Printronix L5520 - Manual (Page 65)

Dataproducts Parameters
65
Data Polarity
The Data Polarity parameter must be set to match the data polarity
of your host computer.
• Standard. Does not expect the host computer to invert the
data.
• Inverted. Expects the data received on the data lines from the
host computer to be inverted. Ones become zeros, and vice
versa.
Resp. Polarity
The Response Polarity parameter must be set to match the
response polarity of your host computer.
• Standard. Does not invert the response signal.
• Inverted. Inverts the response signal sent to the host
computer.
Busy On Strobe
• Enable. Asserts a busy signal after each character is received.
• Disable. Asserts a busy signal only when the print buffers are
full.
Latch Data On
Specifies whether the data is read in the middle (default) on the
leading edge, or the trailing edge of the data strobe signal.
Prime Signal
• Enable. The parallel port will do a warm start (reboot) when the
host asserts the Prime Signal.
• Disable. The parallel port will not do a warm start (reboot)
when the host asserts the Prime Signal.