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SCSI
Cables
47
SCSI
Cables
Use
only
quality
SCSI
cableswhen
connecting
SCSI
devices.
Cables
are available
in
a
number
of
different lengths,
however,
you
should
pay
particular attention to the
total
length of the
SCSI
daisy
chain.
Note
that's
its
not the length
of
each cable
that's
important, but the
total
length
of
all
cables
used
in
the daisy
chain.
The
total
length
must
not
exceed
6
meters (20
ft.).
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Total length of
SCSI
cables
must
not
exceed 6
m
(20ft)
SCSI
IDs
Each SCSI
device
in the
SCSI
daisy
chain
is
assigned
its
own
ID
number.
SCSI-A
ID numbers
can be
set
from 0
to
7.
The
DR4
itself
uses
ID
7,
and
its
internal
hard
disk
ID
0.
Use ID
numbers
Other than
0 and
7
for
hard
disks
connected
via
SCSI-A.
Note:
If
you do
set
an
external
hard
disk's
ID number
to that
used by
the internal
hard
disk,
the
DR4
will
not be able
to
detect
an
error,
so
no
error
message
will
appear. In
this
case, the
DR4
may
appear
to
work
correctly,
but recording
will
not be
performed
correctly,
and
existing
material
may
be
damaged. You must
take
care
when
setting
SCSI
ID
numbers.
The
following
diagram
shows
how
SCSI
IDs
should
be
set
for
a
typical
DR4
SCSI
daisy chain:
DR4:
ID
7
Internal
hard
disk:
ID
0
O
ID
1
ID
2
ID 3
Version
1.0
5/93
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