W&T Electronics 15210, Руководство пользователя

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W&T
2 / 4 Computer Adapter
Subject to error and alteration
EPP/ECP/Bitronics 2 Computer Adapter, Model 25215
The 25215 Adapter allows two PC‘s to be connected to a single
printer over a bidirectional parallel interface.
The Adapter input provides 36-pin Centronics females so that
the original printer cables can still be used.
A printer cable for connecting the printer to the Adapter is
included.
Function
The computers are automatically selected on a time-controlled
basis: First any computer is able to print. Whichever PC starts
to print first automatically blocks print output from the other. If
the currently printing computer pauses for approx. 10 seconds
(default setting), the procedure starts over again (who is
printing first gets access to the printer). This pause can be
adjusted to between 5 and 60 seconds using a potentiometer
inside the device. In case of a problem, please check first
whether the printer functions when it is connected directly to
the other computer (without the Adapter).
Important: In some cases manufacturer-specific Windows
printer drivers communicate continuously and permanently
with the connected printer. This trait must be restricted to the
time of the actual print-out and can generally be set in the
driver software. Continuous communication between the driver
software and printer always locks out the corresponding input
of the converter and makes the printer inaccessible for the
second computer. If access to the printer from this PC is only
possible if you exit Windows on the first computer, this is a
clear indication of such a problem.