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3
SUMMARY
OF
CONTROLS
AND
CONNECTIONS
IIM:~-•r -. .
-~,
- - -
..
,
See
flap
(front
view)
1. Power indicator
Lights "green"
when
power is
app lied
(normally via the
MMC module)
2. Floppy disc drives
(A and
B)
Two high density (HD), 2 Mbyte
floppy
disc drives
are
built
in.
3. "Busy" indicators
Lights
red
when
data is being
written to,
or read
from
the
floppy disc.
4. Eject buttons
Used to eJect a
floppy
disc from
the
appropriate floppy disc
drive.
5. Front extension slot door
Open this door for
access
to the front extension slot The
Expansion module has
al ready installed a system
RAM
extension
board
in
this
slot
See
flap (rear
view)
6. RS-232C interface
Can be used to
connect a
modem
or
as a
port
to
another
data
processing
system.
7. Extension slot
This
slot provides CPU
bus
signals from
the main
processor
located in the MMC
module.
The
Expa
nsion
module has
already
installed
an SCSI
interface board
in
this
slot.
8. PRINTER connector
This parallel output
interface
can
be
used to connect
a
printer.
This interface is suitable
for
the
Centronics
compatible
parallel interface.
9. AC inlet
Connects the Expansion module
to the
lower AC power
outlet
of
the MMC
module.
10. POWER switch
8
Sw
itches
power on or off
to the Expansion module;
"I"
is
on,
"O"
is
off,
(When installed
as
described
in
the
manual, the power
supply
is
under
contro
l
of the MMC
pow
er
switch).
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