How do I know if my Ethernet IO Module is connected to a network? - Brainboxes

Left: status light red/yellow flashing no connection, right: status green, link flashing green, good connection

The LED lights on the Network RJ45 socket (AKA MagJack) indicate whether there is a good network connection or not.

When there is no network connection the STATUS light will flash red/orange. (see image on left)

When there is a good network connection the STATUS light will be solid green (see image on right).