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Vector Graphic MP Dot Matrix Printer
II.
USER'S GUIDE
In order to understand the User
I
s Guide,
you must
be
aware that the MP
dot matrix printer was designed to work as part of a
Z-80
based system, it
is not intended to be a free standing unit.
It cannot handle RS-232 or
current loop signals directly, for example.
By taking this approach and
exploiting the inherent capabilities of the Z-80, however, Vector Graphic,
Inc. is able to offer a dot matrix printer that can deliver exceptional
performance to your system at low cost.
2.1 Modifications to the Vector Graphic Microcomputer
This section describes the modifications which must be made to the
mainframe
I
s power supply to accomodate the pr inter 's power needs.
If you
are going to use the printer in an existing system that was not shipped with
an
JvI.P
printer, THIS SECTION IS VERY JJl1EORTANT.
However, if the printer was shipped as a part of a complete Vector
Graphic computer system, aside from the section on plugging in the
interconnecting cables, you may skip directly to the test section.
There are four cable assemblies, a small adapter printed circuit board, a
diskette, and and a two
PRQII
I
s supplied with the MP dot matrix printer.
'I\vo
of the cables are used to connect from sources inside the computer to the
rear panel of the canputer.
Two are used to connect from the back panel of
the computer to the MP dot matrix printer.
The small adaptor board is
supplied for use with the Bitstreamer II I/O board.
The PROM's are
installed on the PROM/RAM board.
1)
The four wire cable with a Molex-type plug on one end and spade lugs on
the other ends is used to make power available from the internal power
supply in the mainframe to the rear panel of the computer.
2)
A
25 conductor flat cable wnich terminates in a DB-25S female connector
on one end and a 24 pin DIP connector on the other is used to connect the
Bitstrearner I/O board to the
bac..1<
panel of the computer.
3) The cable with a female Molex-type connectors on one end and a male on
the other is used
to
connect the power supply in the mainframe to the
MP.
4)
The flat cable which terminates in a male ffi-25S connectors on one end
and a female DB-25S connector on the other is used to provide signals from
the mainframe to the MP.
5) The adaptor board with two
34
pin sockets on one side and a 24 pin DIP
socket on the other is used to connect the Bitstreamer
II
I/O board with the
second cable listed above.
Rev.
1-B
6/7/80
2-1
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