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NLG Members who host their own Repair Logs of Various Games. => RickHunters Computer Help 101 => Topic started by: Joeylc on February 23, 2011, 10:51:07 PM



Title: Ethernet Extenders Cat5 run over 375 ft.. ??
Post by: Joeylc on February 23, 2011, 10:51:07 PM
ok bill I know you wrote down what stuff we needed to fix the cat 5 run to the house...  :89- :89- :89-

Bill I left it "the note/info"  :25- :25- on the shop desk and well you know what happens to stuff left in the shop at night  :58- :58- :58- :58- :58-

I cant find it  :103- :103- :103- :103-  Do you recall what it was to do a Ethernet Extenders Cat5 run over 375 ft.. ??  :30- :30- :30-

I wont lose it this time Gcmommy is having a fit about the internet at the house ...  :30- :30- :30- :8- :8- :8- or lack of it  :71- :71- :71- :71-

Thanks Joey in the dog house  :61- :61-


Title: Re: Ethernet Extenders Cat5 run over 375 ft.. ??
Post by: Buzz on February 24, 2011, 12:04:11 AM
Joey tell her it's because I cut the trench crooked and the signal has to bend around a corner.  :279- :279- :279-


Title: Re: Ethernet Extenders Cat5 run over 375 ft.. ??
Post by: gcmommy on February 24, 2011, 01:00:10 AM
bill....PLEASE PLEASE PLEASE HELP!!!! i cannot do anything on this stupid computer at home. just to do this it took a good 2 minutes to load just this page to be able to type all this. I need some BIG time help in finding out how to make this faster...or as joey's sign says for the radio station....HELP or the dog gets it... :37- :37- :37- :8- :8- :8- :99- :99- :99-


Title: Re: Ethernet Extenders Cat5 run over 375 ft.. ??
Post by: CaptainHappy on February 24, 2011, 01:11:41 AM
bill....PLEASE PLEASE PLEASE HELP!!!! i cannot do anything on this stupid computer at home. just to do this it took a good 2 minutes to load just this page to be able to type all this. I need some BIG time help in finding out how to make this faster...or as joey's sign says for the radio station....HELP or the dog gets it... :37- :37- :37- :8- :8- :8- :99- :99- :99-

POOR  :61- :61- :61-

 :208- :208- :208-

CH :95-


Title: Re: Ethernet Extenders Cat5 run over 375 ft.. ??
Post by: brichter on February 24, 2011, 02:46:09 AM
I'm on it!  :89- :89-

Let me do the research and respond back... :103-


Title: Re: Ethernet Extenders Cat5 run over 375 ft.. ??
Post by: StatFreak on February 24, 2011, 03:15:17 AM
I haven't really looked into this, so please excuse me if I'm wrong here.

Since you can't install a signal booster every 100m as recommended with CAT5e, the only thing I can think of would be to install a booster at the shop, and possibly at the house, too. The problem is that you'll end up with noise on the receiving end and will probably have to install filters, and it still might not work.

I found this Ethernet over coax solution in a cursory internet search*. It's supposed to be good for 300m (about 1000 ft). I realize that you've already laid the cable, so this might not be the answer, and I really don't know how well it works.

http://www.hdtvsupply.com/ethernet-over-coax.html (http://www.hdtvsupply.com/ethernet-over-coax.html)

Hope this helps some. Bill will probably have a better solution for you. :89-

Stat :31-



*  P.S. I didn't research prices for these.


Title: Re: Ethernet Extenders Cat5 run over 375 ft.. ??
Post by: brichter on February 24, 2011, 03:45:09 AM
Extender:
http://var.abptech.com/s.nl/it.A/id.5984/.f?sc=12&category=12134 (http://var.abptech.com/s.nl/it.A/id.5984/.f?sc=12&category=12134)

Power injector:
http://var.abptech.com/s.nl/it.A/id.5287/.f?sc=12&category=12134 (http://var.abptech.com/s.nl/it.A/id.5287/.f?sc=12&category=12134)

I couldn't find the same ones I found last time, they were a little cheaper than these.


Title: Re: Ethernet Extenders Cat5 run over 375 ft.. ??
Post by: jay on February 24, 2011, 04:44:06 AM
The proper way to do this is to use single mode Fiber Optics which can run 10m (15km). I have a couple of 1000baseT - SMFO adapters sitting on a shelf I can send you Joey. This of course implies you need to get single mode FO cable terminated with SC connectors.

Ethernet spec is based on 100m or 330ft. That extra 50ft can cause problems. You might have better throughput at 10mb due to a lower error rate than if you run at a 100mb or gig speeds.


