I was asking last week about getting cable installed for telephone. I have
booked Virgin to do an installation but I gather that the broadband comes
via the tv coax not the paired telephone cable.
I assume therefore that a router connects directly with what ever tv
terminal that they install, not the telephone box.

Kevin

"Zen83237" gurgled happily, sounding much like they
were saying:

I was asking last week about getting cable installed for telephone. I
have booked Virgin to do an installation but I gather that the broadband
comes via the tv coax not the paired telephone cable. I assume therefore
that a router connects directly with what ever tv terminal that they
install, not the telephone box.

Correct. You get a cable modem from Virgin, which you need to connect to
a router - which is different to the ones for ADSL.

www.broadbandbuyer.co.uk and go for the choices beneath the Virgin logo...

On Apr 6, 5:57*pm, Adrian wrote:
"Zen83237" gurgled happily, sounding much like they
were saying:

I was asking last week about getting cable installed for telephone. I
have booked Virgin to do an installation but I gather that the broadband
comes via the tv coax not the paired telephone cable. I assume therefore
that a router connects directly with what ever tv terminal that they
install, not the telephone box.

Correct. You get a cable modem from Virgin, which you need to connect to
a router - which is different to the ones for ADSL.

www.broadbandbuyer.co.ukand go for the choices beneath the Virgin logo...

The Virgin cable modem will have an ethernet port and any old (non-
ADSL) router will do.

MBQ

On Apr 6, 6:25*pm, "Man at B&Q" wrote:
On Apr 6, 5:57*pm, Adrian wrote:

"Zen83237" gurgled happily, sounding much like they
were saying:

I was asking last week about getting cable installed for telephone. I
have booked Virgin to do an installation but I gather that the broadband
comes via the tv coax not the paired telephone cable. I assume therefore
that a router connects directly with what ever tv terminal that they
install, not the telephone box.

Correct. You get a cable modem from Virgin, which you need to connect to
a router - which is different to the ones for ADSL.

www.broadbandbuyer.co.ukandgo for the choices beneath the Virgin logo...

The Virgin cable modem will have an ethernet port and any old (non-
ADSL) router will do.

MBQ

On 06/04/2010 17:57, Adrian wrote:
gurgled happily, sounding much like they
were saying:

I was asking last week about getting cable installed for telephone. I
have booked Virgin to do an installation but I gather that the broadband
comes via the tv coax not the paired telephone cable. I assume therefore
that a router connects directly with what ever tv terminal that they
install, not the telephone box.

Correct. You get a cable modem from Virgin, which you need to connect to
a router - which is different to the ones for ADSL.

www.broadbandbuyer.co.uk and go for the choices beneath the Virgin logo...

Though unless something has changed, you can connect a single PC
directly to the cable modem.

We have our cable TV in one room downstairs and the cable modem (and our
wireless router) upstairs.

The cable telephone is on a separate wire.

--
Rod

"Zen83237" wrote in message
...
I was asking last week about getting cable installed for telephone. I have
booked Virgin to do an installation but I gather that the broadband comes
via the tv coax not the paired telephone cable.
I assume therefore that a router connects directly with what ever tv
terminal that they install, not the telephone box.

This is the case as long as you are in a cable area, virgin do do adsl in
none cable areas.

John Rumm wrote:
Zen83237 wrote:
I was asking last week about getting cable installed for telephone. I
have booked Virgin to do an installation but I gather that the
broadband comes via the tv coax not the paired telephone cable.
I assume therefore that a router connects directly with what ever tv
terminal that they install, not the telephone box.

They will provide a cable modem (typically by Cisco at the moment it
seems) with a single ethernet port on it. You can also elect to have
them provide a 4 port wired/wireless router (DLink), or provide your
own. The modem will come with some additional co-ax fly-leads and a F
type two port RF splitter to insert between the cable entry point and
the TV box. Hence allowing a split to the cable modem.

