LED states

Off

No discernable light emitted.

On

No discernable intensity variation, full-bright.

Activity flicker

The port LED switches to full-bright to indicate that traffic is passing through the port. If the port LED is steady full-bright, the port utilization is continuous.

Half-bright

No discernable intensity variation, intensity is 50% of full-bright.

Slow Flash

0.8s on / 0.8s off

Fast Flash

0.4s on / 0.4s off