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Re: Distributing AV over CAT5 network

  • To: ukha_d@xxxxxxx
  • Subject: Re: Distributing AV over CAT5 network
  • From: "Neil J. McRae" <neil@xxxxxxx>
  • Date: Sun, 09 Jan 2000 22:08:11 +0000
  • Delivered-to: rich@xxxxxxx
  • Delivered-to: listsaver-egroups-ukha_d@xxxxxxx
  • Mailing-list: contact ukha_d-owner@xxxxxxx
  • Reply-to: ukha_d@xxxxxxx
On Sun, 9 Jan 2000 19:14:25 -0000
"Graham Howe" <graham@xxxxxxx> wrote:

You can purchase AV to CAT 5 baluns, Videk in Kingsbury does
them IIRC. It should work without issues...

Regards,
Neil.

> I already have a CAT5 cabling to RJ45 outlets in several rooms in my
house.=
>  I have a central 'comms cupboard' that houses a 16 port hub and patch
pane=
> l along with my ISDN Terminal Adapter an a PC. With this set-up I can
selec=
> t any port in the house to be either a network port or with the use of
a 'm=
> od tap' a telephone port (either home or business). However I am now
wonder=
> ing if I can use this network to transmit audio and video signals from
one =
> room to another. So for example if I want to watch TV in the lounge
but my =
> daughter wants to watch a video (also located in the lounge) then
could I s=
> end the output from the video through the network to the TV in the
bedroom =
> ?
>
> In terms of wiring I was thinking of two home made scart to RJ45 CAT5
cable=
> s and a normal CAT5 loop at the patch panel to connect the lounge port
to t=
> he bedroom port. Then it would simply be a question of connecting the
video=
>  output to the port in the lounge with one home made cable and the TV
in th=
> e bedroom to a port there with the other home made cable.
>
> The first question I have is will a single CAT5 (4 twisted pairs) be
enough=
>  to carry the AV information. Obviously SCART connections have 21 pins
but =
> I think that the 4 pairs in the CAT5 cable should be sufficient.
>
> The second question is about the actual wiring of the SCART cables,
can any=
> one tell me which of the 21 pins I need to connect to on both the
video and=
>  the TV end.
>
> Finally does anyone have any experience of this type of distribution,
in pa=
> rticular will the multiple connections (all RJ45) result in noticeable
sign=
> al degradation and will interference be a problem (I estimate that the
cabl=
> e runs about 35m from lounge to comms cupboard and then 10m from comms
cupb=
> oard to bedroom).
>
> I know this isn't strictly speaking home automation but I thought
there mig=
> ht be some useful advice/opinions in this group.
>
Thanks in advance
>
> Graham
>
>
>
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> <DIV><FONT size=3D2>I already have a CAT5 cabling to RJ45
outlets in severa=
> l rooms =
>
> in my house. I have a central 'comms cupboard' that houses a 16 port
hub an=
> d =
>
> patch panel along with my ISDN Terminal Adapter an a PC. With this
set-up I=
>  can =
>
> select any port in the house to be either a network port or with the
use of=
>  a =
>
> 'mod tap' a telephone port (either home or business). However I am now
wond=
> ering =
>
> if I can use this network to transmit audio and video signals from one
room=
>  to =
>
> another. So for example if I want to watch TV in the lounge but my
daughter=
>  =
>
> wants to watch a video (also located in the lounge) then could I send
the o=
> utput =
>
> from the video through the network to the TV in the bedroom
?</FONT></DIV>
> <DIV>&nbsp;</DIV>
> <DIV><FONT size=3D2>In terms of wiring I was thinking of
two home made scar=
> t to =
>
> RJ45 CAT5 cables and a normal CAT5 loop at the patch panel to connect
the l=
> ounge =
>
> port to the bedroom port. Then it would simply be a question of
connecting =
> the =
>
> video output to the port in the lounge with one home made cable and
the TV =
> in =
>
> the bedroom to a port there with the other home made
cable.</FONT></DIV>
> <DIV>&nbsp;</DIV>
> <DIV><FONT size=3D2>The first question I have is will a
single CAT5 (4 twis=
> ted =
>
> pairs) be enough to carry the AV information. Obviously SCART
connections h=
> ave =
>
> 21 pins but I think that the 4 pairs in the CAT5 cable should be =
>
> sufficient.</FONT></DIV>
> <DIV>&nbsp;</DIV>
> <DIV><FONT size=3D2>The second question is about the
actual wiring of the S=
> CART =
>
> cables, can anyone tell me which of the 21 pins I need to connect to
on bot=
> h the =
>
> video and the TV end.</FONT></DIV>
> <DIV>&nbsp;</DIV>
> <DIV><FONT size=3D2>Finally does anyone have any
experience of this type of=
>  =
>
> distribution, in particular will the multiple connections (all RJ45)
result=
>  in =
>
> noticeable signal degradation and will interference be a problem (I
estimat=
> e =
>
> that the cable runs about 35m from lounge to comms cupboard and then
10m fr=
> om =
>
> comms cupboard to bedroom).</FONT></DIV>
> <DIV>&nbsp;</DIV>
> <DIV><FONT size=3D2>I know this isn't strictly speaking
home automation but=
>  I =
>
> thought there might be some useful advice/opinions in this
group.</FONT></D=
> IV>
<DIV>&nbsp;</DIV>
> <DIV><FONT size=3D2>Thanks in
advance</FONT></DIV>
> <DIV>&nbsp;</DIV>
> <DIV><FONT size=3D2>Graham</FONT></DIV>
>
>
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--
Neil J. McRae - Alive and Kicking
neil@xxxxxxx


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