Printronix P8000 Series Cartridge Ribbon Printer - Manual (Page 252)

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Chapter 5 Ethernet
nData Available / nPeripheral Request. Driven by the printer. Indicates the
printer has encountered an error. (Data bits 1 and 5 in Nibble mode.)
1284 Active / nAStrobe. Driven by the host. A peripheral device is selected.
Host Logic High —Driven by the host. When set to high, the host indicates all
of its signals are in a valid state. When set to low, the host indicates its power
is off or its signals are in an invalid state.
nInit —Resets init interface from the host.
Ethernet
Refer to the Integrated Network Interface User’s Manual for detailed
information on the ethernet interface.