Enterasys Networks Fast Network 10 manual Power-up LED Sequence, Specific Power-up Tests

Chapter 6: FN10 Diagnostics and Troubleshooting

6.1.1 Power-up LED Sequence

When you power-up the FN10, the following occurs:

1.All LEDs, except for the Port Link LEDs, turn on for one second.

2.The Power (Pwr) LED remains on.

3.The Ready LED starts flashing.

4.After several seconds, the Port Link LEDs turn on briefly.

5.After several more seconds, the Ready LED will stay on, indicating that the power-up diagnostics sequence is complete.

In addition, the Port Link LEDs will turn on for those ports with good links and the Segment Status LEDs will turn on (or flash) when the selected status condition is present.

NOTE

If a critical component fails diagnostics, the Ready LED will turn off and the FN10 will attempt to reboot. If the Ready LED does not stay on, contact Cabletron Systems Technical Support.

Refer to Section 1.2.

6.1.2 Specific Power-up Tests

The power-up diagnostic tests performed on the FN10 include:

•ROM checksum test

•Instruction/Data memory test

•Memory map test

•Interrupt test

•Packet memory test

•Shared RAM component test

•Ethernet data loopback test

Page 6-2 Fast Network 10 User Guide