In mine, the cable enters the house, runs round for a bit and ends up at
a two-port F-type wall outlet in the living room, one of which port is
blanked off with a screw-on blanking plug (it appears to be intended for
FM radio, but doesn't seem to work as I once tried connecting it to the
hifi without success). The second port of the wall outlet connects to
a second, in-line, 2-port F-type splitter which divides the cable
between the cable modem and TV box.

Out of interest - because I'd like to do it to mine - is there any
reason why I shouldn't move the in-line splitter so it's before the wall
outlet? ie, is the wall outlet just a simple splitter too? That would
be much better as I could then site the cable modem with my PC kit,
rather than having it contribute to the spaghetti pile behind the TV in
the living room.

David

"Lobster" wrote in message
...
John Rumm wrote:
Zen83237 wrote:
I was asking last week about getting cable installed for telephone. I
have booked Virgin to do an installation but I gather that the broadband
comes via the tv coax not the paired telephone cable.
I assume therefore that a router connects directly with what ever tv
terminal that they install, not the telephone box.

They will provide a cable modem (typically by Cisco at the moment it
seems) with a single ethernet port on it. You can also elect to have them
provide a 4 port wired/wireless router (DLink), or provide your own. The
modem will come with some additional co-ax fly-leads and a F type two
port RF splitter to insert between the cable entry point and the TV box.
Hence allowing a split to the cable modem.

In mine, the cable enters the house, runs round for a bit and ends up at a
two-port F-type wall outlet in the living room, one of which port is
blanked off with a screw-on blanking plug (it appears to be intended for
FM radio, but doesn't seem to work as I once tried connecting it to the
hifi without success). The second port of the wall outlet connects to a
second, in-line, 2-port F-type splitter which divides the cable between
the cable modem and TV box.

Out of interest - because I'd like to do it to mine - is there any reason
why I shouldn't move the in-line splitter so it's before the wall outlet?
ie, is the wall outlet just a simple splitter too? That would be much
better as I could then site the cable modem with my PC kit, rather than
having it contribute to the spaghetti pile behind the TV in the living
room.

Its not a splitter, its a filter.
Don't do anything to it or they may bill you.
If you do move it, or alter the wires before it you may alter the levels of
everyone on that bit of the cable and may require someone to come out and
adjust it, if they find its you they can charge you.

I have often thought about doing something with the redundant one I have to
see what intermittent faults I could put into the cable network now I am on
Sky and can actually get some broadband speeds all times of the day. Skys
18M speed really is 18M all day.

In article , Rod
scribeth thus
On 06/04/2010 17:57, Adrian wrote:
gurgled happily, sounding much like they
were saying:

I was asking last week about getting cable installed for telephone. I
have booked Virgin to do an installation but I gather that the broadband
comes via the tv coax not the paired telephone cable. I assume therefore
that a router connects directly with what ever tv terminal that they
install, not the telephone box.

Correct. You get a cable modem from Virgin, which you need to connect to
a router - which is different to the ones for ADSL.

www.broadbandbuyer.co.uk and go for the choices beneath the Virgin logo...

Though unless something has changed, you can connect a single PC
directly to the cable modem.


You can .. tho you wouldn't want to at least a router offers NAT fire
walling protection!...


We have our cable TV in one room downstairs and the cable modem (and our
wireless router) upstairs.

The cable telephone is on a separate wire.


--
Tony Sayer

John Rumm wrote:
Zen83237 wrote:
I was asking last week about getting cable installed for telephone. I
have booked Virgin to do an installation but I gather that the
broadband comes via the tv coax not the paired telephone cable.
I assume therefore that a router connects directly with what ever tv
terminal that they install, not the telephone box.

Sort or - yes it comes via the co-ax cable they install, however it is
not provided by the TV box.

They will provide a cable modem (typically by Cisco at the moment it
seems) with a single ethernet port on it. You can also elect to have
them provide a 4 port wired/wireless router (DLink), or provide your
own. The modem will come with some additional co-ax fly-leads and a F
type two port RF splitter to insert between the cable entry point and
the TV box. Hence allowing a split to the cable modem.

After reading all the above, I am now confused.

