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Terminating CAT 5 cables

 
 
Aosmosis
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      05-07-2011, 12:24 PM
I have a 6 pairs of CAT5 cables that have no RJ45 connectors, 1 of
which carries the signal from my ADSL router.
Is there anything that exists that combines all the wires so the other
5 wires have internet. Worst case would be to crimp all the wires with
RJ45s and plug them into a hub.
What I am looking for is like a punch down terminal board so they all
get combined.

Where can I get one from?

Many thanks.
 
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Rob Morley
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      05-07-2011, 12:43 PM
On Sat, 7 May 2011 05:24:27 -0700 (PDT)
Aosmosis <(E-Mail Removed)> wrote:

> I have a 6 pairs of CAT5 cables that have no RJ45 connectors, 1 of
> which carries the signal from my ADSL router.
> Is there anything that exists that combines all the wires so the other
> 5 wires have internet. Worst case would be to crimp all the wires with
> RJ45s and plug them into a hub.
> What I am looking for is like a punch down terminal board so they all
> get combined.
>

Your "worst case" is the only way to go, the hub in this case will
presumably be a switch, which is smarter than a dumb hub, which in turn
is more than just something that connects the wires together.

 
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Species8472
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      05-07-2011, 01:27 PM
On 5/7/2011 1:24 PM, Aosmosis wrote:
> I have a 6 pairs of CAT5 cables that have no RJ45 connectors, 1 of
> which carries the signal from my ADSL router.
> Is there anything that exists that combines all the wires so the other
> 5 wires have internet. Worst case would be to crimp all the wires with
> RJ45s and plug them into a hub.
> What I am looking for is like a punch down terminal board so they all
> get combined.
>
> Where can I get one from?
>
> Many thanks.

The cables are point to point, not a bus - so they will need to be
individually terminated by something "electronic". You cannot just
connect them in parallel, for "internet" use.

There are things such as the following, which avoids the need to put
connectors on the ends of your wires - but you still need patch cables
and something "electronic" for the other ends of the patch cables to
plug into - eg a hub or switch.

http://www.jksystemsllc.com/cp-h628.pdf
 
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John Weston
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      05-07-2011, 01:31 PM
In article <6f6ad565-2fd4-4bf9-8f58-
(E-Mail Removed)>, (E-Mail Removed) says...
>
> I have a 6 pairs of CAT5 cables that have no RJ45 connectors, 1 of
> which carries the signal from my ADSL router.
> Is there anything that exists that combines all the wires so the other
> 5 wires have internet. Worst case would be to crimp all the wires with
> RJ45s and plug them into a hub.
> What I am looking for is like a punch down terminal board so they all
> get combined.


You can't simply connect all the cables together...

How about getting RJ45 sockets with punch-down connections and install
them into wall mounted housing (see Solwise or others)? You then need
patch cables to connect from those with computers, etc. to wire then to
a LAN switch which does the management of the signals between the
sources and destination. This way,you build your in-house LAN and it
would be neater than having trailing (solid?) cables that needed to be
have the correct type of plug crimped onto them (not a good idea onto
single core solid wires) before connecting them into the LAN switch

--
John W
 
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Zapp Brannigan
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      05-07-2011, 01:41 PM
Aosmosis wrote:
> I have a 6 pairs of CAT5 cables that have no RJ45 connectors, 1 of
> which carries the signal from my ADSL router.
> Is there anything that exists that combines all the wires so the other
> 5 wires have internet. Worst case would be to crimp all the wires with
> RJ45s and plug them into a hub.
> What I am looking for is like a punch down terminal board so they all
> get combined.


Crimping RJ45's on each cable and buying an 8-port switch is the only
sensible option.


 
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Rob Morley
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      05-07-2011, 02:12 PM
On Sat, 7 May 2011 14:41:50 +0100
"Zapp Brannigan" <(E-Mail Removed)> wrote:

> Aosmosis wrote:
> > I have a 6 pairs of CAT5 cables that have no RJ45 connectors, 1 of
> > which carries the signal from my ADSL router.
> > Is there anything that exists that combines all the wires so the
> > other 5 wires have internet. Worst case would be to crimp all the
> > wires with RJ45s and plug them into a hub.
> > What I am looking for is like a punch down terminal board so they
> > all get combined.

>
> Crimping RJ45's on each cable and buying an 8-port switch is the only
> sensible option.
>
>

Not necessarily - as someone else pointed out he could use RJ45
sockets with punchdown connectors then run patch cables to the
switch. I tend to just run long patch cables where they're needed,
drilling holes in ceilings as I go, but this house was built long before
anyone had thought of structured cabling and doesn't have utility ducts
for central heating or anything else.

