bits selected (one or two) depends on the number the receiving terminal is

programmed to accommodate. Set the number of stop bits to match host device requirements.

Parity

This feature specifies parity required for sending and receiving data. A parity check bit is the

most significant bit of each ASCII coded character. Select the parity type according to host

device requirements.

• Select None when no parity bit is required.

• Select Odd parity and the parity bit value is set to 0 or 1, based on data, to ensure that an

odd number of 1 bi

ts ar

e contained in the coded character.

• Select Even parity and the parity bit value is set to 0 or 1, based on data, to ensure that an

en number of 1 bits are contained in the coded character.

Handshaking Control

The data interface consists of an RS-232 port designed to operate either with or without the

hardware handshaking lines, Request to Send (RTS), and Clear to Send (CTS). Handshaking

Control includes the following options:

• RTS — RTS is asserted during transmissions. CTS is ignored.

• RTS/CTS — RTS is asserted during transmissions. CTS gates transmissions.

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Datalogic GRYPHON Specifications Page 293