We are with BT's Open World with a home hub and we have two computers,
sometimes three, hard wired to the hub and I am thinking of taking the
offer of joining Virgin. We have fibre optic cable just off the
property, so no problem there.

What extras will I need to run up to 3 computers off the cable?

Dave

Dave wrote:
John Rumm wrote:
Zen83237 wrote:
I was asking last week about getting cable installed for telephone. I
have booked Virgin to do an installation but I gather that the
broadband comes via the tv coax not the paired telephone cable.
I assume therefore that a router connects directly with what ever tv
terminal that they install, not the telephone box.

Sort or - yes it comes via the co-ax cable they install, however it is
not provided by the TV box.

They will provide a cable modem (typically by Cisco at the moment it
seems) with a single ethernet port on it. You can also elect to have
them provide a 4 port wired/wireless router (DLink), or provide your
own. The modem will come with some additional co-ax fly-leads and a F
type two port RF splitter to insert between the cable entry point and
the TV box. Hence allowing a split to the cable modem.

After reading all the above, I am now confused.

We are with BT's Open World with a home hub and we have two computers,
sometimes three, hard wired to the hub and I am thinking of taking the
offer of joining Virgin. We have fibre optic cable just off the
property, so no problem there.

What extras will I need to run up to 3 computers off the cable?

Dave
The fibre does not come into the house. An RF coaxial cable plus three
twisted pairs for phone comes to the house instead.

VM provide the hardware for a single computer or a router as already
stated. Just plug the leads to the computer into the router.
You should not need any extra hardware.

Bob

In article , Dave
scribeth thus
John Rumm wrote:
Zen83237 wrote:
I was asking last week about getting cable installed for telephone. I
have booked Virgin to do an installation but I gather that the
broadband comes via the tv coax not the paired telephone cable.
I assume therefore that a router connects directly with what ever tv
terminal that they install, not the telephone box.

Sort or - yes it comes via the co-ax cable they install, however it is
not provided by the TV box.

They will provide a cable modem (typically by Cisco at the moment it
seems) with a single ethernet port on it. You can also elect to have
them provide a 4 port wired/wireless router (DLink), or provide your
own. The modem will come with some additional co-ax fly-leads and a F
type two port RF splitter to insert between the cable entry point and
the TV box. Hence allowing a split to the cable modem.

After reading all the above, I am now confused.

We are with BT's Open World with a home hub and we have two computers,
sometimes three, hard wired to the hub and I am thinking of taking the
offer of joining Virgin. We have fibre optic cable just off the
property, so no problem there.

What extras will I need to run up to 3 computers off the cable?

Dave

U need a cable modem type router thats a router less an ADSL modem in
it.

Most makes do one like this for instance..

http://www.netgear.co.uk/wireless_fi...ter_wgr614.php

The Virgin cable modem connects the line and then your router connects
to that and then your PC's plug into that and you can take a wireless
connection off that if required.

Just dun one for a Mate and all is OK with this model..

--
Tony Sayer

"dennis@home" wrote in message
...


"Zen83237" wrote in message
...
I was asking last week about getting cable installed for telephone. I
have booked Virgin to do an installation but I gather that the broadband
comes via the tv coax not the paired telephone cable.
I assume therefore that a router connects directly with what ever tv
terminal that they install, not the telephone box.

This is the case as long as you are in a cable area, virgin do do adsl in
none cable areas.

Yep Virgin really do do ADSL but don't touch it a barge pole unless its via
Cable&Wireless LLU.

--
Mike

dennis@home wrote:


"Lobster" wrote in message
...
John Rumm wrote:
Zen83237 wrote:
I was asking last week about getting cable installed for telephone.
I have booked Virgin to do an installation but I gather that the
broadband comes via the tv coax not the paired telephone cable.
I assume therefore that a router connects directly with what ever tv
terminal that they install, not the telephone box.

They will provide a cable modem (typically by Cisco at the moment it
seems) with a single ethernet port on it. You can also elect to have
them provide a 4 port wired/wireless router (DLink), or provide your
own. The modem will come with some additional co-ax fly-leads and a F
type two port RF splitter to insert between the cable entry point and
the TV box. Hence allowing a split to the cable modem.

