Accton Technology SWITCHUB-2S 100BASE-TX - Manual (Page 21)

SwitcHub-2s User’s Guide
Hardware Description 2-7
Diagnostics Display Mode
Color: Green
Active LED: Diag
Function: Indicates that the system is in Diagnostic mode. (Refer to the
Configure Button section earlier in this chapter for instructions on
how to select the display mode.)
After power on, the hub automatically performs a self-diagnostic test. This test is
done in two stages. The first stage is the System Diagnostic Test, and the second
stage is the Port Diagnostic Test. If a problem is detected, the current diagnostic
process (i.e., system or port test) will continue until completed. If the test is not
completed successfully, the corresponding LEDs (described below) will flash
after test completion to indicate which component failed the test.
System Diagnostic Test
The following table describes the system level failures and corresponding
indicators. If a problem is detected, the Statistical Indicators in the eighth column
(
90 + ) in both rows will flash to indicate that the device failed the test. The
following indicator will also flash to indicate the failure condition.
LED Indicator
(Row, Column)
Color Component Tested
1,1 (1%) Green System ROM
1,2 (5%) Green System EEPROM