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  #1 (permalink)  
Old 12-24-2011, 07:04 AM
Chuck Banshee
Guest
 
Posts: n/a
Default Does having multiple RJ45 jacks degrade the Internet signal a lot?

This is my first time installing cat5 cable in my house and I am unsure
how to connect to RJ45 jacks that I need to put in the wall.

I've installed a WISP antenna 75 feet from the house & will be routing
the outdoor cat5 cable into the middle of the house (another 25 or so
feet) - but I have a few 'design' questions I'd like to ask those more
experienced than I am.

Pictured here is what I have in the wall in the middle of the house:
http://picturepush.com/public/7212874
or
www1.picturepush.com/photo/a/7212874/1024/Anonymous/cat5-questions.gif

I'm not sure if it's best to route the wire all the way from the antenna
to the middle of the house (about 75 feet to the house and another 25 or
30 feet zig-zagging to the crawl space and then up to the newly drilled
hole at the wall).

I'm going to put a wall plate at the wall in the middle of the house; but
should I also put a wall plate where the wire enters the house?

Does breaking the line into sections degrade the signal?

If I do put a wall plate at the entrance to the house, I'll likely put
the POE (power over ethernet) at the wall inside the house (otherwise it
will go in the middle of the house next to the WRT54G router).

When I put a wall plate in the middle of the house, would you add a
second female jack (just in case for future use?). Or does that also
degrade the signal?

In summary, I'm not sure if I should strive to keep the line intact and
how I should terminate it.

Any advice?

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  #2 (permalink)  
Old 12-24-2011, 07:41 AM
miso
Guest
 
Posts: n/a
Default Re: Does having multiple RJ45 jacks degrade the Internet signal alot?

On 12/24/2011 12:04 AM, Chuck Banshee wrote:
> This is my first time installing cat5 cable in my house and I am unsure
> how to connect to RJ45 jacks that I need to put in the wall.
>
> I've installed a WISP antenna 75 feet from the house& will be routing
> the outdoor cat5 cable into the middle of the house (another 25 or so
> feet) - but I have a few 'design' questions I'd like to ask those more
> experienced than I am.
>
> Pictured here is what I have in the wall in the middle of the house:
> http://picturepush.com/public/7212874
> or
> www1.picturepush.com/photo/a/7212874/1024/Anonymous/cat5-questions.gif
>
> I'm not sure if it's best to route the wire all the way from the antenna
> to the middle of the house (about 75 feet to the house and another 25 or
> 30 feet zig-zagging to the crawl space and then up to the newly drilled
> hole at the wall).
>
> I'm going to put a wall plate at the wall in the middle of the house; but
> should I also put a wall plate where the wire enters the house?
>
> Does breaking the line into sections degrade the signal?
>
> If I do put a wall plate at the entrance to the house, I'll likely put
> the POE (power over ethernet) at the wall inside the house (otherwise it
> will go in the middle of the house next to the WRT54G router).
>
> When I put a wall plate in the middle of the house, would you add a
> second female jack (just in case for future use?). Or does that also
> degrade the signal?
>
> In summary, I'm not sure if I should strive to keep the line intact and
> how I should terminate it.
>
> Any advice?


I'm a bit confused here. It should be one device per line, so what are
you paralleling?

I'd put the router someplace like a closet in the middle of the house
and run wires to each room as needed. There are "structured" wiring bays
if you want to get fancy, rather than have wires dangling in the closet.


Kind of old school here. I think today you would just wire data. Forget
the RF unless you insist on cable.
> http://www.swhowto.com/



> http://www.computercablestore.com/12..._PID48600.aspx


I've only see these in rack mounts, i.e. office environments. Wall
mounts is what would make more sense for a house.

I'd put in the highest speed wire and patch you can afford. Also, there
are issues with how you radius the wire. I don't think this is rocket
science, but you do need to be scientific about it.

Your AM radio may hear these wires sing, but streaming radios are the
way to go. I haven't used a broadcast radio other than shortwave in 4 or
5 years.

There are shielded cables to reduce the EMI. Probably OK for a short
distance. There are ground mismatch issues with shielded cables.

Cat 6 is commonplace. Cat 7 is out there, though I don't recall seeing
it in stores. A twisted pair guru told me (and I have no way to verify
this) that once a company can do cat X, eventually everything the sell
is Cat X, even if it is labeled Cat (X-1). Once you have the twist
(balance) down, you eventually make everything to that grade as
machinery gets fixed.

Some of the cat 7 wire has teflon insulation. I'd certainly rest easier
at night knowing the wires in the wall are good for high temperature.

Incidentally I have a very old Zircon stud finder. They called it the
video sensor. It works well. But your magnet trick looks good to me.
> http://www.zircon.com/discontinued/s...eoscanner.html


This device even found a shallow buried pipe that some rancher gypsy
installed.

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  #3 (permalink)  
Old 12-24-2011, 10:39 AM
mike
Guest
 
Posts: n/a
Default Re: Does having multiple RJ45 jacks degrade the Internet signal alot?

Chuck Banshee wrote:
> This is my first time installing cat5 cable in my house and I am unsure
> how to connect to RJ45 jacks that I need to put in the wall.
>
> I've installed a WISP antenna 75 feet from the house & will be routing
> the outdoor cat5 cable into the middle of the house (another 25 or so
> feet) - but I have a few 'design' questions I'd like to ask those more
> experienced than I am.
>
> Pictured here is what I have in the wall in the middle of the house:
> http://picturepush.com/public/7212874
> or
> www1.picturepush.com/photo/a/7212874/1024/Anonymous/cat5-questions.gif
>
> I'm not sure if it's best to route the wire all the way from the antenna
> to the middle of the house (about 75 feet to the house and another 25 or
> 30 feet zig-zagging to the crawl space and then up to the newly drilled
> hole at the wall).
>
> I'm going to put a wall plate at the wall in the middle of the house; but
> should I also put a wall plate where the wire enters the house?
>
> Does breaking the line into sections degrade the signal?
>
> If I do put a wall plate at the entrance to the house, I'll likely put
> the POE (power over ethernet) at the wall inside the house (otherwise it
> will go in the middle of the house next to the WRT54G router).
>
> When I put a wall plate in the middle of the house, would you add a
> second female jack (just in case for future use?). Or does that also
> degrade the signal?
>
> In summary, I'm not sure if I should strive to keep the line intact and
> how I should terminate it.
>
> Any advice?


Your description is somewhat vague, but I can give you some general
guidelines.
Assuming you're running standard 802.11 ethernet, it makes some difference
whether you're running 10Mb, 100Mb, or gigabit ethernet.
Faster requires more care.

In general, you can have exactly one device at either end of the wire.
You can have plugs and sockets in the wire, but only one device on
either end....not in the middle...at the ends of the wire.
You cannot tap a device into the middle of a wire. Devices have to be
on the ENDs of the wires. Doesn't matter if the unused end of the wire
is disconnected...the extra wire can't be there.

You can have two sockets and a jumper wire. Remove the jumper to use
the connector in the middle of the run, but that disconnects the rest of
your system.

If one of those devices is a router, you can use one router port to continue
the run while you use another router port to "tap" the signal.

