RE: Re: Krone blocks, alarm cable, cat5, etc etc

["Andrew Walker" <andrew.walker@xxxxxxxxxxxx>]

Hi Pete,

How would you suggest the Krone blocks are fixed into the enclosure, isn't
=
the back completely plastic with dedicated hooks for a special fixing?

Double sided sticky tape? :)

Andy

-----Original Message-----
From: ukha_d@xxxxxxx [mailto:ukha_d@xxxxxxx] On Behalf Of P=
ete Church
Sent: 06 October 2009 08:06
To: ukha_d@xxxxxxx
Subject: RE: [ukha_d] Re: Krone blocks, alarm cable, cat5, etc etc

Lee

=20

I too am in this situation and actually have a "Comfort connector
block" on
my long list of things to research and buy.  Looking at the Krone blocks
they seem like quite the thing, although I would say that the 237D may be
overkill for Comfort.  Unless I've misinterpreted the notes it sounds like
the 237D has capability for 39 terminals with each terminal being able to
cope with 2 wires - so 78 wires!  Now I'm sure the power supply in Comfort
will not be able to handle that many accessories, and Lee I didn't realise
you had built Buckingham Palace!

=20

I'm thinking of the 237A which has "through capacity for 20
pairs" i.e. 20
wires each side each commoned through to their terminal opposite.  Again
these can handle 2 wires per terminal meaning four wires per through pair.
If you start thinking about commoning these up with a fly wire looping
through adjacent terminals you could create your own 237D, but split it
int=
o
two (say +12V and 0V).  Each pair of terminals would be able to take 3
incoming wires (you lose one for the flywire) so each half of the block
would be able to handle 3x10 incoming wires, which sounds a lot more like a
Comfort installation.  If you've got less wires you could even avoid
doubling up wires in terminals.

=20

Other benefit is that a 237A is =A34 whereas a pair of 237D are
=A329.=20=20

=20

I'm about to order a couple.

=20

Pete

=20

_____=20=20

From: ukha_d@xxxxxxx [mailto:ukha_d@xxxxxxx] On Behalf Of
leewild80
Sent: 05 October 2009 13:36
To: ukha_d@xxxxxxx
Subject: [ukha_d] Re: Krone blocks, alarm cable, cat5, etc etc

=20

=20=20

Hi Ian

Have just been reading this page on the Canford site:
http://www.canford.
<http://www.canford.co.uk/Products/46-104-KRONE-237DB-Module>
co.uk/Products/46-104-KRONE-237DB-Module

It suggests they can be use with stranded cable, 7/0.15 or 7/0.2 are the
preferred sizes.
I *think* 7/0.2 is typical for alarm cable, so it sounds promising in
theory...

Lee

--- In ukha_d@yahoogroups. <mailto:ukha_d%40yahoogroups.com>
com, "ianh1000=
"
<ianh1000@...> wrote:
>
> Hi Lee
>=20
> I have the same challenge with my setup. These look a neat solution
but I
doubt they would be reliable with stranded cable, I guess you could tin the
strands with a little solder.=20
>=20
> Regards
> Ian=20
>=20
> --- In ukha_d@yahoogroups. <mailto:ukha_d%40yahoogroups.com>
com, Paul
Gale <groups2@> wrote:
> >
> > I would also be interested in this - I have a similar arrangement
of 3A
term blocks (lots!)
> >=20
> > Paul.
> >=20
> >=20
> >=20
> > > -----Original Message-----
> > > From: ukha_d@yahoogroups. <mailto:ukha_d%40yahoogroups.com>
com
[mailto:ukha_d@yahoogroups. <mailto:ukha_d%40yahoogroups.com>
com] On Behal=
f
> > > Of leewild80
> > > Sent: 05 October 2009 12:39
> > > To: ukha_d@yahoogroups. <mailto:ukha_d%40yahoogroups.com>
com
> > > Subject: [ukha_d] Krone blocks, alarm cable, cat5, etc etc
> > >
> > > Hi all
> > >
> > > I have a Comfort system, with inputs from a number of PIRs -
all of
> > > which share 12v and 0v connections.
> > > Comfort itself only provides single 12v/0v connections, so
currently =
I
> > > have a not-very-ideal setup where the various PIR wires are
twisted
> > > together & shared across several ways in a 3-amp
connector block, and
> > > in the other side of the connector block I have daisy
chained some
> > > wires across to common them together.
> > >
> > > It works but it's really not ideal, not only because it's
messy as
> > > hell, but screw connectors on stranded wires are not very
reliable.
> > >
> > > Have been wondering about a better solution for a while,
like
connector
> > > strips with leaf contacts and insulated combs for commoning
together.
> > >
> > > But then I happened across another thread on here where
people mentio=
n
> > > using Krone blocks.
> > >
> > > A bit of searching suggests a couple of Krone 237D blocks
might be an
> > > ideal and neat solution - they have a flying lead that I
could connec=
t
> > > to Comfort's 12v and 0v, and all the terminals within the
block are
> > > commoned together. They even come in red and black :)
> > >
> > > A few questions if I may:
> > > 1) Does this seem a sensible idea ?
> > > 2) I presume I can use the standard Krone-type punchdown
tool that I
> > > bought for wiring cat5 faceplates ?
> > > 3) Do the blocks work reliably with stranded 6-core alarm
cable ?
> > > 4) Do the blocks work reliably with the solid cores of cat5e
cable ?
> > > 5) And (dumb question) - "normal" (237A) Krone
connectors - are
> > > terminals on both sides of these linked across so they act
just like =
a
> > > connector block ?
> > >
> > > Thanks for any help !
> > >
> > > Lee
> > >
> > >
> > >
> > > ------------------------------------
> > >
> > > Yahoo! Groups Links
> > >
> > >
> > >
> > >
> > >
> > > __________ Information from ESET NOD32 Antivirus, version of
virus
> > > signature database 4480 (20091005) __________
> > >
> > > The message was checked by ESET NOD32 Antivirus.
> > >
> > > http://www.eset. <http://www.eset.com> com
> > >
> >=20
> >=20
> > __________ Information from ESET NOD32 Antivirus, version of
virus
signature database 4480 (20091005) __________
> >=20
> > The message was checked by ESET NOD32 Antivirus.
> >=20
> > http://www.eset.
<http://www.eset.com> com
> >
>





[Non-text portions of this message have been removed]



------------------------------------