User's Manual

https://www.peplink.com 58 Copyright @ 2021 Peplink
Left LED
Blinking – Data is transferring
OFF – Port is not connected
Port Type
Auto MDI/MDI-X ports
Console and USB Ports
Console Port
Reserved for engineering use
USB Ports
For connecting a 4G/3G USB modem
6.17 PeplinkBalance580X 
6.17.1 PanelAppearance 