What do you mean by "terminate"?
You don't "terminate" the line as in impedance matching. That's done
inside the devices you connect to the END of the wire run.
If, by "terminate" you mean, do I solder it or use screw terminals, that's
a different issue. Should be instructions with the socket you use.

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  #4 (permalink)  
Old 12-24-2011, 02:06 PM
Stephen
Guest
 
Posts: n/a
Default Re: Does having multiple RJ45 jacks degrade the Internet signal a lot?

On Sat, 24 Dec 2011 08:04:38 +0000 (UTC), Chuck Banshee
<chuckbanshee@private.com> wrote:

>This is my first time installing cat5 cable in my house and I am unsure
>how to connect to RJ45 jacks that I need to put in the wall.
>
>I've installed a WISP antenna 75 feet from the house & will be routing
>the outdoor cat5 cable into the middle of the house (another 25 or so
>feet) - but I have a few 'design' questions I'd like to ask those more
>experienced than I am.


Cat5 is designed for 100m reach, within an office environment.

standard setup is 10m total of "patch" leads at each end, with a fixed
"home run" cable between them.

Exactly what you use over the Cat5 dictates how sensitive the sugnals
are to pushing the boundaries
- but Cat5 is designed to have some room for long term degradation.

Various setups may increase the number of RJ-45 connectors - a power
over Ethernet power injector within a run for example.
>
>Pictured here is what I have in the wall in the middle of the house:
>http://picturepush.com/public/7212874
>or
>www1.picturepush.com/photo/a/7212874/1024/Anonymous/cat5-questions.gif
>
>I'm not sure if it's best to route the wire all the way from the antenna
>to the middle of the house (about 75 feet to the house and another 25 or
>30 feet zig-zagging to the crawl space and then up to the newly drilled
>hole at the wall).
>
>I'm going to put a wall plate at the wall in the middle of the house; but
>should I also put a wall plate where the wire enters the house?
>
>Does breaking the line into sections degrade the signal?


yes - but exactly how much depends on the device - find some cabling
instructions on how to do it properly, but in general maintain the
"twists" in each pair as much as feasible.

I think the punchdown style connections are easiest to do, and allow
the twists to within a few mm of the connector.
>
>If I do put a wall plate at the entrance to the house, I'll likely put
>the POE (power over ethernet) at the wall inside the house (otherwise it
>will go in the middle of the house next to the WRT54G router).
>
>When I put a wall plate in the middle of the house, would you add a
>second female jack (just in case for future use?). Or does that also
>degrade the signal?
>

Golden rule is treat this as flood wiring
- put more cables in parallel than you think you will ever need,
since cable is cheap and running wires in is disruptive.

Dont add extra jack points on an individual run unless you need to.

PoE is designed to work at 100m, so it doesnt sound like placement
will matter much.

>In summary, I'm not sure if I should strive to keep the line intact and
>how I should terminate it.
>
>Any advice?

--
Regards

stephen_hope@xyzworld.com - replace xyz with ntl

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  #5 (permalink)  
Old 12-24-2011, 02:32 PM
clare@snyder.on.ca
Guest
 
Posts: n/a
Default Re: Does having multiple RJ45 jacks degrade the Internet signal a lot?

On Sat, 24 Dec 2011 08:04:38 +0000 (UTC), Chuck Banshee
<chuckbanshee@private.com> wrote:

>This is my first time installing cat5 cable in my house and I am unsure
>how to connect to RJ45 jacks that I need to put in the wall.
>
>I've installed a WISP antenna 75 feet from the house & will be routing
>the outdoor cat5 cable into the middle of the house (another 25 or so
>feet) - but I have a few 'design' questions I'd like to ask those more
>experienced than I am.
>
>Pictured here is what I have in the wall in the middle of the house:
>http://picturepush.com/public/7212874
>or
>www1.picturepush.com/photo/a/7212874/1024/Anonymous/cat5-questions.gif
>
>I'm not sure if it's best to route the wire all the way from the antenna
>to the middle of the house (about 75 feet to the house and another 25 or
>30 feet zig-zagging to the crawl space and then up to the newly drilled
>hole at the wall).
>
>I'm going to put a wall plate at the wall in the middle of the house; but
>should I also put a wall plate where the wire enters the house?
>
>Does breaking the line into sections degrade the signal?
>
>If I do put a wall plate at the entrance to the house, I'll likely put
>the POE (power over ethernet) at the wall inside the house (otherwise it
>will go in the middle of the house next to the WRT54G router).
>
>When I put a wall plate in the middle of the house, would you add a
>second female jack (just in case for future use?). Or does that also
>degrade the signal?
>
>In summary, I'm not sure if I should strive to keep the line intact and
>how I should terminate it.
>
>Any advice?

The short answer is yes, you should keep the segment in one piece if
at all [possible. Each connection can degrade the signal.

If you want to split the cable where it enters the building best
practice would be to install an active switch (if you are running
ethernet) at the entrance - you can go 285 feet (some say 100 meters,
but that's stretching it) on both sides of the switch, and up to 4
switches in "series"

Terminate with cat5 or cat5e spec RJ45 jacks or plugs. (plug on end of
cable goung ito and out of switch, jack in wall)

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  #6 (permalink)  
Old 12-24-2011, 02:48 PM
clare@snyder.on.ca
Guest
 
Posts: n/a
Default Re: Does having multiple RJ45 jacks degrade the Internet signal a lot?

On Sat, 24 Dec 2011 00:41:58 -0800, miso <miso@sushi.com> wrote:

>
>Cat 6 is commonplace. Cat 7 is out there, though I don't recall seeing
>it in stores. A twisted pair guru told me (and I have no way to verify
>this) that once a company can do cat X, eventually everything the sell
>is Cat X, even if it is labeled Cat (X-1). Once you have the twist
>(balance) down, you eventually make everything to that grade as
>machinery gets fixed.


Cat 5 or 6 cannot be made on the same machinery as cat7 because cat7
uses individually shielded wires, twiisted together into a sheilded
cable. REALLY nasty stuff to work with. And 3 standards - cat7, cat7a
and cat7f.
>
>Some of the cat 7 wire has teflon insulation. I'd certainly rest easier
>at night knowing the wires in the wall are good for high temperature.
>
>Incidentally I have a very old Zircon stud finder. They called it the
>video sensor. It works well. But your magnet trick looks good to me.
>> http://www.zircon.com/discontinued/s...eoscanner.html

>
>This device even found a shallow buried pipe that some rancher gypsy
>installed.



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  #7 (permalink)  
Old 12-24-2011, 02:52 PM
clare@snyder.on.ca
Guest
 
Posts: n/a
Default Re: Does having multiple RJ45 jacks degrade the Internet signal a lot?

On Sat, 24 Dec 2011 15:06:14 +0000, Stephen
<stephen_hope@xyzworld.com> wrote:

>On Sat, 24 Dec 2011 08:04:38 +0000 (UTC), Chuck Banshee
><chuckbanshee@private.com> wrote:
>
>>This is my first time installing cat5 cable in my house and I am unsure
>>how to connect to RJ45 jacks that I need to put in the wall.
>>
>>I've installed a WISP antenna 75 feet from the house & will be routing
>>the outdoor cat5 cable into the middle of the house (another 25 or so
>>feet) - but I have a few 'design' questions I'd like to ask those more
>>experienced than I am.

