Installation
Xerox LS 3270
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ROTARY SWITCH
The rotary switch is used for changing the output driver (PCL or
FSL) and for generating a TEST print. See the section 1.1.1, PCL
or FSL output Driver for information on changing the driver and the
section 2.3, Testing for information on making a TEST printout.
PARALLEL/MINI-CENTRONICS IN
The parallel/mini-Centronics input port can be connected to the
parallel/Centronics out put on a PC or similar source able to share
the printer with the host.
2.2. Installation
CAUTION:
All connections to the Xerox LS 3270 protocol converter
should be made while the power is switched OFF.

2.2.1 Pre-Installation Information

Printer Dependency:
An external power supply may be needed for the Xerox LS 3270 if
the printer does not have 5V on pin 18 on the Centronics input
port.
This can be verified at the time of installation in the following way:
An external power supply is needed:
• if the PAR and CU LEDs do not turn ON when the printer is
powered ON with the Xerox LS 3270 installed, and
• if no print is generated when making a TEST printout (see
section 2.3, Testing for details.