Xerox DocuPrint 180 Solution Manual page 31

AFP SUMMARY
Remote connection: BARR/RJE
Using the remote BARR/RJE connection, the printer is attached to a
PC containing BARR software and hardware. The PC is connected
to a Front End Processor (FEP) through telecommunication lines.
The FEP is then attached to the System/370 or System/390
mainframe.
For DocuPrint IPS printers, the BARR software supports remote
connectivity, such as Remote Job Entry (RJE). The remote operator
can communicate to the host, and the host operator can
communicate with the remote device.
The BARR/RJE spooler can accept data from multiple sources and
drive multiple printers simultaneously.
TCP/IP connection: Ethernet
For TCP/IP connectivity via an Ethernet, the mainframe is connected
to either a 3172 or 3745 IBM control unit. The control unit is
connected to a router, which in turn connects the various
workstations and printers on the LAN.
Each device (mainframe, control unit, router, workstation, printer)
must have an Ethernet card installed in the device.
IPS SOLUTIONS GUIDE 2-9