Digital Equipment LGplus Series, Руководство по установке

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4–40
Baud Rate
This parameter sets the baud rate of the serial interface in the printer. Baud
rate is the speed at which serial data is transferred between the host computer
and the printer. The choices for the RS–232 interface are 1200, 2400, 4800,
9600, and 19200 Baud. The choices for the RS–422 interface are 1200, 2400,
4800, 9600, 19200, 38400, 57600, and 115K Baud.
NOTE: If you select a baud rate that is 19200 or greater, you may need to
increase the Buffer Size in K parameter from the default (8 Kbyte),
to improve performance.
Word Length
The Data Bits parameter sets the length of the serial data word. The length of
the data word can be set to 7 or 8 bits, and must match the corresponding
data bits setting in the host computer. The default is 8 bits.
Stop Bits
The Stop Bits parameter sets the number of stop bits in the serial data word.
Either one or two stop bits can be selected. The setting must match the
corresponding stop bit setting in the host computer. The default is 1 bit.
Parity
The Parity parameter can be set for odd parity, even parity, mark, sense, or no
parity. The setting must match the corresponding parity setting in the host
computer. The default is None.
Data Terminal Ready
This configuration is part of hardware flow control and determines when the
Data Terminal Ready (DTR) signal is generated. This signal indicates
whether or not the printer is ready to receive data.
•
True (the default) continuously asserts the DTR signal.
•
False never asserts the DTR signal.
•
On–Line and BNF asserts the DTR signal when the printer is online and
the internal serial buffer is not full.
•
Off–Line or BF asserts the DTR signal when the printer is offline or the
internal serial buffer is full.