In mine, the cable enters the house, runs round for a bit and ends up
at a two-port F-type wall outlet in the living room, one of which port
is blanked off with a screw-on blanking plug (it appears to be
intended for FM radio, but doesn't seem to work as I once tried
connecting it to the hifi without success). The second port of the
wall outlet connects to a second, in-line, 2-port F-type splitter
which divides the cable between the cable modem and TV box.

Out of interest - because I'd like to do it to mine - is there any
reason why I shouldn't move the in-line splitter so it's before the
wall outlet? ie, is the wall outlet just a simple splitter too? That
would be much better as I could then site the cable modem with my PC
kit, rather than having it contribute to the spaghetti pile behind the
TV in the living room.

Its not a splitter, its a filter.
Don't do anything to it or they may bill you.
If you do move it, or alter the wires before it you may alter the levels
of everyone on that bit of the cable and may require someone to come out
and adjust it, if they find its you they can charge you.

Wow - seriously? So not only must I not move the internet/TV splitter
upstream of the wall outlet/filter, but I can't even move the wall
outlet? :-( Better to find out now than later I suppose...

OK. how about if I disconnected the filter (it has F-connectors on both
sides) and reconnected it in the next room without changing the length
of coax cable - surely that would be OK? Or would the act of briefly
disconnecting it bring round the boys from Virgin media? (But can I
definitely not shorten the cable by a couple of metres?)

That way I could at least site the filter alongside the cable modem with
the PC kit, and just have a single coax lead from the filter through the
wall to the TV in the next room...

David

Bob Minchin wrote:
Dave wrote:
John Rumm wrote:
Zen83237 wrote:
I was asking last week about getting cable installed for telephone. I
have booked Virgin to do an installation but I gather that the
broadband comes via the tv coax not the paired telephone cable.
I assume therefore that a router connects directly with what ever tv
terminal that they install, not the telephone box.

Sort or - yes it comes via the co-ax cable they install, however it is
not provided by the TV box.

They will provide a cable modem (typically by Cisco at the moment it
seems) with a single ethernet port on it. You can also elect to have
them provide a 4 port wired/wireless router (DLink), or provide your
own. The modem will come with some additional co-ax fly-leads and a F
type two port RF splitter to insert between the cable entry point and
the TV box. Hence allowing a split to the cable modem.

After reading all the above, I am now confused.

We are with BT's Open World with a home hub and we have two computers,
sometimes three, hard wired to the hub and I am thinking of taking the
offer of joining Virgin. We have fibre optic cable just off the
property, so no problem there.

What extras will I need to run up to 3 computers off the cable?

Dave
The fibre does not come into the house. An RF coaxial cable plus three
twisted pairs for phone comes to the house instead.

VM provide the hardware for a single computer or a router as already
stated. Just plug the leads to the computer into the router.
You should not need any extra hardware.

Thanks for that Bob

Dave

tony sayer wrote:
In article , Dave
scribeth thus
John Rumm wrote:
Zen83237 wrote:
I was asking last week about getting cable installed for telephone. I
have booked Virgin to do an installation but I gather that the
broadband comes via the tv coax not the paired telephone cable.
I assume therefore that a router connects directly with what ever tv
terminal that they install, not the telephone box.
Sort or - yes it comes via the co-ax cable they install, however it is
not provided by the TV box.

They will provide a cable modem (typically by Cisco at the moment it
seems) with a single ethernet port on it. You can also elect to have
them provide a 4 port wired/wireless router (DLink), or provide your
own. The modem will come with some additional co-ax fly-leads and a F
type two port RF splitter to insert between the cable entry point and
the TV box. Hence allowing a split to the cable modem.
After reading all the above, I am now confused.

We are with BT's Open World with a home hub and we have two computers,
sometimes three, hard wired to the hub and I am thinking of taking the
offer of joining Virgin. We have fibre optic cable just off the
property, so no problem there.

