Re: Geovision

["Paul Robinson" <ukcueman@xxxxxxxxxxx>]

> Can at least 1 person reply to this please as I am feeling very
lonely!!
Ooh...please don't feel lonely!

> Just bought my first Geovision GV-650-12 and so far I am very pleased
> with it!
>
> One problem I have come up against, my original system, a MV-100, was
> located in my workshop, therefore my cameras all terminate there.
>
> But now I find it might be better to locate my Geovision PC here in my
> loft conversion which means re-wiring....
>
> This is going to be a quite a task but the question is, what cable do
I
> use?
>
> I was thinking CT100, that way I could use it for Cable TV if ever I
> wish but I do have some long runs of BNC networking cable which works
> fine.
Yes. CT100 is a good choice. CT125 is a higher quality cable, but much
thicker which means
larger bend radius. CT100 is probably what you want.

If you're laying cable though, do make sure you put some extra cat5 down,
just in case...

> I could run CT100 from my Loft down through the house and terminate it
> in the rear living room then run the cables from the cameras through
to
> connect in the living room, this sounds the best solution, but do I
> still use the CT100 from the cameras to the living room or use
> networking coax?
I don't know what the specifications/characteristics are for 10base2 coax
(assuming that's
what you meant), but I'd be surprised if it was appropriate for this job.
If you do have a
join in the cable at your lounge, then that will cause additional
losses/reflections. It
would be better not to do this, although it probably won't matter.

>
> I have 4 CAT5e sockets in the workshop but 3 of these are being used.
>
> Is there such a thing as a CT100 to RJ45 converter?
Yes. The generic name for such a thing is a balun (because it converts an
unbalanced
signal to a balanced one and then there's another device at the other end
to reverse the
process). Active baluns ought to do a better job that passive ones. The
active balun of
choice around here is Keith's Kat5 and you should be able to send 4
composite signals
using kat5 down one cat5 (may need a custom unit for that though).

>
> I was also thinking of supplying the camera power from the loft, like
I
> do for a PC based CCTV system I use, and then use CAT5 to move the
video
> and the power to the required CCTV location.
cat5 can handle 4 camera signals. If you want power as well, then you'll
need to lose one
of the video signals...and then it's definitely a custom kat5 pair, if it
can be done at
all.

HTH
Paul






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