Off-Board Loopback Testing; Replacement Of The Pca Board - HP 3000 Series Installation And Service Manual

Ma intenance
j.
If LED combination 7-0 is being displayed (indicating the
successful completion of the self test), run DSM for more
extensive troubleshooting. (Refer to the support- user/DSM
operations described in the HP 300l0A / 30020A Intelligent
Network Processor Diagnostic Procedures Manual.)
k. If any other combina tion of ligh ted LEDs (not already covered
in steps f through j)
is being displayed as a result of your
having pressed the RESTART switch in step d, replace the INP
PCA board (part no. 30020-60001). (See paragraph 5-18,
"Replacement of the PCA Board".)
NOTE
Whe n send ing PCA boards to the fac tory
for replacement, refer to paragraph
5-19, "Resh ipment Ins tr uct ions".
Include in the package your noted obser-
vations from step bi they may be help-
ful during factory-level trouble-
shooting. Also, if a 5-0 or 3-0 LED
pattern was observed in step b, an INP
dump file may have been created in
PUB.SYS (labeled INPLOGnn , where nn is
in the range from 00 to 99). If they
can be located, these INPLOG files
should also be included in the package
with the defective equipment. (See
Appendix B for further information on
the INP dump files.)
5-15. Off-board Loopback Testing
When support-user diagnostic testing is required beyond the phy-
sical limits of the INP PCA board, certain portions of the data
communications network can be synthesized. A test hood and a
test connector are included with certain cable options. These
test attachments are used with the off-board loopback tests des-
cribed in the HP 30010A / 30020A Intelligent Network Processor
Diagnostic Procedures Manual. The test hood and test connector
are illustrated in figure 1-1 and listed by part number in table
1-2. The test attachments are used as follows:
of
Run
With the modem cable disconnected from the edge connector
the INP PCA board, attach the test hood in its place.
Test Group 6 of DSM.
b. If the test group passes (indicating that the problem is
or iginating from somewhere "farther downstream"), remove the
test hood and reconnect the modern cable to the INP peA board.
Disconnect the other end of the modern cable from the modern,
and attach the test connector to the modern cable in place of
the modern. Repeat Test Group 6 of DSM.
a.
5-10