>
>Cat5 is designed for 100m reach, within an office environment.
>
>standard setup is 10m total of "patch" leads at each end, with a fixed
>"home run" cable between them.
>
>Exactly what you use over the Cat5 dictates how sensitive the sugnals
>are to pushing the boundaries
> - but Cat5 is designed to have some room for long term degradation.
>
>Various setups may increase the number of RJ-45 connectors - a power
>over Ethernet power injector within a run for example.
>>



Best practice would be to use a POE switch at the entry point - it
provides the POE and retransmits the data, breaking the network into 2
segments (both of which have the theoretical 75 or 100 meter length
capability)
>>Pictured here is what I have in the wall in the middle of the house:
>>http://picturepush.com/public/7212874
>>or
>>www1.picturepush.com/photo/a/7212874/1024/Anonymous/cat5-questions.gif
>>
>>I'm not sure if it's best to route the wire all the way from the antenna
>>to the middle of the house (about 75 feet to the house and another 25 or
>>30 feet zig-zagging to the crawl space and then up to the newly drilled
>>hole at the wall).
>>
>>I'm going to put a wall plate at the wall in the middle of the house; but
>>should I also put a wall plate where the wire enters the house?
>>
>>Does breaking the line into sections degrade the signal?

>
>yes - but exactly how much depends on the device - find some cabling
>instructions on how to do it properly, but in general maintain the
>"twists" in each pair as much as feasible.
>
>I think the punchdown style connections are easiest to do, and allow
>the twists to within a few mm of the connector.
>>
>>If I do put a wall plate at the entrance to the house, I'll likely put
>>the POE (power over ethernet) at the wall inside the house (otherwise it
>>will go in the middle of the house next to the WRT54G router).
>>
>>When I put a wall plate in the middle of the house, would you add a
>>second female jack (just in case for future use?). Or does that also
>>degrade the signal?
>>

>Golden rule is treat this as flood wiring
> - put more cables in parallel than you think you will ever need,
>since cable is cheap and running wires in is disruptive.
>
>Dont add extra jack points on an individual run unless you need to.
>
>PoE is designed to work at 100m, so it doesnt sound like placement
>will matter much.
>
>>In summary, I'm not sure if I should strive to keep the line intact and
>>how I should terminate it.
>>
>>Any advice?



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  #8 (permalink)  
Old 12-24-2011, 04:10 PM
Justin Time
Guest
 
Posts: n/a
Default Re: Does having multiple RJ45 jacks degrade the Internet signal a lot?


"miso" <miso@sushi.com> wrote in message
news:jd438j$1ra$1@speranza.aioe.org...
> I'm a bit confused here. It should be one device per line, so what are you
> paralleling?
>
> I'd put the router someplace like a closet in the middle of the house and
> run wires to each room as needed. There are "structured" wiring bays if
> you want to get fancy, rather than have wires dangling in the closet.
>
>

All computer and Internet devices are wireless and the rest of the
electronic technology is close behind, such as TVs. Centralize a wireless
router and forego wiring the house.



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  #9 (permalink)  
Old 12-24-2011, 04:32 PM
trader4@optonline.net
Guest
 
Posts: n/a
Default Re: Does having multiple RJ45 jacks degrade the Internet signal a lot?

On Dec 24, 10:52*am, cl...@snyder.on.ca wrote:
> On Sat, 24 Dec 2011 15:06:14 +0000, Stephen
>
>
>
>
>
> <stephen_h...@xyzworld.com> wrote:
> >On Sat, 24 Dec 2011 08:04:38 +0000 (UTC), Chuck Banshee
> ><chuckbans...@private.com> wrote:

>
> >>This is my first time installing cat5 cable in my house and I am unsure
> >>how to connect to RJ45 jacks that I need to put in the wall.

>
> >>I've installed a WISP antenna 75 feet from the house & will be routing
> >>the outdoor cat5 cable into the middle of the house (another 25 or so
> >>feet) - but I have a few 'design' questions I'd like to ask those more
> >>experienced than I am.

>
> >Cat5 is designed for 100m reach, within an office environment.

>
> >standard setup is 10m total of "patch" leads at each end, with a fixed
> >"home run" cable between them.

>
> >Exactly what you use over the Cat5 dictates how sensitive the sugnals
> >are to pushing the boundaries
> > - but Cat5 is designed to have some room for long term degradation.

>
> >Various setups may increase the number of RJ-45 connectors - a power
> >over Ethernet power injector within a run for example.

>
> Best practice would be to use a POE switch at the entry point - it
> provides the POE and retransmits the data, breaking the network into 2
> segments (both of which have the theoretical 75 or 100 meter length
> capability)
>
>
>
> >>Pictured here is what I have in the wall in the middle of the house:
> >>http://picturepush.com/public/7212874
> >>or
> >>www1.picturepush.com/photo/a/7212874/1024/Anonymous/cat5-questions.gif

>
> >>I'm not sure if it's best to route the wire all the way from the antenna
> >>to the middle of the house (about 75 feet to the house and another 25 or
> >>30 feet zig-zagging to the crawl space and then up to the newly drilled
> >>hole at the wall).

>
> >>I'm going to put a wall plate at the wall in the middle of the house; but
> >>should I also put a wall plate where the wire enters the house?

>
> >>Does breaking the line into sections degrade the signal?

>
> >yes - but exactly how much depends on the device - find some cabling
> >instructions on how to do it properly, but in general maintain the
> >"twists" in each pair as much as feasible.

>
> >I think the punchdown style connections are easiest to do, and allow
> >the twists to within a few mm of the connector.

>
> >>If I do put a wall plate at the entrance to the house, I'll likely put
> >>the POE (power over ethernet) at the wall inside the house (otherwise it
> >>will go in the middle of the house next to the WRT54G router).

>
> >>When I put a wall plate in the middle of the house, would you add a
> >>second female jack (just in case for future use?). Or does that also
> >>degrade the signal?

>
> >Golden rule is treat this as flood wiring
> > - put more cables in parallel than you think you will ever need,
> >since cable is cheap and running wires in is disruptive.

>
> >Dont add extra jack points on an individual run unless you need to.

>
> >PoE is designed to work at 100m, so it doesnt sound like placement
> >will matter much.

>
> >>In summary, I'm not sure if I should strive to keep the line intact and
> >>how I should terminate it.

>
> >>Any advice?- Hide quoted text -

>
> - Show quoted text -- Hide quoted text -
>
> - Show quoted text -


It would seem to me the best thing to do would be
to run one line from the outside antenna direct to
a central distribution point in the house. At that
central point, you put the switch. Then any RJ45
jacks in the house are run to the central point.

But a lot depends on what it is he's intending to
do, the various uses, how easy it is to run cable,
etc. For at least some of the uses, wireless may
be a better option, as someone already pointed out.
No wire to run.
Wired to the various rooms/uses is still going to
provide more reliable connection and better data
rate. But if the WISP connection is the limiting
factor, having 1 gig ethernet inside the house
doesn't get you much, unless you;re moving
data between devices.

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  #10 (permalink)  
Old 12-24-2011, 08:36 PM
Jeff Liebermann
Guest
 
Posts: n/a
Default Re: Does having multiple RJ45 jacks degrade the Internet signal a lot?

