)
)
• Introduction
Ther~
are
two
methods
of
data communication between
computer
and external equipment: S-bit parallel and
bit serial.
The serial interface card MZ-SBI03 (hereinafter referred
to
as "interface
~ard")
permits data communication by the
bit serial method. This interface card
is
manufactured in accordance with EIA RS-232C (the Electronic Industries
Association RS-232t::), and used for data communication with
other
equipment having interface based
on
RS-232C.
•
Functions
of
this
interface
card
The interface card has
the
following functions.
1.
One card has
two
channels, each
of
which
is
capable
of
transmitting/receiving data independently.
2.
One
of
the
ten baud rates can be selected by operating
the
switch
on
the
card. Baud rates can be set independently
for
the
two
channels.
3.
Output
connector signals
to
external equipment can be
in
either terminal mode
or
modem mode through the
operation
of
the
jumper chip.
4. This interface card can be used as 20mA current loop for one channel.
•
Applications
Equipped with
the
above-mentioned functions,
the
interface card has a variety
of
applications. Some applications
of
this very versatile serial interface card are shown below.
1.
Data communication between computers on telephone line via acoustic couplers
2. Printer
3. Plotter
4. Digitizer
5. Color display
6.
Card reader
7. Magnetic tape equipment
.
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•
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