NETWORK CONNECTIVITY
Network interface
An IBM or IBM-compatible mainframe may be connected to an
LPS through a LAN as shown in figure 4-3.
Ethernet LAN
This configuration requires a front end processor, such as Entire
FIBRE 400/600, that converts the Ethernet TCP/IP protocol to an
Ethernet XNS protocol.
Other LAN
If you are using a network interface other than Ethernet, such as
token ring, you need a third-party gateway to convert your
network protocol to Ethernet TCP/IP protocol. You then need a
front end processor to convert the TCP/IP protocol into XNS on
Ethernet.
Figure 4-3.
IBM and IBM-compatible Ethernet interface
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Ethernet LAN
Laser Printing System
Front end
processor
Other Ethernet
citizens
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Datastreams
In this configuration, application output is generally in PostScript.
PostScript must be converted to a datastream format the printer
understands. The front end processor converts PostScript
datastreams to .IMG files. The front end is also needed to
convert TCP/IP to XNS.
DEC VAX and MicroVAX mainframes
An LPS connected to either a DEC VAX or MicroVAX system in
the VMS environment can be configured for either a
communications or network interface. The communications
interface may be either local or remote. See figure 4-4 for a DEC
SPMF-VMS online interface.
4-4
XEROX 4050/4090/4450/4650 LPS PRODUCT REFERENCE
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