Serial attachment characteristics, Data rates, Supported protocols – Dascom T5040 User Guide User Manual

Page 139: Data transfer, Parity, Serial attachment, Characteristics

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User Guide

Interfaces

131

Serial attachment
characteristics

Data rates

The interface supports the following data rates.

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4800 bps

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9600 bps

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19200 bps

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38400 bps

Supported protocols

This interface will also support the following:

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7 or 8 Data Bits

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Even, Odd, None Parity

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1 or 2 Stop Bit(s)

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Ready/Busy or XON/XOFF handshaking

Data Transfer

A data frame consists of a start bit, seven or eight data bits, 0 or 1 parity
bit(s) and 1 or 2 stop bit(s). With these combinations, 9, 10, 11 and 12
bit frames are available:

Parity

There are three possible parity settings: Even, Odd, None.

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When Even parity is specified, the interface expects to receive data
frames with even parity and will transmit data with even parity.

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When Odd parity is specified, the interface expects to receive data
frames with odd parity and will transmit data with odd parity.

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Parity will be checked whenever Even of Odd parity is selected. If
a parity error is detected, PARITY ERROR message will be display-
ed on the LCD. Printer will continue to receive data.

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When None parity is specified, the interface does not accept data
frames to include a parity bit, and the interface transmits data wit-
hout parity bits.

START

7 or 8 Data Bits

0 or 1

PARITY Bit

1 or 2

STOP bit(s)

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