On Sat, 24 Dec 2011 08:04:38 +0000 (UTC), Chuck Banshee
<chuckbanshee@private.com> wrote:

>This is my first time installing cat5 cable in my house and I am unsure
>how to connect to RJ45 jacks that I need to put in the wall.


The basic idea is to build a "star" (also known as home run).
Everything comes to a central location, where you locate a 10/100baseT
ethernet switch. You can add additional ethernet switches at any
endpoint that needs more than one connection (forming a "tree").

>I've installed a WISP antenna 75 feet from the house & will be routing
>the outdoor cat5 cable into the middle of the house (another 25 or so
>feet) -


Very vague. What manner of hardware are you installing? Most WISP
system use PoE to the radio/antenna on the roof, and ethernet to some
manner of power injector. From there, you run ethernet to a local
router, and then to the central ethernet switch. The router might be
built into your unspecified model WISP radio. Note that I said
"switch", not "hub". You do not want a hub.

Hopefully, you didn't run 75ft of coaxial cable between the radio and
the antenna. That's much too long. Cable losses at 2.4GHz are quite
high.

>Pictured here is what I have in the wall in the middle of the house:
>http://picturepush.com/public/7212874


My Zircon stud sensor sorta works. However, I cheat. I have photos
of what's inside my walls from before the drywall and paneling was
added.

While it's nice to have the outlet box attached to a stud, it's not
necessary. There are rework PVC device boxes, that attach to the
drywall.

RJ45 jacks do not cause loss. Un-connected jacks do not cause loss.
Unterminated cables do not cause loss. The catch is that you have to
install one cable for each RJ45 jack. Since CAT5e has 4 pairs of
wires, and ethernet uses only 2 pairs, you can split the cable pairs
and wire two jacks on the wall jacks, and attach two RJ45 plugs at the
other end of the cable. However, if you're using PoE on this segment,
you'll need all 4 pairs to the wall jack.

Since you're running CAT5 through the wall base plate, you'll need to
drill a large enough hole to accommodate the number of cables you
need. If you only want to run one cable, then perhaps adding an
ethernet switch near the wall plate might be easier.

>I'm not sure if it's best to route the wire all the way from the antenna
>to the middle of the house (about 75 feet to the house and another 25 or
>30 feet zig-zagging to the crawl space and then up to the newly drilled
>hole at the wall).


Hint:
a "wire" is a single length of insulated copper.
a "cable" is a collection of wires enclosed by a vinyl jacket.

Hopefully, this cable is CAT5e. It will need to run from the rooftop
mast, to the nearest convenient location that has AC power (for PoE).
That's usually also the location of the central ethernet switch.

>I'm going to put a wall plate at the wall in the middle of the house; but
>should I also put a wall plate where the wire enters the house?


No. Wall plates are NOT waterproof. You should use a proper cable
entry. For rooftops, that's a "rams head". For wall entry, cable
entry with a drip loop. There are some tricks involved (such as
slightly angling the hole in the wall upward so accumulated water
drips outward). Also, leave a service loop for anything that you
install in the wall. Talk to a DBS satellite dish installer for
clues.

>Does breaking the line into sections degrade the signal?


Nope, as long as there is an ethernet switch between each segment.
However, if you're talking about running multiple segments and just
splicing them together, that also works. I suggest you terminate each
end with an RJ45 plug, and use a coupler to make the connection. It's
a bit more complex, but much easier to troubleshoot when the kids,
puppy, or mice, chew up the cable.
<http://www.ebay.com/itm/260915346939>

>If I do put a wall plate at the entrance to the house, I'll likely put
>the POE (power over ethernet) at the wall inside the house (otherwise it
>will go in the middle of the house next to the WRT54G router).


Do NOT hide anything INSIDE the wall. One little spark or overheated
power device, and you'll have a fire in an inaccessible location.

>When I put a wall plate in the middle of the house, would you add a
>second female jack (just in case for future use?). Or does that also
>degrade the signal?


Yes. As long as the 2nd jack is on a separate CAT5e cable, there's no
deterioration in the signal. The problem is that there's NEVER enough
ethernet wall jacks. If you expect that you'll need one, then install
two. If you think you'll need two, then install four. 6 jacks is
about the limit. Extra cable is cheaper than the time to do it over
again.

There are also ethernet switches that will fit in the wall, but you
won't like the price:
<http://www.amazon.com/3CNJ220-CRM-4-Port-100Mbps-Ethernet-Switch/dp/B0001DHE0U>

>In summary, I'm not sure if I should strive to keep the line intact and
>how I should terminate it.
>
>Any advice?


I think you're over your head a little. Best to Google the internet
for CAT5 and ethernet installation instructions and examples. Also,
talk to a professional cable installer before you make a major
mistake. The danger is that if you have a house fire, and the fire
inspector finds non-code compliant creative wiring, you run the risk
of having your insurance company declare that you were the cause of
the fire.

--
Jeff Liebermann jeffl@cruzio.com
150 Felker St #D http://www.LearnByDestroying.com
Santa Cruz CA 95060 http://802.11junk.com
Skype: JeffLiebermann AE6KS 831-336-2558

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  #11 (permalink)  
Old 12-24-2011, 11:23 PM
miso
Guest
 
Posts: n/a
Default Re: Does having multiple RJ45 jacks degrade the Internet signal alot?


> All computer and Internet devices are wireless and the rest of the
> electronic technology is close behind, such as TVs. Centralize a wireless
> router and forego wiring the house.
>
>

I do wireless now, but given my druthers, I'd do it up all wired and put
a server/Drobo/whatever in that closet. New construction has structured
wiring as an add-on.


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  #12 (permalink)  
Old 12-24-2011, 11:41 PM
miso
Guest
 
Posts: n/a
Default Re: Does having multiple RJ45 jacks degrade the Internet signal alot?


> I think you're over your head a little. Best to Google the internet
> for CAT5 and ethernet installation instructions and examples. Also,
> talk to a professional cable installer before you make a major
> mistake. The danger is that if you have a house fire, and the fire
> inspector finds non-code compliant creative wiring, you run the risk
> of having your insurance company declare that you were the cause of
> the fire.
>


Is there any code for wire beneath 48V? I though the whole idea behind
low voltage wiring is that it is code free. Otherwise you would need an
electrician to wiring up a new phone outlet.

The trouble with networking experts is these are all the guys who were
run out of the alarm business when ADT and others started their free
installations. They became networking experts, home theater experts,
etc. Not that I blame them for finding new jobs where they can be self
employed, but quality is all over the map.

Don't get me wrong. Some of these networking guys are really sharp. I
use a local guy for auto parts that is a CNI. Trouble is it is more
profitable to sell parts on the net than compete with the rest of the
networking firms. I have a friend that does networking strictly for
commercial and municipal jobs, and survives pretty much by having a long
list of jobs well done. Nobody in city hall wants to be the guy that
hired the clown network company, and so they write the bids with enough
legal mumbo jumbo that few first timers want to compete.


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  #13 (permalink)  
Old 12-24-2011, 11:58 PM
miso
Guest
 
Posts: n/a
Default Re: Does having multiple RJ45 jacks degrade the Internet signal alot?


