User`s guide

The AXEL Proprietary Network Servers
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66 TCP/IP AXEL Platine Terminal
The following examples illustrate the most common printer configurations used
on UNIX Systems.
a) The Printer is Directly Attached to the UNIX Host (parallel port)
The UNIX System (lp program) accesses the parallel printer through a device.
This parallel device (/dev/lp0), provided as a standard feature of the UNIX
system, controls the parallel port of the host.
b) The Printer is Attached to the Platine terminal (serial or parallel port)
The AXEL servers allow the UNIX System to access the printer through a
device (as in the previous example).
There are three ways to access a peripheral via a UNIX device:
- printd server (background process),
- ttyd server (background process),
- printd server with Piobe monitoring (IBM AIX only).