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Circuit pack LEDs
Issue 1 June 2005 265
Figure 3: TN1654 DS1CONV circuit pack
.
Switch Node Interface LEDs
The Switch Node Interface (SNI) TN573 circuit pack has the standard red, green, and yellow
LEDs. The red and green LEDs have the traditional meaning, where red indicates an alarm
condition, and green indicates testing in progress.
The yellow LED displays various flashing patterns to provide status information useful in
isolating faults in the fiber link and other components connected to the fiber link.
INSET
0015_0 RBP052396