> Cat 5 or 6 cannot be made on the same machinery as cat7 because cat7
> uses individually shielded wires, twiisted together into a sheilded
> cable. REALLY nasty stuff to work with. And 3 standards - cat7, cat7a
> and cat7f.
>

OK. I was told that in the cat 5e era, with cat 6 coming online.

With electronics, sometimes items are truly different and sometimes they
are tested and selected for grade. If the construction is different,
they can't be the same obviously. If the components are selected for
grade, then often they sell "A" grade on the "B" grade line just to fill
orders. In the IC business, the procedure is known as "paint and remark".

Now if 7, 7a, and 7f use the same materials, then there is a chance at
some point they are the same quality.

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  #14 (permalink)  
Old 12-25-2011, 12:21 AM
Jeff Liebermann
Guest
 
Posts: n/a
Default Re: Does having multiple RJ45 jacks degrade the Internet signal a lot?

On Sat, 24 Dec 2011 16:23:26 -0800, miso <miso@sushi.com> wrote:

>
>> All computer and Internet devices are wireless and the rest of the
>> electronic technology is close behind, such as TVs. Centralize a wireless
>> router and forego wiring the house.


>I do wireless now, but given my druthers, I'd do it up all wired and put
>a server/Drobo/whatever in that closet. New construction has structured
>wiring as an add-on.


I agree. Wireless should be used when other methods (CAT5 or fiber)
are not available. The reliability and speed of the connection is
well worth the effort running the wires or fiber. If speed is less of
an issue than convenience, consider using HomePlug or HomePNA.

For new installations, I usually recommend running conduit in the
walls from a central location (star topology). This is roughly the
way structured wiring is done. Bundles of CAT5, fiber, station wire,
alarm wire, intercom wire, thermocouple wire, and coax cable are
available for those who fail to appreciate conduit. Actually, it's
not the usual PVC electrical conduit but rather "smurf tube" or HDPE
(high density polyethylene) pipe:
<http://www.avsforum.com/avs-vb/showthread.php?t=901909>
<http://store.cablesplususa.com/networking-infrastructure-premier-conduit-raceway.html>

However, if you enjoy dealing with interference from the neighbors,
municipal wi-fi, wireless security cameras, TIVO, wireless TV,
microwave ovens, etc, wireless is for you.


--
# Jeff Liebermann 150 Felker St #D Santa Cruz CA 95060
# 831-336-2558
# http://802.11junk.com jeffl@cruzio.com
# http://www.LearnByDestroying.com AE6KS

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  #15 (permalink)  
Old 12-25-2011, 12:54 AM
Jeff Liebermann
Guest
 
Posts: n/a
Default Re: Does having multiple RJ45 jacks degrade the Internet signal a lot?

On Sat, 24 Dec 2011 16:41:38 -0800, miso <miso@sushi.com> wrote:

>Is there any code for wire beneath 48V?


Yep. It's called signaling or communications cable. Network wiring
and telco are covered as NEC article 800.
<http://ecmweb.com/nec/code-basics/electric_article_communications_circuits/>
The basic it is to keep the stuff away from power cables.

>I though the whole idea behind
>low voltage wiring is that it is code free. Otherwise you would need an
>electrician to wiring up a new phone outlet.


There's no such thing as code free. If the NFPA had its way, there
would be specifications for the toilet paper.

>The trouble with networking experts is these are all the guys who were
>run out of the alarm business when ADT and others started their free
>installations. They became networking experts, home theater experts,
>etc. Not that I blame them for finding new jobs where they can be self
>employed, but quality is all over the map.


Nope. Real cable experts are usually BICSI certified:
<https://www.bicsi.org/single.aspx?l=2464,4192,4194>
Note that BISCI also has a wireless designer certification:
<https://www.bicsi.org/double.aspx?l=2572&r=2574>
I'm tempted. Only $345... ouch.

However, I agree about the quality. I only got the jobs that no sane
and competent installer would accept. If I make a profit, I might
actually document my work or label a few things.

>Don't get me wrong. Some of these networking guys are really sharp. I
>use a local guy for auto parts that is a CNI. Trouble is it is more
>profitable to sell parts on the net than compete with the rest of the
>networking firms. I have a friend that does networking strictly for
>commercial and municipal jobs, and survives pretty much by having a long
>list of jobs well done. Nobody in city hall wants to be the guy that
>hired the clown network company, and so they write the bids with enough
>legal mumbo jumbo that few first timers want to compete.


Yep. However, the reason is different. The convoluted specs are
usually to avoid legal complications and to cover the customers ***
when the whole mess goes to litigation. I've been asked to carry
oversight insurance, with the customer as the sole beneficiary, just
in case they screwed up the job specifications. (Hint: I don't do
much wiring these daze).

--
# Jeff Liebermann 150 Felker St #D Santa Cruz CA 95060
# 831-336-2558
# http://802.11junk.com jeffl@cruzio.com
# http://www.LearnByDestroying.com AE6KS

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  #16 (permalink)  
Old 12-25-2011, 01:48 AM
Justin Time
Guest
 
Posts: n/a
Default Re: Does having multiple RJ45 jacks degrade the Internet signal a lot?


"Jeff Liebermann" <jeffl@cruzio.com> wrote in message
news:c1tcf7l6edfa6rfr9i3532rifh9jcaf93o@4ax.com...
>
> However, if you enjoy dealing with interference from the neighbors,
> municipal wi-fi, wireless security cameras, TIVO, wireless TV,
> microwave ovens, etc, wireless is for you.
>
>

I often hear/read about those rebuttals to wireless, but after many years of
using wireless, I have yet to have any major issues. In fact, I had several
machines connected. Some were wired and some wireless. I had more problems
with some of the wired than I did with wireless. It's not foolproof, but it
doesn't have the major interference problems you and many have stated.



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  #17 (permalink)  
Old 12-25-2011, 02:29 AM
Oren
Guest
 
Posts: n/a
Default Re: Does having multiple RJ45 jacks degrade the Internet signal a lot?

On Sat, 24 Dec 2011 17:21:37 -0800, Jeff Liebermann <jeffl@cruzio.com>
wrote:

>For new installations, I usually recommend running conduit in the
>walls from a central location (star topology). This is roughly the
>way structured wiring is done.


You've mentioned the star topology twice now. I agree it is the best
way to build the wired network. If one segment goes down, the rest of
the network is still up. Easier to trouble shoot a single segment.

Using a ring topology means more troubleshooting.

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  #18 (permalink)  
Old 12-25-2011, 03:02 AM
Jeff Liebermann
Guest
 
Posts: n/a
Default Re: Does having multiple RJ45 jacks degrade the Internet signal a lot?

On Sat, 24 Dec 2011 21:48:06 -0500, "Justin Time" <MB@gmail.com>
wrote:

>"Jeff Liebermann" <jeffl@cruzio.com> wrote in message
>news:c1tcf7l6edfa6rfr9i3532rifh9jcaf93o@4ax.com.. .
>>
>> However, if you enjoy dealing with interference from the neighbors,
>> municipal wi-fi, wireless security cameras, TIVO, wireless TV,
>> microwave ovens, etc, wireless is for you.
>>

>I often hear/read about those rebuttals to wireless, but after many years of
>using wireless, I have yet to have any major issues. In fact, I had several
>machines connected. Some were wired and some wireless. I had more problems
>with some of the wired than I did with wireless. It's not foolproof, but it
>doesn't have the major interference problems you and many have stated.


