Connecting
the
Network
3
System
Important Note! Before you
begin
connecting
the
Controller
System,
be
sure
the
power
switches of
the
Controller
and
all Computers
(including
attached
optional equipment)
are
turned
OFF.
The
Network 3 Controller
package
includes a
special
Controller-to-Central cable.
This
allows
you to
use
a TRS-80 Model I, II,
or
III
as
the
CENTRAL COMPUTER
when
YOU
connect
it
to
the
Controller. (Note: A TRS-
80
Color
Computer
cannot be used
as
a CENTRAL COMPUTER.)
The Controller-to-Auxiliary cable you need
will depend
upon
how
far
away
your
AUXILIARY
COMPUTERS
are
from
the
Network
3 Controller.
To
decide which Controller-to-Auxiliary cable
you need, see
Table
1.
Controller-to-Auxiliary Cable
Cable Length Catalog Number
1D'
26-1490
25' 26-1491
OU
26-1"92
100'
26-1493
Table
1
The
maximum
distance
an
AUXILIARY
COMPUTER
can
be
from
the
Controller
is 100
feet.
If
an
AUXILIARY
unit
is
more
than
100 feet
from
the
Controller,
information
may
be lost
or
garbled
during
operation.
You
may
also
need
special
adaptors
to connect
the
AUXILIARY COMPUTERS to
the
Network
3
Controller.
The
Color
Computer
Adaptor
allows you to
connect
the
rectangular
Controller-to-Auxiliary
cable
jack
to
the
round
RS-232-C
jack
on
the
back
of
the
TRS-80.
Plug
the
round
end
of
the
adaptor
(the DIN plug)
into
the
RS-232-C
port
on
the
Computer
and
attach
the
other
end
to
the
Controller-to-Auxiliary cable.
If
you use a Model III
as
an
AUXILIARY COMPUTER,
you'll need to connect
the
Controller-to-Auxiliary
cable to
the
Computer
via
the
Model III Adaptor.
Simply
plug
the
appropriate
end
of
the
flat
cable
adaptor
to
the
Computer
and
connect
the
other
end
to
the
Controller-to-Auxiliary cable.
The
Cable Connector
lets
you
attach
two
shorter
cables to
each
other,
making
one long
cable.
For
instance,
if
you
need
a cable 20 feet
Type of
Adaptor
Color Computer
Cable Connector
Model Ill
Cable Adaptors
Catalog
Number
Table
2
long, simply
link
two
10'
cables
together
with
the
Adaptor.
It's
important
to remember,
however,
that
the
maximum
cable
length
is
100'.
For
example
,
do
not
try
to
link
three
50'
cables ( 150')
or
you
may
lose information
when
it
is
transmitted.
All Controller-to-Auxiliary cables
need
to be
connected to
the
Controller
on one
end
and
the
RS-232-C
jack
of
a
Computer
on
the
other
end.
The
location of
the
RS-232-C Interface
jack
will
depend on
the
TRS-80 you'
re
using.
TRS-80 RS-232-C Jack Locations
Model
I
users
will
find
the
RS-232-C
jack
on
the
front
of
the
Expansion
Interface.
You'U
need
to
uee,
ttw
.......
Model
I
RS-232-C
Gable
to
connect
the
Oomroller'
oaiiile
to
the
Model
I.
Model II users will find the RS-232-C jack on the rear of
the Computer. (Connect the Controller to
CHANNEL A
and insert a TERMINATOR
PLUG
into CHANNEL B. If you
don't have a
TERMINATOR PLUG, check with your local
Radio Shack.)
Color Computer users will find the jack
on
the rear of
the Computer. You'll need to use the special Color
Computer
Controller-to-Auxiliary RS-232-C Cable to
connect the Controller to your Color Computer.
Table
3
3
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