Another option is to put in a wireless hub with high gain antennas.


Title: Re: Ethernet Extenders Cat5 run over 375 ft.. ??
Post by: StatFreak on February 24, 2011, 06:21:20 AM
Jay, I had thought of both of those options, too, but he's not line of site for wireless, and fiber optic cable might cost more money than Joey wants to spend. :56- :56-
Is single mode cable inexpensive? :128-

Although... maybe he could put a wifi antenna on a pole on the roof to get it high enough to work.  :79-  and possibly even use a directional antenna?


Title: Re: Ethernet Extenders Cat5 run over 375 ft.. ??
Post by: StatFreak on February 24, 2011, 06:31:49 AM
Jay, would this work?
http://www.m2cables.us.com/6-Strand-Indoor-Outdoor-Fiber-Cable-Multimode-p/m2fib-bulk-08.htm (http://www.m2cables.us.com/6-Strand-Indoor-Outdoor-Fiber-Cable-Multimode-p/m2fib-bulk-08.htm)


Title: Re: Ethernet Extenders Cat5 run over 375 ft.. ??
Post by: Brianzz on February 24, 2011, 07:58:18 AM
If you mounted an outdoor high gain wifi antenna you may not have to worry about getting your own signal, I'm sure there would be lots of unsecured to choose from


Title: Re: Ethernet Extenders Cat5 run over 375 ft.. ??
Post by: brichter on February 24, 2011, 08:01:56 AM
Ok, I'm putting on  the  :186- hat:

Since the cable is already in place, the extender is the easiest and most cost effective solution, cut the cable in the middle and insert the repeater, with a 6"jumper between the switch in the store and the PoE injector. Fiber isn't a good candidate due to the cable routing (exposed fiber is easily compromised) as well as the price, and single mode is overkill for the distance he needs, multimode would be cheaper for this application although a fiber run of this length with terminators would exceed the cost of the items I listed. You just can't beat the price of Cat5e UTP, we get RJ-45 connectors in bulk for pennies apiece, and it only takes a minute or 2 to terminate both ends of the cable. You'll never be that quick terminating fiber as you're doing figure 8s for 5 minutes at least, and that's if you get a clean cleave the first time.

The last time I found a solution, it was ~$85 for the repeater and ~$50 for the PoE injector, but it was pretty hard to find a retailer. Now It doesn't even come up in a search, so I'd imagine they were discontinued products from a company that has since gone under and the existing stock was since depleted.

Joey, I may be able to find a power injector if cost is a big issue. I got one with my wireless access point, but my switch does PoE so it's just sitting in a box somewhere.

As far as wireless, the cable is already run. He'd need 2 new access points with bridge functionality and discrete connectors for antennae (SMA and RP-TNC are the common ones), and then he'd need 2 antennae. Wireless would have been my first choice, but as I said, the cable is already in place.



Title: Re: Ethernet Extenders Cat5 run over 375 ft.. ??
Post by: brichter on February 24, 2011, 08:10:00 AM
If you mounted an outdoor high gain wifi antenna you may not have to worry about getting your own signal, I'm sure there would be lots of unsecured to choose from

Good point, but Joey probably cares more that his data be secured than the cost of connectivity. I've been known to wardrive for a connection, though, especially when I roll into a new town and I'm looking for hotel prices or a good place to grab some grub... :5- :5- :72- :97- :208- :97- :72-


Title: Re: Ethernet Extenders Cat5 run over 375 ft.. ??
Post by: StatFreak on February 24, 2011, 08:15:42 AM
Ok, I'm putting on  the  :186- hat:

Since the cable is already in place, the extender is the easiest and most cost effective solution, cut the cable in the middle and insert the repeater, with a 6"jumper between the switch in the store and the PoE injector.
...

I believe that the "middle" would be outdoors in an - uh - "public" location. :47-  Would this device be robust enough? 
I defer to your expertise.  :131-


Title: Re: Ethernet Extenders Cat5 run over 375 ft.. ??
Post by: gcmommy on February 24, 2011, 10:13:33 AM
thank you guys for all the info....I'll make sure that Joey gets it...please keep the ideas coming  :186- :186- :186-

As for you  :104- C.H. :104------ hush you  :97- :97-


Title: Re: Ethernet Extenders Cat5 run over 375 ft.. ??
Post by: jay on February 24, 2011, 01:43:55 PM
Stat,

Technically speaking - the 100m distance restriction on ethernet is not based on electrical loss over distance but on timing.
Ethernet being a CS/CD topology expects responses otherwise it re-transmits etc. This is all tied up in the MAC (Media Access control spec).

