Compuprint 4247-L03 Programmer Manua Manual de usuario descargar pdf (Pagina 177)

Mode IEEE 1284

The Serial Interface

This printer provides the RS-232/C serial interfaces. The interface mode is selected via menu.

v Transmission Type

Data is sent and received in start/stop (asynchronous) transmission.

v Character Format

Each character is transmitted in the following format:

1STARTBIT+8DATABITS+1PARITY BIT + 1 STOP BIT

The least significant bit of the data bits is sent first after the start bit. The number of data bits is selected

via menu. The parity bit, when present, follows the data bits. The start bit is a logical “0” and the stop bit

is a logical “1”. The start and stop bits are used as character framing bits.

v Printer Connector

Male DB9 or equivalent connector.

v Drive Capability

Max. 50 feet (15 m) for all supported data rates. The RS-422/A interface is effective up to 1200 m.

Figure 55. Mode IEEE 1284

Appendix B. Interfaces 161

1 2 ... 172 173 174 175 176 177 178 179 180 181 182 ... 203 204

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Compuprint 4247-L03 Programmer Manua Manual de usuario Pagina 177