It depends on which country you are in.
It depends what Broadband wiring setup you have.
It depends which type of cable you are talking about (see images 1 and 2 below)
In some countries, the RJ11 to RJ11 cable goes from this device into the phone Socket of an ADSL filter. One RJ45 to RJ45 cable goes from the Router into the Ethernet Socket of the ADSL Filter. Another RJ45 to RJ45 cable goes from the Router to the Computer. The ADSL Filter then goes into the Phone socket in the wall.
You need an ADSL Filter in every Phone Socket that has a telecommunications device attached to it (Fax Machines, Answering Machines, TV Set Top Boxes, games Consoles etc.). The ADSL filter separates Telehone, Voice & Fax Data traffic from Broadband traffic and allows all to share the same phone line with out conflict.
See Network Diagram below.
In some countiries or wiring setups, the RJ45 to RJ45 cable form the Router to the Wall does not need to go via the Phone Socket and can go directly into its own dedicated Ethernet Wall Socket. If this
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this question. Thanks for using FixYa IMAGE 1: RJ11 to RJ11 or ADSL MODEM or BROADBAND or TELECOMS or TELEPHONE Cable IMAGE 2:
RJ45 to RJ45 or CAT5E or LAN or ETHERNET CableDIAGRAM 1:
Typical UK Home Broadband Network Diagram
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