Nortel Networks 400-S manual LEDs 1 through 8 and Power LED at power-up sequence

62 Chapter 6 LEDs: support and diagnostic functions

Figure 7 Instant Internet 400-S unit LEDs

BayStack Instant Internet 400-S

1 2 3 4 5 6 7 8 Power

S1 S2 S3 S4 S5 S6 S7

10/100 Link/Activity

FDX

1 2 3 4 5 6 7 8 Power

S1 S2 S3 S4 S5 S6 S7

10/100 Link/Activity

FDX

9869EA

LEDs 1 through 8 and Power LED at power-up sequence

If a failure occurs during the power-up sequence, the Power LED glows amber, and one or more of LEDs 1 through 8 glow red. This sequence indicates a hardware problem. Call the Nortel Networks Technical Solutions Center (page 23) for assistance.

If all LEDs glow amber, or none of the LEDs illuminates, check that the power voltage selector switch setting matches your power voltage. For more information, see “Setting the voltage selector switch” on page 42.

Caution: During normal operation, the Power LED glows green, except when updating the internal flash ROM. While updating the flash memory, the Power LED glows amber. This amber LED indicates that it is not safe to turn off the unit without potentially damaging the contents of flash memory.

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