Printronix P8000 Series Cartridge Ribbon Printer - Manual (Page 246)

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Chapter 5 USB
Receive Data (RD). Serial data stream to the printer.
Transmit Data (TD). Serial data stream from the printer for transmitting status
and control information to the host. Subject to protocol selection.
Request To Send (RTS). Control signal from the printer. Subject to
configuration.
Clear To Send (CTS). Status signal to the printer indicating the host is ready
to receive data/status signals from the printer.
Data Set Ready (DSR). Status signal to the printer indicating the host is in a
ready condition.
Data Carrier Detect (DCD). Status signal to the printer. The ON condition is
required for the printer to receive data.
Data Terminal Ready (DTR). Control signal from the printer. Subject to
configuration.
USB
Menus
The Universal Serial Bus (USB) port is part of Auto Switching and is active
when the Host Interface menu is set to Auto Switching. It can also be selected
as the only Host Interface under the Host Interface menu by selecting USB.
A top level USB Port menu with two submenus is also available:
• Buffer Size in K . The input buffer size used by the USB port. The range
is from 1 to 16. The default is 16.
• Timeout . The Hotport Timeout value used to determine when the port is
inactive. The range is from 1 to 60 seconds. The default is 10 seconds.