What does the internet light on Unicom's thin cat mean?

1, the internet light on Unicom's optical fiber cat is green, indicating that the line connection is normal.

2. The Internet light on Unicom Fiber Cat is not on or the red light indicates that the physical line is not connected. Please check whether the indoor interface is loose or falling off!

3. The Internet light on Unicom Fiber Cat is flashing green, indicating that there is data transmission at present.