If you type in CAT5 Extenders into google you should come back with HDMI, and DVI extenders which are good up to 1000ft (300m) over Cat5. The reason these work (and ethernet doesn't) is that the MAC is not Ethernet but a proprietary signal conversion. Its not an electrical loss problem.

MM (Multimode) fiber has the same 100m restrictions as Ethernet over copper because it works at the same frequency rate. Typically you use MM (vs copper) to do vertical runs between floors of an office building. Fiber is non-conductive and you do not get ground loop problems.
*** Electrictity always takes the quickest route to GND. So if you use a direct run of copper from Floor 12 to Floor 3. It is possible that if a short occurs on a PC on floor 12 that it would use the network path back to the 3rd floor vs the electrical path which might include a run between 5 offices, a breaker pannel etc.
Even if something as dramatic as a short does not occur you can get weird network problems showing up due to the different gnd potentials of being on different floors. The more floors, the more redundant paths, the more weird unexplainable problems on the network. You eliminate this by using fiber on your vertical runs.

SM (Single mode) fiber works on much higher frequencies and has two specs which are based on the diameter of the fiber (antenuation) and the strength of the optics. The first is a 15km (10mile) spec and the other is a 45km (30 mile) spec (for ethernet). SR vs LR. Again these distance limitations are based on the MAC spec and not on loss over distance. For instance an OC3 (155mb) or OC 12 (622mb) or OC 48 (2.5gb) can run 80km just fine over the same fiber cable. These just happen to be Telco standard interfaces and not Ethernet. So you would need a high end multiplexer or a router capable of supporting these interfaces.

I agree that Fiber is not cheap and termination of fiber and even the tools to do terminations are quite pricy.
Just for clarity what Brichter is suggesting is a Ethernet Repeater in the middle of the cable. The problem with this is that you need power to run the repeater and in the middle of no-mans land (aka the Arizona desert) outlets are hard to find. For many applications like Ceiling Mounted Wifi access points, telephones etc you can use POE (Power over Ethernet) to power these devices. POE comes from either a Ethernet switch designed for POE. Or via a device called a power injector which simply goes inline with your ethernet cable and injects power. The challenge is to find an economical ethernet repeater that accepts POE as its power source.

Switch-----POE Injector ---------------160m ethernet cable------------Repeater---------180m ethernet cable------Switch
                   |
48v 750mw--+

Bill / Joey I also have a couple of POE injectors that I would be happy to send you (sitting on a shelf at home) but I don't have a spare transformer.



Title: Re: Ethernet Extenders Cat5 run over 375 ft.. ??
Post by: brichter on February 24, 2011, 02:51:29 PM
Ok, I'm putting on  the  :186- hat:

Since the cable is already in place, the extender is the easiest and most cost effective solution, cut the cable in the middle and insert the repeater, with a 6"jumper between the switch in the store and the PoE injector.
...

I believe that the "middle" would be outdoors in an - uh - "public" location. :47-  Would this device be robust enough? 
I defer to your expertise.  :131-

We have the technology to make it so if it isn't.


Title: Re: Ethernet Extenders Cat5 run over 375 ft.. ??
Post by: channelmaniac on February 25, 2011, 02:52:36 AM
Sigh...

Just buy 2 of these

http://www.blackbox.com/Store/Detail.aspx/10BASE-T-100BASE-TX-G-SHDSL-Two-Wire-Extender-NTU/LB510A (http://www.blackbox.com/Store/Detail.aspx/10BASE-T-100BASE-TX-G-SHDSL-Two-Wire-Extender-NTU/LB510A)

up to 4.6Mbps at over 2km distance using a twisted pair of wires.


Title: Re: Ethernet Extenders Cat5 run over 375 ft.. ??
Post by: brichter on February 25, 2011, 05:26:49 AM
Yeah, but it's $818 for the pair...  :5- :96-

The repeater and injector I found would be about $230 ($160 for the repeater and $70 for the injector), but I might be able to dig up an injector which would save almost a third of the cost.


Title: Re: Ethernet Extenders Cat5 run over 375 ft.. ??
Post by: jay on February 25, 2011, 06:06:35 AM
I have an injector as well that I can donate to the cause.


Title: Re: Ethernet Extenders Cat5 run over 375 ft.. ??
Post by: brichter on February 25, 2011, 06:12:56 AM
Yours will probably be easier to find than mine...  :279- :208- :208-


Title: Re: Ethernet Extenders Cat5 run over 375 ft.. ??
Post by: StatFreak on February 25, 2011, 12:29:50 PM
Stat,

Technically speaking - the 100m distance restriction on ethernet is not based on electrical loss over distance but on timing.
Ethernet being a CS/CD topology expects responses otherwise it re-transmits etc. This is all tied up in the MAC (Media Access control spec).

