Dascom T5040 User Guide Manual de usuario descargar pdf (Pagina 139)

User Guide Interfaces

131

Serial attachment

characteristics

Data rates The interface supports the following data rates.

` 4800 bps

` 9600 bps

` 19200 bps

` 38400 bps

Supported protocols This interface will also support the following:

` 7 or 8 Data Bits

` Even, Odd, None Parity

` 1 or 2 Stop Bit(s)

` 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.

` When Even parity is specified, the interface expects to receive data

frames with even parity and will transmit data with even parity.

` When Odd parity is specified, the interface expects to receive data

frames with odd parity and will transmit data with odd parity.

` 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.

` 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)

1 2 ... 134 135 136 137 138 139 140 141 142 143 144 145 146

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Dascom T5040 User Guide Manual de usuario Pagina 139