Radio Shack TRS-80 Hardware Manual page 12

Procedure
To
conned
the
secondary
hard disk
drivers], refer to the
illustra-
tion
and
follow
I
he steps below. Notice
thai
the drives
must be
stacked
with the
primary
drive
on
top
of
the
secondary
drives
and
ending with the
drive
modified
to
be
the terminator.
Primary
F-irst
Secondary
Second
Secondary
Third
Secondary
FiguiQ
4.
A
Fully
Configuroet
Hard
Disk
Gp&etr
In
this procedure, the
number
of
expansion cables and
data cables
you connect
depends on
the
number
of
secondary
hard disks
you
have.
1
Conned
one end
of
a
secondary
hard disk
expansion cable
10
the
CONTROL OUT
conneclor on
the primary hard disk
drive,
Connect
the other
end
to
irte
C(jNi
hul
IN
connedor
on
the
first
secondary
hard disk
drive.
2.
Connect any
remaining expansion cables from
the
CONTROL
OUT
on
one
seconda.ry
drive to
the
CONTROL
IN on the next
secondary
drive.
5