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Re: [LUG] Fibre broadband


On Thu, 14 Nov 2013, Neil Winchurst wrote:

On 14/11/13 12:55, Kai Hendry wrote:
They install one of these white boxes as I have photographed here:

There is a good blog
explaining why this modem is a good thing.

My FTTC experience is documented on

Hopefully you'll get better speeds than I did!

Apologies for the delayed reply to all the emails on this thread. I have was away from yesterday morning (Wed) till this afternoon (Thur).
Anyway, thanks to all so far. Am I more confused? A bit.

I get the impression that any BT engineer that comes to set my FTTC up will change the faceplate on the main phone socket. There seems also to be some mention of a router. (Obviously O already have one in use.) And there is also something about needing to have the router attached to that main socket. Have I got that right?


Currently, most people have the modem and router combined into one box. Most people just call this a router, but it's really 2 things - the modem which turns the wibbly wobbly stuff on the wire into nice digital signals the router part can work with. The router does firewalling (if needed) and NAT and usually does DHCP and sometimes DNS too (and often Wi-Fi) - functions needed by PCs on your home network. You may need a new router unless your is one that provides a separate "wan" port. (Few consumer grade ones do)

BT OpenReach, on behalf of your ISP, will change the faceplate and install a modem. This modem needs mains power.

The modem will connect to your router via Cat-5 (Ethernet) cable. This cable can be up to 100m away from the modem.

My problem is that the main BT socket here is just inside the front door, in our small entrance hall. I do have a phone connected there, but there is just no room for a desk and computer. So I have my router connected by a cable to a phone extension line in a room upstairs. Is that going to cause a problem?

Optionally, you can ask/persuade the BT man to move the socket. Provide cups of tea or coffee as requested and some nice biscuits. I think they can move it by up to 30m as part of the install, but it will depend on just how easy it is to route the cable.

It sounds like it might be easy to leave the modem by the front-door, and run Cat-5 up to your room upstairs - and if that's already cat-5 then it's easy and BT don't have to move anything. Just make sure there's a mains socket near the phone socket for the modem.


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