What extras will I need to run up to 3 computers off the cable?

Dave

U need a cable modem type router thats a router less an ADSL modem in
it.

Most makes do one like this for instance..

http://www.netgear.co.uk/wireless_fi...ter_wgr614.php

The Virgin cable modem connects the line and then your router connects
to that and then your PC's plug into that and you can take a wireless
connection off that if required.

Just dun one for a Mate and all is OK with this model..

Thanks again

Dave

"John Rumm" wrote in message
...
dennis@home wrote:

"John Rumm" wrote in message
o.uk...

This does not tally with the installations I have seen locally. The wall
outlet box may or may not have a filter etc I don't know never having
looked in one.

How do you know it doesn't tally if you have never looked?

I have looked at the splitter, and by design that is all that it is, a
splitter not a filter...

However the splitter they supply was a bog standard off the shelf F type
RF splitter.

They are all off the shelf parts.
You can even buy the cable headends if you can a££ord them.

It does not matter where that is inserted or what equipment is connected
to which leg of it after the main wall port. (in fact as I accidentally
discovered the other day it works with two of them in circuit and 30
yards of dangling unterminated co-ax hanging off one side. (customer had
forgotten last time they had cable before moving out for renovations
they had it split to deliver a cable to an upstairs room as well!)

That is the purpose of them, to balance the lines and cut down
reflections, etc.

If we are still talking about the splitter, then that is twaddle. The
splitter is similar to:

I have never been talking about the splitter, however a properly designed
splitter is a filter designed to maintain the impedance across the outputs.
Even the cheap ones usually have a star network of resistors to give some
sort of balance.


http://cpc.farnell.com/labgear/fbs40...ass/dp/AP02109

You may get away with chopping the cable before the first filter, you may
not, it is different for each installation.

If there is a filter, it will be in the wall outlet plate - which is the
first termination of the cable on entry. Which I fully accept (depending
on the content of the wall plate), you may have problems interfering with
the cable before that.

However since the cable length on the consumers side of the wall plate is
variable, and the splitter may not even be present, it seems pointless
bestowing mystic powers on the splitter.

I accidentally did something similar with a thin net, as a result some
computers could not see others and it was different for each computer. It
caused null points as the reflections caused by the impedance change
cancelled the signals out.

Indeed it might - a completely different situation however. Thin ethernet
is a CSMA-CD technology that relies on subtle cable voltage sensing to
maintain the contention detection. DOCSIS as used over CATV networks is a
TDMA system giving deterministic access.

You missed the point, the problems were caused by impedance mismatches
causing some bits of the network to not see the signals while others could.

"John Rumm" wrote in message
o.uk...
dennis@home wrote:

"John Rumm" wrote in message
...
dennis@home wrote:

That is the purpose of them, to balance the lines and cut down
reflections, etc.

If we are still talking about the splitter, then that is twaddle. The
splitter is similar to:

I have never been talking about the splitter

My apologies. I must have misinterpreted what you said ("Its not a
splitter, its a filter.") in reply to lobster, when he said:

"Out of interest - because I'd like to do it to mine - is there any reason
why I shouldn't move the in-line splitter so it's before the wall outlet?"

I see your point. Sorry if I confused you by not being careful enough in my
reply.


I accidentally did something similar with a thin net, as a result some
computers could not see others and it was different for each computer.
It caused null points as the reflections caused by the impedance change
cancelled the signals out.

Indeed it might - a completely different situation however. Thin
ethernet is a CSMA-CD technology that relies on subtle cable voltage
sensing to maintain the contention detection. DOCSIS as used over CATV
networks is a TDMA system giving deterministic access.

You missed the point, the problems were caused by impedance mismatches
causing some bits of the network to not see the signals while others
could.

I got your point, but was highlighting that thin ethernet is highly
vulnerable to disruption in operation due to mismatches arising from
improper termination because of the nature of its collision detection
mechanism. CATV networks are far more resilient, and won't cease to
function as a result of an unterminated co-ax.