HP 30240A Installation And Service Manual page 48

Maintenance
I
CAUTION
I
PRESSING THE LANIC TEST SWITCH PERFORMS A HARD RESET ON
THE LANIC CARD BEFORE THE SELF-TEST IS INITIATED.
NETWORKING OPERATIONS IN PROGRESS WILL BE DISRUPTED BY
PRESSING THE RESET SWITCH. ONCE SELF-TEST HAS STARTED,
ALLOW IT TO COMPLETE PRIOR TO PRESSING THE SWITCH AGAIN.
PRESSING THE SELF-TEST SWITCH WHEN THE LINK IS OPEN OR
WHILE SELF-TEST IS ACTIVE HAS A SLIGHT POSSIBILITY OF
CRASHING THE SYSTEM.
To run the LANIC self -test, perform the following:
1. Determine that the LANIC is not in use. This can be done by typing
:SHOWDEV
nn
at any terminal on the system, where nn is the logical device number of the LANIC. If you see
LDEV
36
AVAIL
AVAIL
OWNERSHIP VOL • . . etc.
or something similar, the LANIC is not in use. If you see
LDEV
36
AVAIL OWNERSHIP
UNAVAIL SYS #1
VOL . . •etc.
the LANIC is probably in use, and you should do a
NETCONTROL NET=xxx;STOP
before proceeding.
2. Open the computer card cage door and observe the self-test LEOs (see figure 4-1 for the locations of
the LEOs). Note whether the LEDs indicate normal activity or whether the ST
/*
LED is blinking
slowly and LEDs H through N are displaying a steady pattern. If a steady pattern is being displayed
by LEOs H through N, make a written record of which LEDs are lit. (This information may be needed
later if the problem is intermittent.)
3. Press the LANIC TEST RESET switch (see figure 4-1) to initiate the self -test.
4. Observe the self -·test LEDs. Refer to table 4-1 for the meanings of the various LED patterns. If the
self -test completes with no errors, the self -test LED (ST
/*)
will be on and LEOs H through N will be
off (a code of all zeros) for a period of five seconds. After five seco'nds, the ST
/*
LED will go off and
LEOs H through N will reflect activity on the LANIC. If the self-test fails, the code of the test that
failed will be displayed by LEOs H through N and the ST
/*
LED will blink slowly for at least 20
seconds (allowing time for the code to be noted).
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