Well, what can I say? My experience has been quite the opposite. I
derive a fair part of my income from fixing wireless problems. Perhaps
I just see more wireless horror stories than you. Dunno.

It's not just the interference problems, some of which I itemized
above. There's also some rather strange wireless clients, buggy
wireless router firmware, compatibility issues, and just plain bad
design.

Here's an easy one, that I hear all to often. Customer has a wireless
PC laptop. He uses the laptop successfully on the office WLAN. He
slams the lid shut, putting the laptop into standby or hibernate. He
goes home, opens the lid, and the laptop resumes. One problem... he
can't connect. A bit of tinkering finds that the laptop still thinks
he's on the office WLAN, and is desperately looking for the office
wireless access point that's not there. If the IP address of the
office router and home router are the same, it's even more confusing
(ARP cache). The DHCP lease time hasn't expired yet, so the DHCP
client isn't going to break the RFC and initiate a premature DHCP
renewal. There are plenty of ways to fix this (IPCONFIG, reboot, turn
power on/off to the wireless card in the laptop), but it will usually
drive one into frustration mode the first time they see it. This
doesn't happen with a wired LAN.

Plenty of other ways to have wireless drive one nuts. I get a call
from a dentists office wondering if I could do something to make their
assorted wireless laptops work better. I arrive and find the outside
of the adjacent building festooned with wireless security cameras. As
long as they are running, Wi-Fi isn't working. I leave it to the
dentist to convince the neighbor to switch the cameras to wired.

Need more stories? Just ask.

However, you are correct that there are also plenty of wired issues.
I've had to deal with a few wiring and connector issues on network
hardware. Learning to crimp CAT5 into an RJ45 is fairly easy, but
does take some practice. I see far too many partial crimps and
creative wiring. Still, they're minor compared to the wireless
problems.

--
# Jeff Liebermann 150 Felker St #D Santa Cruz CA 95060
# 831-336-2558
# http://802.11junk.com jeffl@cruzio.com
# http://www.LearnByDestroying.com AE6KS

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  #19 (permalink)  
Old 12-25-2011, 03:15 AM
Jeff Liebermann
Guest
 
Posts: n/a
Default Re: Does having multiple RJ45 jacks degrade the Internet signal a lot?

On Sat, 24 Dec 2011 19:29:24 -0800, Oren <Oren@127.0.0.1> wrote:

>On Sat, 24 Dec 2011 17:21:37 -0800, Jeff Liebermann <jeffl@cruzio.com>
>wrote:
>
>>For new installations, I usually recommend running conduit in the
>>walls from a central location (star topology). This is roughly the
>>way structured wiring is done.

>
>You've mentioned the star topology twice now. I agree it is the best
>way to build the wired network. If one segment goes down, the rest of
>the network is still up. Easier to trouble shoot a single segment.


Yep. That's the ONLY way to do ethernet over twisted pair. Bus
topology is for 10base2 coax and POTS phones. Ring is for fiber or
token ring.
<https://www.google.com/search?q=ethernet+topology&tbm=isch>

>Using a ring topology means more troubleshooting.


Not really. Ring topology is used for fiber because it offers
improved reliability. Break the ring at any point, and the data
simply goes around the long way until the break is fixed. Two breaks
just means a small section of the ring is inaccessible. The rest of
the ring still works. It really makes more sense over a large
distance, such as going around the entire SF Bay area, rather than
just around the house.

The problem with home networks and fiber rings is that there just
isn't any affordable hardware available to make it happen. It's also
not really necessary at home, unless you have kids, puppies, or rats
chewing on the cables and need improved uptime.

The reason I keep mentioning star topology is that many users are very
familiar with the common POTS (plain old telephone service) bus type
topology. Find the cable that's snaking through the walls, and just
tap in with the phone instrument. That's convenient, but doesn't work
with 10/100baseT ethernet. It DOES work with 10base2 coax cable
ethernet, but that's limited to 10Mbits/sec half-duplex. I just
wanted to make sure that the OP doesn't try to wire his house in the
style of the POTS phone.

--
# Jeff Liebermann 150 Felker St #D Santa Cruz CA 95060
# 831-336-2558
# http://802.11junk.com jeffl@cruzio.com
# http://www.LearnByDestroying.com AE6KS

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  #20 (permalink)  
Old 12-25-2011, 04:19 AM
clare@snyder.on.ca
Guest
 
Posts: n/a
Default Re: Does having multiple RJ45 jacks degrade the Internet signal a lot?

On Sat, 24 Dec 2011 19:29:24 -0800, Oren <Oren@127.0.0.1> wrote:

>On Sat, 24 Dec 2011 17:21:37 -0800, Jeff Liebermann <jeffl@cruzio.com>
>wrote:
>
>>For new installations, I usually recommend running conduit in the
>>walls from a central location (star topology). This is roughly the
>>way structured wiring is done.

>
>You've mentioned the star topology twice now. I agree it is the best
>way to build the wired network. If one segment goes down, the rest of
>the network is still up. Easier to trouble shoot a single segment.
>
>Using a ring topology means more troubleshooting.

Cannot run ring topology ethernet except on Co-ax.. AKA Slo-ax

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  #21 (permalink)  
Old 12-25-2011, 04:28 AM
clare@snyder.on.ca
Guest
 
Posts: n/a
Default Re: Does having multiple RJ45 jacks degrade the Internet signal a lot?

On Sat, 24 Dec 2011 20:02:09 -0800, Jeff Liebermann <jeffl@cruzio.com>
wrote:

>On Sat, 24 Dec 2011 21:48:06 -0500, "Justin Time" <MB@gmail.com>
>wrote:
>
>>"Jeff Liebermann" <jeffl@cruzio.com> wrote in message
>>news:c1tcf7l6edfa6rfr9i3532rifh9jcaf93o@4ax.com. ..
>>>
>>> However, if you enjoy dealing with interference from the neighbors,
>>> municipal wi-fi, wireless security cameras, TIVO, wireless TV,
>>> microwave ovens, etc, wireless is for you.
>>>

>>I often hear/read about those rebuttals to wireless, but after many years of
>>using wireless, I have yet to have any major issues. In fact, I had several
>>machines connected. Some were wired and some wireless. I had more problems
>>with some of the wired than I did with wireless. It's not foolproof, but it
>>doesn't have the major interference problems you and many have stated.