If you type in CAT5 Extenders into google you should come back with HDMI, and DVI extenders which are good up to 1000ft (300m) over Cat5. The reason these work (and ethernet doesn't) is that the MAC is not Ethernet but a proprietary signal conversion. Its not an electrical loss problem.

MM (Multimode) fiber has the same 100m restrictions as Ethernet over copper because it works at the same frequency rate. Typically you use MM (vs copper) to do vertical runs between floors of an office building. Fiber is non-conductive and you do not get ground loop problems.
*** Electrictity always takes the quickest route to GND. So if you use a direct run of copper from Floor 12 to Floor 3. It is possible that if a short occurs on a PC on floor 12 that it would use the network path back to the 3rd floor vs the electrical path which might include a run between 5 offices, a breaker pannel etc.
Even if something as dramatic as a short does not occur you can get weird network problems showing up due to the different gnd potentials of being on different floors. The more floors, the more redundant paths, the more weird unexplainable problems on the network. You eliminate this by using fiber on your vertical runs.

SM (Single mode) fiber works on much higher frequencies and has two specs which are based on the diameter of the fiber (antenuation) and the strength of the optics. The first is a 15km (10mile) spec and the other is a 45km (30 mile) spec (for ethernet). SR vs LR. Again these distance limitations are based on the MAC spec and not on loss over distance. For instance an OC3 (155mb) or OC 12 (622mb) or OC 48 (2.5gb) can run 80km just fine over the same fiber cable. These just happen to be Telco standard interfaces and not Ethernet. So you would need a high end multiplexer or a router capable of supporting these interfaces.

I agree that Fiber is not cheap and termination of fiber and even the tools to do terminations are quite pricy.
Just for clarity what Brichter is suggesting is a Ethernet Repeater in the middle of the cable. The problem with this is that you need power to run the repeater and in the middle of no-mans land (aka the Arizona desert) outlets are hard to find. For many applications like Ceiling Mounted Wifi access points, telephones etc you can use POE (Power over Ethernet) to power these devices. POE comes from either a Ethernet switch designed for POE. Or via a device called a power injector which simply goes inline with your ethernet cable and injects power. The challenge is to find an economical ethernet repeater that accepts POE as its power source.

Switch-----POE Injector ---------------160m ethernet cable------------Repeater---------180m ethernet cable------Switch
                   |
48v 750mw--+

Bill / Joey I also have a couple of POE injectors that I would be happy to send you (sitting on a shelf at home) but I don't have a spare transformer.



Thanks Jay.  :3- I learned something new today. :131-


Regarding the POE solution, it looks like you guys might be able to save the day with hardware donations.  :259- guys!


Title: Re: Ethernet Extenders Cat5 run over 375 ft.. ??
Post by: channelmaniac on February 25, 2011, 01:04:50 PM
Yeah, but my solution just works. No need to screw around with POE or with running power down unused pairs... or running power to the middle of the run.

Black Box stuff *is* expensive, but if you look around you *CAN* find ways to save money and get stuff that will just work fine.

http://cgi.ebay.com/Black-Box-LR0020A-SDSL-Network-Extender-724-746-5500-/310179853404?pt=LH_DefaultDomain_0&hash=item483828f45c (http://cgi.ebay.com/Black-Box-LR0020A-SDSL-Network-Extender-724-746-5500-/310179853404?pt=LH_DefaultDomain_0&hash=item483828f45c) is a link to an auction where you can get the LR0020A units for < $50 each but they have NO AC adapter.

But, a bit of research turns up this: ftp://ftp.blackbox.com/anonymous/manuals/L/LR0020A-KIT.PDF which shows the AC adapter's specification is a 5v (regulated) with 1.5A DC output. You should be able to easily find these adapters.

These units will do over 2Mb speed at up to 12,000 feet of twisted pair phone cable.

RJ


Title: Re: Ethernet Extenders Cat5 run over 375 ft.. ??
Post by: racergiant on March 13, 2011, 07:09:34 AM
Not ethernet but, you need two of these...

http://www.microcom.us/loco5.html (http://www.microcom.us/loco5.html)

We use a pair of them at work as an uplink for an outdoor wireless network.  One is on a roof about 300 feet away and the other is on the eaves of the roof of the building with the gateway/router to the internet. 

They work great.  They have a signal strength light meter on the back so you can tell you're aiming it correctly.

