System Unit or Processor Tower” on page 284 to determine which HSL port
labels you will be working with on the NIC. Record the loop’s HSL port labels
on the NIC for use in a following step or steps in this procedure. Record the
loop’s HSL port labels on the NIC for use in a following step or steps in this
procedure.
7. Determine which HSL port label the cable is connected to on the frame. The
port number indicator is in the rightmost four characters of word 5 in the
SRC. The port number indicator in word 5 identifies either the ″x0″ or ″x1″
HSL port label on the frame. Use the port number indicator and the following
table to determine if you are working with the ″x0″ port or the ″x1″ port label.
Record the port location label you will be working with on the “Appendix I.
HSL Cable Location Form” on page 971 as the ″From HSL Port Label″.
Table 36. Determining which HSL Port Label to Use
Frame ID Port Number Indicator in
Rightmost Four Characters
of Word 5
Use HSL Port Label:
0000 0000
v Models 840 / SB3 use: ″x0″
v Models 270, 820, 830 / SB2
– On loop 256 -> Neither
port, the connection is
internal to the internal
HSL I/O Bridge
– Other than loop 256
use: ″x0″
0001 Use: ″x1″
Unless
The “Converting From HSL
Loop Number to Port Labels
on the System Unit or
Processor Tower” on
page 284 indicated that the
loop is the Internal loop on
some model 270 processor
features
0002 Use: ″x0″
0003 Use: ″x1″
0001 - Models 270, 820, 830 /
SB2
0000 Internal Connection to NIC
0001 Use: ″x0″
OR
Internal to NIC on some
model 270 processor features
0001 - Model 840 / SB3 0000 Use: ″0″
0001 Use: ″1″
Other than 0000 or 0001 0000 Use: ″0″
0001 Use: ″1″
8. Are all of the following true?
a. The system model is 830 or SB2.
b. The loop number is 256 decimal (01000 hexadecimal).
c. The frame ID is 0000.
Symbolic FRUs
Chapter 3. Problem Isolation Procedures (PIPs), Failing Items, and Symbolic FRU Isolation 593
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