>
>Well, what can I say? My experience has been quite the opposite. I
>derive a fair part of my income from fixing wireless problems. Perhaps
>I just see more wireless horror stories than you. Dunno.
>
>It's not just the interference problems, some of which I itemized
>above. There's also some rather strange wireless clients, buggy
>wireless router firmware, compatibility issues, and just plain bad
>design.
>
>Here's an easy one, that I hear all to often. Customer has a wireless
>PC laptop. He uses the laptop successfully on the office WLAN. He
>slams the lid shut, putting the laptop into standby or hibernate. He
>goes home, opens the lid, and the laptop resumes. One problem... he
>can't connect. A bit of tinkering finds that the laptop still thinks
>he's on the office WLAN, and is desperately looking for the office
>wireless access point that's not there. If the IP address of the
>office router and home router are the same, it's even more confusing
>(ARP cache). The DHCP lease time hasn't expired yet, so the DHCP
>client isn't going to break the RFC and initiate a premature DHCP
>renewal. There are plenty of ways to fix this (IPCONFIG, reboot, turn
>power on/off to the wireless card in the laptop), but it will usually
>drive one into frustration mode the first time they see it. This
>doesn't happen with a wired LAN.
>
>Plenty of other ways to have wireless drive one nuts. I get a call
>from a dentists office wondering if I could do something to make their
>assorted wireless laptops work better. I arrive and find the outside
>of the adjacent building festooned with wireless security cameras. As
>long as they are running, Wi-Fi isn't working. I leave it to the
>dentist to convince the neighbor to switch the cameras to wired.
>
>Need more stories? Just ask.
>
>However, you are correct that there are also plenty of wired issues.
>I've had to deal with a few wiring and connector issues on network
>hardware. Learning to crimp CAT5 into an RJ45 is fairly easy, but
>does take some practice. I see far too many partial crimps and
>creative wiring. Still, they're minor compared to the wireless
>problems.



You want to try the job I had last year. Moved an insurance agency
into a new build ing that had been pre-wired by the original tennant -
who went bankrupt - and the IT guys that had not been paid for the
server etc came in and lopped off all the cables 2 feet from the
ceiling. 78 cable runs - undocumented - and half wired to "A" spec and
half to "B". I ended up putting a switch rack above the door to the
former server room, terminating all those cables - then tracing them
back to their end-points, testing them, and re-wiring all of them that
ended up "crossed".

Then running "home runs" from the switch rack to the relocated server
room.

Then we added another kilometer of cable into a trough in the floor to
serve another 12 workstations.

Half of the cables for corporate network - the other half for VOIP
phone system (with POE).

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  #22 (permalink)  
Old 12-25-2011, 05:34 AM
krw@att.bizzzzzzzzzzzz
Guest
 
Posts: n/a
Default Re: Does having multiple RJ45 jacks degrade the Internet signal a lot?

On Sat, 24 Dec 2011 20:15:12 -0800, Jeff Liebermann <jeffl@cruzio.com> wrote:

>On Sat, 24 Dec 2011 19:29:24 -0800, Oren <Oren@127.0.0.1> wrote:
>
>>On Sat, 24 Dec 2011 17:21:37 -0800, Jeff Liebermann <jeffl@cruzio.com>
>>wrote:
>>
>>>For new installations, I usually recommend running conduit in the
>>>walls from a central location (star topology). This is roughly the
>>>way structured wiring is done.

>>
>>You've mentioned the star topology twice now. I agree it is the best
>>way to build the wired network. If one segment goes down, the rest of
>>the network is still up. Easier to trouble shoot a single segment.

>
>Yep. That's the ONLY way to do ethernet over twisted pair. Bus
>topology is for 10base2 coax and POTS phones. Ring is for fiber or
>token ring.
><https://www.google.com/search?q=ethernet+topology&tbm=isch>
>
>>Using a ring topology means more troubleshooting.

>
>Not really. Ring topology is used for fiber because it offers
>improved reliability. Break the ring at any point, and the data
>simply goes around the long way until the break is fixed. Two breaks
>just means a small section of the ring is inaccessible. The rest of
>the ring still works. It really makes more sense over a large
>distance, such as going around the entire SF Bay area, rather than
>just around the house.


"Rings" in reality, aren't. They're double "stars", with a pair of channels,
one each direction from a central hub to the points of the star. This is done
for serviceability. The network can be managed from a central point. The
original Token Ring was a true ring but it was quickly found that the network
got unmanageable. In fact, Token Ring over CAT-5 isn't uncommon at all (if
you can say Token Ring isn't "uncommon" anymore ;-).

>The problem with home networks and fiber rings is that there just
>isn't any affordable hardware available to make it happen. It's also
>not really necessary at home, unless you have kids, puppies, or rats
>chewing on the cables and need improved uptime.
>
>The reason I keep mentioning star topology is that many users are very
>familiar with the common POTS (plain old telephone service) bus type
>topology. Find the cable that's snaking through the walls, and just
>tap in with the phone instrument. That's convenient, but doesn't work
>with 10/100baseT ethernet. It DOES work with 10base2 coax cable
>ethernet, but that's limited to 10Mbits/sec half-duplex. I just
>wanted to make sure that the OP doesn't try to wire his house in the
>style of the POTS phone.


Most POTS is wired in a star, today. It's easier in new construction, to put
all the communications stuff together. Of course telephones don't care what
the wire looks like. If it made it the five miles from the CO, you could have
barbed wire in the house and it would work. ;-)


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  #23 (permalink)  
Old 12-25-2011, 05:38 AM
Chuck Banshee
Guest
 
Posts: n/a
Default Re: Does having multiple RJ45 jacks degrade the Internet signal alot?

On Sat, 24 Dec 2011 00:41:58 -0800, miso wrote:
> I'm a bit confused here. It should be one device per line, so what are
> you paralleling?


I think I'm confused too so that's why it's hard to help me.

Mainly I was worried whether I should BREAK the line at the entrance to
the house (and put the POE there) or if I should keep the cat5 line
continuous to the middle of the house (another 25 feet snaked about).

I was worried whether the break adds appreciable degradation?

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  #24 (permalink)  
Old 12-25-2011, 05:41 AM
Chuck Banshee
Guest
 
Posts: n/a
Default Re: Does having multiple RJ45 jacks degrade the Internet signal alot?

On Sat, 24 Dec 2011 12:10:20 -0500, Justin Time wrote:
> Centralize a wireless router and forego wiring the house.


That's essentially what I'm attempting.

I'll wire from the WISP antenna to the house (~ about 75') and then from
the house to the center of the house (~ another 25') where I'll put a
Linksys WRT54G wireless router.

I was mostly wondering if it was a good idea to BREAK the line at the
point where it entered the house (and put a jack there plus the POE power
supply) ... or ... if I should strive to keep the line intact up to the
router in the center of the house.


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  #25 (permalink)  
Old 12-25-2011, 05:45 AM
Jeff Liebermann
Guest
 
Posts: n/a
Default Re: Does having multiple RJ45 jacks degrade the Internet signal a lot?

On Sun, 25 Dec 2011 00:19:16 -0500, clare@snyder.on.ca wrote:

>On Sat, 24 Dec 2011 19:29:24 -0800, Oren <Oren@127.0.0.1> wrote:
>>Using a ring topology means more troubleshooting.


> Cannot run ring topology ethernet except on Co-ax.. AKA Slo-ax


Well, not exactly:

Methods of using Ethernet in a ring topology
<http://www.networkworld.com/community/node/43116>
There's also RRPP (Rapid Ring Protection Protocol), RRST (Rapid Ring
Spanning Tree), and others designed to facilitate ethernet rings.
However, they are all intended for metro LAN's and large server farms,
not for home use.

Incidentally, don't under estimate coax cable. I've run 10base2
(10Mbits/sec) for about 1500ft using RG6a/u coax and a pair of
dedicated transceivers. Yes, it's 75 ohms, not 50 ohms. With
10base2, it's called CheaperNet.

