The Psi Box Modes - Brainboxes PS-307 User Manual

Setting Up The PSI BOX.

The PSI BOX Modes.

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The PSI BOX is controlled by its ROM based operating
system. It is a stand alone converter unit. It has the ability to
work with many different computers and can easily overcome
the difficulties in allowing these computers to communicate with
each other.
The PSI BOX is flexible enough to allow operation in
many different modes, and so solve many different types of
problems. These modes are selected by the user when he sets the
front panel DIP switches. The PSI BOX may be either an IEEE
device or the IEEE controller. Alternatively the PSI BOX can be
used to convert between RS232 and Centronics parallel.
The following modes of operation are currently available.
In modes 1 and 2 the PSI BOX is an IEEE 488 device attached
to an IEEE controller computer.
_______ _ MODE 1 IEEE 488 to RS232, bi-directional.
IEEE 488 from Centronics Parallel input.
_______ _ MODE 2 IEEE 488 to RS232, bi-directional.
IEEE 488 to Centronics Parallel output.
The IEEE port is not in use in modes 3 and 4.
_______ _ MODE 3 Centronics Parallel input to RS232 output.
_______ _ MODE 4 RS232 input to Centronics Parallel output.
In modes 5, 6 & 8 the PSI BOX is the IEEE 488 controller.
Data input is not from an IEEE computer. Only one IEEE
device may be accessed and that only as an output device, ie an
IEEE printer or plotter.
_______ _ MODE 5 Centronics Parallel input to IEEE 488 output.
Chapter 1
PSI BOX Reference
Page 3