Xerox 4890 Advanced Product Reference - page 66
LPS CONNECTIONS
Figure 4-19.
Sun Ethernet interface involving TCP/IP protocol
or PostScript data streams
Ethernet LAN
Front end
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Sun
4890 HighLight Color
LPS
Connectivity options for other workstations
Workstations other than the IBM PC, Macintosh, and Sun may
also be connected to the 4890 through a LAN. The connectivity
products needed depend upon the type of network used, the
communication protocols used on that network, and the data
streams generated by the application software in use.
Ethernet interface
Several types of workstations now have Ethernet compatibility.
An Ethernet card is required for each compatible workstation you
wish to connect to the 4890.
If the workstation uses TCP/IP protocol on Ethernet, a front end
is required to connect TCP/IP to XNS. A front end is also
necessary if the application software used produces a data stream
other than Interpress or LCDS.
Refer to figure 4-14 for an example of an Ethernet LAN interface.
Other network interfaces
If your workstations use a LAN other than Ethernet, a
communication module is necessary to convert to Ethernet. This
conversion usually produces TCP/IP on Ethernet rather than XNS
on Ethernet.
A bridge or front end is required to convert TCP/IP to XNS. The
front end is also necessary if the application software used
produces a data stream other than Interpress or LCDS.
Refer to figure 4-19 for an example of an interface involving a
non-Ethernet LAN.
Offline connectivity for workstations
An offline interface option is available for workstations. These
interfaces require a front end processor.
There are several ways of loading data onto the front end using
magnetic media:
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XEROX 4890 HIGHLIGHT COLOR LPS PRODUCT REFERENCE