--
Jeff Liebermann jeffl@cruzio.com
150 Felker St #D http://www.LearnByDestroying.com
Santa Cruz CA 95060 http://802.11junk.com
Skype: JeffLiebermann AE6KS 831-336-2558

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  #26 (permalink)  
Old 12-25-2011, 05:53 AM
Chuck Banshee
Guest
 
Posts: n/a
Default Re: Does having multiple RJ45 jacks degrade the Internet signal alot?

On Sat, 24 Dec 2011 03:39:30 -0800, mike wrote:
> You can have two sockets and a jumper wire. Remove the jumper to use
> the connector in the middle of the run, but that disconnects the rest of
> your system.


That was what I was wondering.

I 'could' put a socket at the wall where the wire enters the house. I'd
put the 15 volt Ubiquiti POE there (to shorten the length to the WISP
antenna 75 feet outside).

Then, the jumper would go from the POE to the center of the house where
the router sits.

That gives me the option of connecting a router either at the point where
the wire enters the house 'or' in the middle of the house (but not both
at the same time).

I 'am' confused - but I was mostly wondering if it badly degraded the
signal to add that jumper as opposed to stringing the outdoor cat5 cable
all the way to the center of the house unbroken.

> If one of those devices is a router, you can use one router port to
> continue the run while you use another router port to "tap" the signal.


May I reflect on that?

I think you're saying I can put the router itself at the point where the
wire enters the house.

Then, from the four LAN ports of the router, I can continue the 25 feet
to the center of the house.

From another of the four router ports, I can tap off to another portion
of the house.

My question is if I do that - I would want to have permanent jacks in the
wall.

So, I'd go from the antenna to the wall of the house where I'd put a jack.
Then, I'd go to the router INPUT port with a short jumper cable.
Then I'd go from one of the four router OUTPUT LAN ports back to the wall
at another jack next to the first jack.
Plus, I could go from another of the router output LAN ports to a third
jack in the wall, which connects to another portion of the house.

This makes sense to me, and fits my needs.

But are these three jacks next to each other at the wall of the house a
signal degradation issue?

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  #27 (permalink)  
Old 12-25-2011, 06:10 AM
Chuck Banshee
Guest
 
Posts: n/a
Default Re: Does having multiple RJ45 jacks degrade the Internet signal alot?

On Sat, 24 Dec 2011 09:32:21 -0800, trader4@optonline.net wrote:
> But a lot depends on what it is he's intending to do, the various uses,
> how easy it is to run cable, etc. For at least some of the uses,
> wireless may be a better option


I was remiss in not stating the intention.


I have a typical home setup (kids, wife, etc.) on computers.

Very little data is between devices (except to the wireless printer).

Some rooms are just too hard to wire - so - I just need to wire the game
room (for the WII) and the office (for the VOIP phone & desktop computer).



I think I like best the option

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  #28 (permalink)  
Old 12-25-2011, 06:19 AM
Chuck Banshee
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Posts: n/a
Default Re: Does having multiple RJ45 jacks degrade the Internet signal alot?

On Sat, 24 Dec 2011 10:32:51 -0500, clare wrote:
> If you want to split the cable where it enters the building best
> practice would be to install an active switch


Thanks for that idea!
I had not thought of the option of an active switch...

Does this makes sense?
- Start at the WISP antenna Bullet M2 radio (set up as a router) outside
- Wire goes from that radio/router (set to serve as DHCP) to just inside
the house
- Just inside the house, that wire goes to the 15 volt Ubiquiti POE
- From the POE, the wire goes directly to the 'active switch' also just
inside the house
- From that active switch, I presume I can have four (or more) ports
- So, one port goes to the 25 feet to the center of the house to a wall
jack (placed where I drilled the hole in the picture)
- At that wall port, I can put the central WRT54G wireless router for the
house
- I assume I can send another wire out of one of the four ports of the
active switch at the wall of the house to the game room (where the WII
sits).

Would that work?

I think the IP address of the WII would then be different than the IP
addresses of the devices on the other end of the WRT54G router ... so
that's why I ask if this would work?

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  #29 (permalink)  
Old 12-25-2011, 06:31 AM
Chuck Banshee
Guest
 
Posts: n/a
Default Re: Does having multiple RJ45 jacks degrade the Internet signal alot?

On Sat, 24 Dec 2011 13:36:12 -0800, Jeff Liebermann wrote:
> The basic idea is to build a "star" (also known as home run). Everything
> comes to a central location, where you locate a 10/100baseT ethernet
> switch.


I now realize a 'star' topology is what I want (but I didn't know that
until now).

I was initially thinking of using my Linksys WRT54G router as the center
of the star!

That's why I was asking about additional jacks.

I was going to go from the four LAN ports of the WRT54G to the WII in the
game room (via additional wall jacks).

I think now that was a bad idea (right?).

The 'better' idea, as you noted, is to use an 'active ethernet switch' as
the center of the star. Right?

Drawing it on paper, does this make sense of what you suggested?
1. WISP antenna ~75 feet from the house
2. Ubiquiti Bullet M2 radio set up in router mode & DHCP server
3. POE just inside the house (it's an indoor Ubiquiti 15 volt POE unit)
4. Active 10/100 Ethernet switch just inside the house
5a. Out of the switch, one wire goes to the office (25 feet away)
5b. From there it goes to the Linksys WRT54G wireless router
5c. From there, the signal goes to the wireless devices scattered about
6a. Out of the switch, another wire goes to the game room (25 feet away)
6b. From a game room wall jack, a jumper goes to the WII
6c. This will be a different IP address - but that should be OK (right?)

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  #30 (permalink)  
Old 12-25-2011, 06:50 AM
Chuck Banshee
Guest
 
Posts: n/a
Default Re: Does having multiple RJ45 jacks degrade the Internet signal alot?

On Sat, 24 Dec 2011 13:36:12 -0800, Jeff Liebermann wrote:
> Most WISP system use PoE to the radio/antenna on the roof,
> and ethernet to some manner of power injector.
> From there, you run ethernet to a local router, and then to the
> central ethernet switch. The router might be built into your
> unspecified model WISP radio. Note that I said
> "switch", not "hub". You do not want a hub.


I had to look up hub versus switches versus routers.
- Hub: What goes in one port goes out all the others
- Switch: What goes in one port is 'intelligently' sent to another
- Router: Connects two networks to share the Internet connection

My desired setup is similar to what you've described.

- The 19 dBi planar antenna is outside on a pole pointed at the WISP AP
- (The antenna is not on the roof because I break tiles every time I go
on the roof!)
- Connected to the antenna is an outdoor Ubiquiti Bullet M2 radio
- That outdoor radio is currently configured as a router (not a bridge)
and it is set up to serve DHCP addresses and perform NAT
- From there the outdoor cat5 cable connects to a Ubiquiti 15volt POE
- From the POE, is up to me.

All I need is two wired points inside the house:
- The office (which is in a central location & where I'll put the WRT54G
broadband wireless router)
- The game room (which has a WII that I'd like to connect by wire)

I'd like the 'star' topology previously mentioned.

I'm confused if I need the "active 10/100 Ethernet switch" because I'm
wondering if the Linksys WRT54G is 'already' an active 10/100 Ethernet
switch.

Is it?

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