v
If
the
SAL
entry
does
not
list
any
cable
FRUs
(BUSCBLX
is
not
in
the
part
number
field),
then
exchange
the
failing
items
listed
in
the
SAL
entry
by
following
the
normal
service
procedures
for
those
FRUs.
See
the
page
for
the
frame
on
which
you
are
working.
This
ends
the
procedure.
v
If
the
SAL
entry
has
cable
FRU(s)
(BUSCBLX
in
the
part
number
field)
listed,
but
the
loop
number,
frame
ID,
and
port
label
are
not
all
listed
with
the
cable
FRU,
go
to
the
Determine
the
HSL
port
label
(See
page
procedure
below.
Determine
the
HSL
port
label:
Retrieve
the
following
information:
v
Loop
number.
The
loop
number
is
displayed
in
hexadecimal
format
as
the
four
leftmost
digits
of
word
7
in
the
SRC.
Convert
the
loop
number
to
decimal
format
(as
it
is
shown
in
HSM)
using
the
table
(found
in
the
Bus
PIP
overview).
Record
both
the
hexadecimal
and
decimal
formats
of
the
loop
number.
If
the
loop
is
an
internal
loop
on
a
Model
270,
800,
or
Model
810,
then,
record
″
Internal
″
.
v
Frame
ID.
The
frame
ID
is
displayed
in
hexadecimal
format
as
the
four
leftmost
digits
of
word
5
of
the
SRC.
You
must
convert
the
frame
ID
to
decimal
format
to
match
what
is
displayed
on
the
Display
Panel
of
that
frame.
Record
both
the
hexadecimal
and
decimal
formats
of
the
frame
ID.
Note:
A
frame
ID
of
0000
is
valid
at
this
point
in
the
procedure.
v
Port
number
indicator.
The
port
number
indicator
is
the
four
rightmost
digits
of
word
5
of
the
SRC.
Record
the
port
number
indicator.
Use
the
frame
ID
and
port
number
indicator
in
the
table
below
to
find
the
HSL
Port
Label.
If
you
are
referenced
to
the
″
Converting
From
HSL
Loop
Number
to
NIC’s
FRU
and
Port
Labels
on
the
System
Unit,
Primary
I/O
Unit
or
Processor
Unit
″
table,
the
failing
item
is
in
a
system
unit.
You
will
need
the
HSL
loop
number
to
determine
the
failing
item.
Table
2.
Determining
which
HSL
port
label
to
use
Frame
ID
Port
number
indicator
Use
HSL
port
label:
0000
0000
v
Models
270,
800,
810,
820,
830,
and
SB2:
–
On
loop
256:
The
port
identified
is
an
internal
connection
from
the
Network
Interface
Controller
(NIC)
to
the
embedded
HSL
I/O
Bridge
in
the
system
unit.
Exchange
the
NIC
using
symbolic
FRU
If
that
does
not
correct
the
problem,
exchange
the
HSL
I/O
Bridge
in
the
system
unit
using
symbolic
FRU
This
ends
the
procedure.
–
Other
than
loop
256
use:
″
x0
″
v
Model
825:
The
port
is
internal.
Replace
the
system
unit
backplane.
See
for
location
and
service
information.
This
ends
the
procedure.
v
Models
840
and
SB3
use:
″
x0
″
v
Models
870
and
890
use:
″
x0
″
and
determine
the
correct
NIC
FRU.
See
Analyze
hardware
problems
459
