Fast EtherHub 3500 System User’s Guide
5-12 Hardware Reference
After power on, the hub automatically performs a diagnostic
test. The diagnostic tests display results for the repeater board
via the Partition/Disable LEDs on the front panel. Test results
for the agent board can only be seen via a console connection to
the serial port. The following table shows how test results for
the repeater board are indicated by the Partition/Disable LEDs.
Partition/Disabled Test Function/Component
LED Indicator of Repeater Board
1Boot ROM
2Hub Configuration EEPROM
3RAM for Repeater Board CPU
4Repeater Information Base SRAM
5Repeater Interface Controller
7Routing Table for Internal SEM Port
8Input Queue for Internal SEM Port
9Output Queue for Internal SEM Port
10 Routing Table for External SEM Port
11 Input Queue for External SEM Port
12 Output Queue for External SEM Port
Table 5.16 Diagnostic Results for Repeater Board
The system tests each component one at a time. The
corresponding indicator will display a blinking light (ON) after
test completion to show which component failed the test. The
unit will complete the test cycle even if a problem is detected on
any component. If all Partition/Disable LEDs are off, then all the
tested components have successfully passed diagnostics. You
must have a console connected to serial port to view the results
of diagnostic testing for the agent board.