0
My father designed and built a large house about 10 years ago. Back then, internet was not 'popular' and so when it came to communication facility, he chose to install a PABX and ran all the wires inside wall, but didn't really use it.
Last year, we installed internet and wifi. The problem is that wifi can only cover a limited area, not the whole house. So right now, we have the telephone line from ISP, the wireless modem router, a PABX as pictured in the central room, and RJ45 outlet connections in every other room.
To get internet in every room, can I simply connect the wireless modem router to the PABX system - router outlet is RJ45 while PABX inlet is RJ11, should there be a problem?
Or do I have to connect the ISP telephone line to PABX system, then get a modem for each room? Connecting ISP line to PABX is fine (both RJ11) but outlet connection in each room is RJ45 while modem requires RJ11 inlet.
Or should I just get a wifi repeater, or a super strong wireless router? We want a setup that minimizes additional physical wirings, except from those wires already running inside the wall.
This setup means that I can throw the PBX away right, i.e. connecting the cables straight into router's LAN ports? – Minh Tri Tran – 2017-02-02T08:07:31.070
What you do with the PBX depends on whether you still want landline telephone service or not. If everyone has mobile phones and you don't need a landline anymore, then sure, get rid of the PBX. – Spiff – 2017-02-02T15:22:51.597
What if the cables are not Cat5? Can I use PBX to split the telephone signal, and then in each room, use a separate modem to convert it to internet through the DSL port? – Minh Tri Tran – 2017-02-03T01:05:31.953
1No, if the cables are just voice grade (Cat 3), there aren't many good options. You could do old 10Mbps 10BASE-T Ethernet over it, I suppose. A PBX isn't a signal splitter, it's an automated physical switch, that physically connects different phone line extensions together based on how the user dials the phone. It's very specific to landline telephone service, and doesn't do anything for DSL. You can't hook more than one DSL modem to the same phone line, no matter what. The DSLAM at the ISP has no way to handle multiple DSL modems on the same line. – Spiff – 2017-02-03T01:21:37.173
Oh very well explained. I understand now. Many thanks. – Minh Tri Tran – 2017-02-03T02:14:37.503