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Optical Fiber Home Network: Splitting 100 MB/s Signal after Modem for First & Ground Floors

kam8il8 5469 6
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  • #1 16680247
    kam8il8
    Level 2  
    Hello,

    I need help with the division of the network in a single-family home. I have an optical fiber connected to the basement, then the signal goes through the modem and then goes to the first floor to the router (No. 3 in the diagram). I need to run a second cable from the basement to the ground floor of the house. I cannot run the cable through the house (too far). My question is, can I split the signal right after the modem in the basement? I have 100 Mb / s internet and I would like to divide it into two 50 Mb / s cables to the first floor and the ground floor.

    Below is a diagram of the network.

    Optical Fiber Home Network: Splitting 100 MB/s Signal after Modem for First & Ground Floors

    greetings
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  • #2 16680258
    hermes-80
    Level 43  
    If it is actually a modem from the ISP, that is, behind it you get only one IP usually public, it is a mistake to give the switch right behind it - there should be a router from which you lead cables to end devices.

    Ask the ISP in what mode this "modem" works - router or bridge (modem).
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  • #3 16680276
    kam8il8
    Level 2  
    I agree, in this case the switch is not needed. The question is whether I can physically split the cable harness to receive two signals (the cable with 8 pins should be divided by 4 pins)
    It is a pity to put a router in the basement, unless there is no other solution.
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  • #4 16680288
    hermes-80
    Level 43  
    You can do it, but the maximum recommended on such a connection is 100Mb / s.
  • #5 16680303
    kam8il8
    Level 2  
    This speed is enough for me now. I have 100 Mb / s internet, after the split it will be 2x 50Mb / s. Should the cable be divided just after the "modem" in this way?
    Optical Fiber Home Network: Splitting 100 MB/s Signal after Modem for First & Ground Floors
  • #6 16680323
    hermes-80
    Level 43  
    But what division ;) - the fact that you divide the cable into 2 does not mean that you will divide the bandwidth in the same way - a router with a bandwitch limiter or other QoS is used to divide the bandwidth. In this configuration, 100Mbps will be available on both floors

    In addition, the cable at the modem must also be divided into 2 ports.

    Remember - in this configuration the device that you insistently call a modem - it must be a router - on a typical modem this configuration will not work.
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  • #7 16680389
    m.jastrzebski
    Network and Internet specialist  
    kam8il8 wrote:
    I agree, in this case the switch is not needed. The question is whether I can physically split the cable harness to receive two signals (the cable with 8 pins should be divided by 4 pins)
    It is a pity to put a router in the basement, unless there is no other solution.

    It's not like that with a pair of cables it is 25Mbit / s. The internet wasn't like water pipes making 2 out of one with a diameter reduction.
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Topic summary

The discussion revolves around splitting a 100 Mb/s optical fiber internet signal in a single-family home. The user seeks to divide the signal after the modem located in the basement to provide connections to both the first and ground floors. Responses indicate that using a switch directly after the modem is not advisable unless the modem functions as a router. It is emphasized that a router is necessary to manage bandwidth effectively, as simply splitting the cable does not guarantee equal distribution of speed. The recommended approach is to ensure the modem is indeed a router and to utilize proper network management techniques to achieve the desired 50 Mb/s on each floor.
Summary generated by the language model.
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