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Chapter2 Installingthe Model5399 Remote Access ConcentratorModule
NortelNetworks 5399 Access Switch HardwareInstallation Guide
LED Indicators
When the Remote Access Con centrator is operating correctly, the
front-panel LEDs (see Figure 2-5) should appear as follows:
• Annunciator:The annunciator should be green. If the
annunciatorremains amber after completing the self-tests,
referto Chapter 4.
• Segment Connection LEDs: A steady green indicates which
Ethernet LAN segmentthe module is using.
• Module Status LEDs:
•Init: Turnsgreen when the module begins the
initializationprocess aftera power-upor reset.Typically,
this is the first LED that lights after power-up.The Init
LED turns off afterthe initial diagnostics have
successfully completed.
•Unit:Turns green after the module passes the power-up
diagnostics.If the Unit LED turnsamber, refer to
Chapter 4.
•Net: Turnsgreen after the module verifies that a valid
Ethernet connectionexists.
The Model Remote Access Concentratorperforms a series of
self-testdiagnostics each time it is reset or powered up. These
teststake about a minute to complete and cannot be deactivated.
While thesetests are running, the annunciator remains amber.
The annunciatorc hangesto green upon successful test
completion.For information about possible error conditions, see
Chapter 4.