Home Network Cabling and Breakout Box

I just moved into a condo unit and saw this box in the electrical & network closet, there is no explanation from the previous owner how they did the networking, so I want to seek help from the forum here. Is it for networking or analog TV or phone lines?

The box:

In addition, my house layout is as follows, the fibre moderm is left of kitchen, through a hidden cable in the wall, it is connected to the network RJ45 port in the living room and I put a router there for my daily usage.

House layout:

There are some other "ports" but I don't know if it is for phone line or RJ45 internet around the house, I can't see them because they are behind some fixed-on-the-wall furnitures.

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David Miller

David Miller

Executive Financial & Market Analyst

David Miller brings 15 years of experience in global economics, personal finance strategy, and market dynamics. He specializes in turning complex economic trends into actionable insights for everyday readers.

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