o Orange colour means 100 Mbps port speed.
Power 1 LED: Indicates that power-supply number 1 is energized;
Power 2 LED: Indicates that power-supply number 2 is energized;
Sync LED: Indicates that internal PTP clock is synchronized (when in
Boundary PTP mode);
Failsafe LED: Indicates that failsafe relay state changed, that is, normally
open contact closed and normally closed contact opened.
Figure 69: HMI LED matrix of S2020 and S2024G Switches