 
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Tim Streater
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      05-07-2011, 10:05 PM
In article
<6f6ad565-2fd4-4bf9-8f58-(E-Mail Removed)>,
Aosmosis <(E-Mail Removed)> wrote:

> I have a 6 pairs of CAT5 cables that have no RJ45 connectors, 1 of
> which carries the signal from my ADSL router.
> Is there anything that exists that combines all the wires so the other
> 5 wires have internet. Worst case would be to crimp all the wires with
> RJ45s and plug them into a hub.
> What I am looking for is like a punch down terminal board so they all
> get combined.


That is not how twisted pair ethernet is designed to work. Even if you
were able to do that, the router would keep seeing different MAC
addresses at the other end and would get confused. Further, I expect
collision detection would fail to work properly also, so you might well
see a lot of dropped packets on your "LAN".

Had this problem at SLAC when I worked there,although this was on a
thin-net segment rather than twisted pair. The segment was already near
maximum legal length, but fucking physicists thought they knew better,
and extended its length with some of their own 50-ohm cable. But it was
very thin, so its DC resistance was quite high, and collision detection
failed. Lots of dropped packets, and complaints from other users on that
segment.

In short, terminate those cables with RJ45 connectors and but a switch.

--
Tim

"That excessive bail ought not to be required, nor excessive fines imposed,
nor cruel and unusual punishments inflicted" -- Bill of Rights 1689
 
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Zapp Brannigan
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      05-08-2011, 06:16 PM
Rob Morley wrote:
> On Sat, 7 May 2011 14:41:50 +0100
> "Zapp Brannigan" <(E-Mail Removed)> wrote:
>
>> Aosmosis wrote:
>>> I have a 6 pairs of CAT5 cables that have no RJ45 connectors, 1 of
>>> which carries the signal from my ADSL router.
>>> Is there anything that exists that combines all the wires so the
>>> other 5 wires have internet. Worst case would be to crimp all the
>>> wires with RJ45s and plug them into a hub.
>>> What I am looking for is like a punch down terminal board so they
>>> all get combined.

>>
>> Crimping RJ45's on each cable and buying an 8-port switch is the only
>> sensible option.
>>
>>

> Not necessarily - as someone else pointed out he could use RJ45
> sockets with punchdown connectors then run patch cables to the
> switch. I tend to just run long patch cables where they're needed,
> drilling holes in ceilings as I go, but this house was built long before
> anyone had thought of structured cabling and doesn't have utility ducts
> for central heating or anything else.


Agreed, but installing a patch panel is just another layer of cost and
complexity. If it's a fixed installation, he might as well just plug the
cable ends straight into the switch.


 
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John Weston
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      05-08-2011, 08:33 PM
On Sun, 8 May 2011 19:16:16 +0100, Zapp Brannigan wrote:
>


> Agreed, but installing a patch panel is just another layer of cost and
> complexity. If it's a fixed installation, he might as well just plug the
> cable ends straight into the switch.


Providing he doesn't want to do much unplugging and
plugging of the probably already installed solid cables, it
might be OK - but I wouldn't want to risk the few pounds it
might save, since he will need the correct plugs for solid
wire that are harder to install correctly and these aren't
as reliable if the wire is frequently flexed, IME. If he
has used stranded cable throughout then he's just got long
patch cables so this is acceptable, if it meets curent and
anticipaed future needs

I'm not advocating a full patch panel. Terminate the six
fixed cables into six wall-mounted fixed sockets and use
short patch cables from them to an unmanaged switch; e.g.
1Gbps 8-way? - 6 for the house LAN, 1 for the router and
the other for a future NAS; or whatever is at the other
end.

Do it once and do it right

--
John W
 
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SteveH
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      05-09-2011, 08:19 AM
Rob Morley wrote:
> On Sat, 7 May 2011 14:41:50 +0100
> "Zapp Brannigan" <(E-Mail Removed)> wrote:
>
>> Aosmosis wrote:
>>> I have a 6 pairs of CAT5 cables that have no RJ45 connectors, 1 of
>>> which carries the signal from my ADSL router.
>>> Is there anything that exists that combines all the wires so the
>>> other 5 wires have internet. Worst case would be to crimp all the
>>> wires with RJ45s and plug them into a hub.
>>> What I am looking for is like a punch down terminal board so they
>>> all get combined.

>>
>> Crimping RJ45's on each cable and buying an 8-port switch is the only
>> sensible option.
>>
>>

> Not necessarily - as someone else pointed out he could use RJ45
> sockets with punchdown connectors then run patch cables to the
> switch. I tend to just run long patch cables where they're needed,
> drilling holes in ceilings as I go, but this house was built long
> before anyone had thought of structured cabling and doesn't have
> utility ducts for central heating or anything else.


Homeplug adapters?

--
SteveH


 
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