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Installing and Configuring Rack-Mounted Systems
June 2004 © 2004 Foundry Networks, Inc. 2 - 11
LEDs
The Foundry system front-panel LEDs indicate real-time unit status. The following table provides information
about how to interpret the various LED states. For more detailed LED descriptions, refer to the Foundry
Installation Guide: Domestic Products.
LED State Description
Off Indicates an absence of power, a deselected function, or an out-
of-service link
Green Indicates either an engaged or a properly functioning feature
Yellow Indicates an out-of-service test or a failed DC converter (Power
LED)
Green or yellow with
blinking red
Same as above conditions for green and yellow, but one or more
of the following errors have been detected on a T1 port:
Framing bit errors
CRC-6 errors (in ESF mode)
Line code violations
Red Indicates either an error, an alarm, or a loss of signal