If I have a coaxial cable

[Xubu83]

Hey there I'm new here and I want to know that if I have a coaxial cable from my room to another room
And in the other room it's connected with a 5101 modem , and in my room the coaxial is just Hooked up to the tv.
Can I connect another modem from my coaxial cable ? And connect the modem directly to my Ps4 ?
-Thanks

If one end of the coax is connected to the modem like you say, and the other end of the coax is connected to your tv. How do you connect your modem with the internet? There is only 1 coax interface on a 5101.