
ERROR CODES
AND DIAGNOSTICS
UNILINK HOST
ADAPTER6–9
USER MANUAL
6.4 DIAGNOSTIC
TESTS
The UNILINK Host Adapter provides both selectable and continuous
diagnostic
tests to insure proper operation. The pattern
shown on the six LEDs,
shown
in Figure 6–1, will indicate whether the adapter is operating normally or
if
an error has occurred.
LEDsResetNumber
2
Number 1
Figure 6–1 Adapter LEDs
The
diagnostic tests verify the operation of the following.
The integrity of the diagnostics Read Only Memory (ROM).
The integrity of the adapter’s microprocessor, including its Random
Access
Memory (RAM) and communications circuits.
The
integrity of the adapter
’
s Local Line and Host media boards, power
supply,
and watchdog timer
.
The integrity of the Personality Interface Module (PIM) ROM.
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