DEFINITY Enterprise Communications Server Release 7
Maintenance for R7r
555-230-126 Issue 4
June 1999
LED Interpretation
7-8Switch Node Interface LEDs
7
Figure 7-2. Duplication Interface Circuit Pack LEDs
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 traditiona l meaning, where
red indicates an alar m condition, and g reen indicates testing in progress.
The yellow LED displays various flashing patterns to provide status information
useful in isolating faults in the fiber link a nd other components c onnected to the
fiber link. Table 7-3 illustrates the SNI yellow LED states.
SPE-Select Switch
SPE-Select LED (Red)
Alarm LED (Red)
Test LED (Green)
Busy LED (Yellow)
O
O
O
SPE
AUTO
Override
B A O
O