Here's their full line of stuff.  You can get mounting gear and P.O.E. injectors so you don't need to run a separate power cable.

http://www.microcom.us/browse-by-brand--ubiquiti-networks.html (http://www.microcom.us/browse-by-brand--ubiquiti-networks.html)


Title: Re: Ethernet Extenders Cat5 run over 375 ft.. ??
Post by: brichter on March 13, 2011, 06:12:14 PM
Joey is death on wireless.  :283- :283- he doesn't even want it in the house or the shop.

Plus, there's already a cable run from the shop to the house and they had the County come out and trench the street for it.  :96- :72- :97- :208- :97- :72-  :96-


Title: Re: Ethernet Extenders Cat5 run over 375 ft.. ??
Post by: racergiant on March 13, 2011, 07:22:20 PM
The county trenched the street for Joey?

In the famous words of Darth Vader - "The force is stong with this one"    :131-   :131-


Title: Re: Ethernet Extenders Cat5 run over 375 ft.. ??
Post by: Buzz on March 13, 2011, 07:28:38 PM
Joey is death on wireless.  :283- :283- he doesn't even want it in the house or the shop.

Plus, there's already a cable run from the shop to the house and they had the County come out and trench the street for it.  :96- :72- :97- :208- :97- :72-  :96-

Bill I'm pretty sure the County Crew didn't trench it, only a saw cut was needed. They damn near didn't get the cut wide enough for the wire. It's really hard to get good help now days. But their employee pool is slim pickins in Bullhead, only a idiot would want to live in that HEAT.   :200- :200- :79- :79-


Title: Re: Ethernet Extenders Cat5 run over 375 ft.. ??
Post by: brichter on March 13, 2011, 07:43:20 PM
I thought somebody's nickname was "County".  Didn't the work crew come from California? :103-


 :208- :208- :208-


Title: Re: Ethernet Extenders Cat5 run over 375 ft.. ??
Post by: Joeylc on March 13, 2011, 07:44:50 PM
Quote
"BUZZ'S QUOTE"  But their employee pool is slim pickins in Bullhead, only a idiot would want to live in that HEAT.

Walter on Arizona weather
we love it here
  :37- :30- :37- :30- :37- :30- :37- :30-
http://www.youtube.com/watch?v=t87KOwzHYvA (http://www.youtube.com/watch?v=t87KOwzHYvA)&
http://www.youtube.com/watch?v=62ib2EmvE9s (http://www.youtube.com/watch?v=62ib2EmvE9s)


Title: Re: Ethernet Extenders Cat5 run over 375 ft.. ??
Post by: Buzz on March 13, 2011, 08:01:34 PM
I thought somebody's nickname was "County".  Didn't the work crew come from California? :103-


 :208- :208- :208-

Naa  It as a loco crew that did it. The guy doing the sawing said he was originally from Kentucky, I don't think he's real bright.  :60- :60- :81- :81-


Title: Re: Ethernet Extenders Cat5 run over 375 ft.. ??
Post by: danw on May 09, 2011, 01:14:42 AM
In my line of business, I have to do crazy runs like this all the time.  Can I ask a few questions that dont seem to have been asked?
How long is the actual distance from one building to the other following the actual cable path?
Was the cable run in a conduit pipe?
Did you use Cat5, Cat 5e, or Cat6 wire?
Was the wire outdoor rated?
Did you install lightning arrestors?

Here is why I ask...
If the buildings are less than 300' apart, or close to 300', put a switch on each end as close together as possible.  The switch will read the signal and re-broadcast it to the next device.  You are theoretically allowed a maximum of five devices from point to point...  (ie. Computer-switch-switch-switch-router)  I've seen it work with more, but opens up too many possibilities of failure.

If the cable was run in conduit pipe, you can easily pull through a better cable.  The difference in categories of cable is how tightly the wires are twisted.  The tighter the twist, the lower the attenuation loss.  If you pulled 5, or 5e, pull it out and run Cat6. 

If you didnt use a conduit, I hope you used outdoor rated cable.  Normal cable doesnt have any real shielding qualities to it and will most likely pick up interference from ground minerals, water, etc...

If you run past any magnetic interference, you need to do whatever you can to move it away.  This includes flourescent lights, or any high voltage power lines.  If you have to go near them, always cross them, never run parallel with them. 

If you didnt install lightning arrestors, this could be a fatal move to the other equipment in the building.  I've seen someone lose an entire network of machines when a lightning bolt hit a wire they ran between buildings.  If they are too expensive out there, I have 4 or 5 left over ones from a job I'd give to you just to help out.  They are very easy to install.

I hope this is useful info.  If you want the arrestors, send me a PM, and I'll ship them out.