User's Manual

https://www.peplink.com 68 Copyright @ 2021 Peplink
Left LED
Solid – Port is connected without traffic
Blinking – Data is transferring
OFF – Port is not connected
Port Type
Auto MDI/MDI-X ports
Console & USB Ports
Console Port
Reserved for engineering use
USB Ports
For connecting 4G/3G USB modems
7.2 PeplinkMediaFast500 
7.2.1 PanelAppearance 