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BASIC CONCEPTS
Figure 2-3. 4635 input options
Online The channel-attached host computer input is received by the LPS
online interface. In an online environment, the system controller
is physically wired to the host computer. The host computer
“thinks” it is communicating with an IBM 3211 line printer and an
IBM 3811 printing system controller, or an IBM 4245 line printer.
DDI interface The Dynamic Document Interface (DDI) enables communication
between a 4635 LPS and network via a shared disk mechanism
over a SCSI bus. Refer to the Xerox Dynamic Document
Interface Operator Guide for information regarding the DDI.
Offline Magnetic tape input (9- or 18-track) is received by the offline
interface. The LPS Tape Formats Manual describes the tape
format and encryption schemes which a Xerox LPS recognizes.
Ethernet Input from workstations, such as the Xerox 6085, and graphic
scanners, such as the 7650 Pro Imager (using XPIW), is received
by the Ethernet interface using the HIP task.
XEROX 4635 LASER PRINTING SYSTEM PRODUCT REFERENCE 2-5