PC Parallel InterfaceThe PC Parallel interface (also referred to as the “Centronics” interface) enables theprinter to operate with controllers designed for buffered PC Parallel printers. Thelength of the data cable from the host computer to the printer must not exceed 15feet (5 meters).Note: For a more detailed reliable data transfer, a maximum cable length of sixfeet is recommended.Table 6. Printer PC Parallel Interface Connector Pin AssignmentsInput Signals Output Signals MiscellaneousSignal Pin Signal Pin Signal PinDATA LINE 1Return220ACKNOWLEDGEReturn1028CHASSIS GROUND 17DATA LINE 2Return321ONLINE/SELECTFAULT1332GROUND (GND) 16, 30DATA LINE 3Return422FAULTReturn3229(NC) 34DATA LINE 4Return523PAPER EMPTYReturn1230DATA LINE 5Return624BUSYReturn1129DATA LINE 6Return725NAUTO FEED 14DATA LINE 7Return826NINIT (PRIME) 31DATA LINE 8Return927NOTDATAPRODUCTS*35DATA STROBEReturn119EXTERNAL 5 VOLTS 18PAPERINSTRUCTIONReturn1533N SELECT 36210 Infoprint 6500 User’s Manual