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Chapter 4 HOST INTERFACE
Data Request Polarity
The Data Request Polarity parameter must be set to match the data request
polarity of your host computer.
• Standard. Does not invert the request signal.
• Inverted. Inverts the request signal sent to the host computer.
Strobe Polarity
The Strobe Polarity must be set to match the data strobe polarity of your host
computer. When the host computer sends a data strobe signal to the printer,
this enables the printer to read the data bus.
• Standard. Does not expect the data strobe signal to be inverted.
• Inverted. Expects the host computer to invert the data strobe signal.
Buffer Size in K
This option configures the amount of memory allocated for the Dataproducts
parallel port buffer. The default is 8 Kbytes, but you can specify between 1
and 16 Kbytes, in 1-Kbyte increments.