Installation
41
cables which came with the unit. There should be a power
cable, a serial interface cable with 9-pin connectors,
and
a
modular telephone cable.
Be
sure
that
the Mac
is
turned off. The modem should be
turned
off
if it has been plugged in.
If
not, plug it into a
grounded
electrical outlet. If you use the Mac, the printer,
and
the modem, you will need to find three separate outlets in order
to
utilize all three units
at
once. If you use a multi-plug adapter,
be certain
that
it
is
a good quality unit
and
provides a secure
ground.
Do
not overload the circuit. The power requirements
for all Macintosh units are listed
on
the rear panels
of
those
units. Although they
do
not require very much power, they
may overload the circuit when placed on the same receptacle as
other appliances. The Mac alone uses
about
as much power as
a
60 watt light bulb.
Locate the serial modem connection
on
the rear panel
of
the Macintosh.
It
is
identified by
an
image
of
a telephone
handset etched into the plastic. Insert one end
of
the
data
cable
into the Mac's receptacle. As always, be careful
of
the pin
alignment. Insert the other end into the serial
port
on
the rear
panel
of
the modem. Use a screw driver
to
tighten the lock-
down
screws on the connectors. Under a special configuration,
the modem may be connected
to
the printer serial port. Details
regarding this
appear
on
page 272
of
chapter
8.
There are several possibilities for the connection with the
telephone line.
If you plan
to
connect the modem in conjunc-
tion with
an
existing telephone, simply unplug the
modular
cable for
that
phone
and
plug it into one
of
the modular sockets
on the modem's rear panel. Then connect the telephone
to
the
remaining
modular
socket using the telephone cable accom-
panying the modem. The modem unit
is
designed
to
allow the
telephone to rest
upon
it. See figure 2.6 for the proper connec-
tions with this configuration.
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