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Topic:
Fiber Tools???
This thread has 22 replies. Displaying posts 16 through 23.
Post 16 made on Tuesday April 6, 2010 at 21:45
Late Night Bill
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On April 6, 2010 at 20:58, jimstolz76 said...
 bump

so let's say we want to prewire all the TV locations at a job (that I have to finish the proposal for tomorrow) with fiber left in the wall for "future"

I'm going to call Liberty in the morning, but I don't even know what to ask for.  I'm looking on their site right now but it's all a bit Greek to me...  

We'll be proposing a component matrix for right now and haven't decided on exactly what we'll be running to the TVs.  May be a Liberty 23awg 6 mini-coax bundle with 2 Cat5 plus an additional 2 Cat6 (plus fiber, hopefully)

Where do I start?  :)

edit - oh, and what do I do with the fiber that will just be hanging behind the wall, and what about the stuff that's going to end up near the patch panels for the rack?

Also give us a call at 619-258-2000. We have fiber in stock, cut to length. If you only need 345 feet for this job, we will sell you 345 feet, no upcharge for the custom length.

Video over fiber is primarily using 50 micron multimode fiber (both NeoPro and Crestron solutions). We only require a single fiber, but I always recommend a duplex fiber. That way whatever happens, either a break, or maybe super 4K 3DTV 20 years from now, whatever, you have some room to grow.

How you handle the unterminated fiber behind the TV and headend is not critical. The fiber is not going to rot, degrade, oxidize, or anything like that. Just coil it up and hide it for now. If you want to spend some money to make it look nice, than terminate it all to a patch panel at the head end, and we can get you some keystones for the TV ends.
Post 17 made on Tuesday April 6, 2010 at 21:51
Late Night Bill
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On April 6, 2010 at 21:32, MikeZTC said...
Fiber needs lots of TLC. You can't treat it like copper. While they do sell SC keystone jacks there is no way you're going to get a proper bend radius inside a 4" stud wall...

If I were starting from the ground up, I'd install Chief PAC 510s at all of the displays, and terminate the fiber to a wall mount fiber box like this one:

[Link: molexpn.com]

Then, when it's time to install gear, you have all of your infrastructure in place with a nice cubby to hold your receiver.

You don't need to use stuff like that for this type of application. In the telecom world where an extra dB of loss is critical, than yes. But with our equipment running over multimode at less than kilometer lengths, we have excess laser power, so bend radius is not a factor. In fact we have fibers here with a 5mm minimum bend radius. Basically we can operate just fine all the way down to the minimum bend radius for the glass itself, and can ignore the losses.

Last edited by Late Night Bill on April 6, 2010 22:06.
Post 18 made on Tuesday April 6, 2010 at 22:05
Late Night Bill
Long Time Member
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On April 6, 2010 at 21:25, jimstolz76 said...
Do you have to do anything "special" to protect it?

Depends on the fiber. Some are like lamp cord where you can pull it, but if you get a major rats nest and try to yank it through a rough in hole, you probably break something. With a minor amount of care and attention, you can pull in the zip cord type into rough in, and if you are diving attics and pulling through small sections at a time, no problem.

But if you employ a bunch of gorillas, than we also have a 2 and 4 fiber 'armored' cable for much less than $1/foot. It's not metal based armor, but it has a fiberglass stiffner to avoid rat's nest balls, and plenty of otuer jacket and strength fibers, where the gorillas would have a difficult time screwing up a rough in through studs. It's something like 360 lbs pull strength and you can run it over with a truck.

Speak up and we can send you a free sample of any of the above.

Here's a datasheet for the fiber we have:
http://www.neoprointegrator.com/documents/NeoProFiberOpticCable-preliminarydatasheet.pdf

Last edited by Late Night Bill on April 6, 2010 22:28.
Post 19 made on Tuesday April 6, 2010 at 23:29
audioslayve
Select Member
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On April 6, 2010 at 21:32, MikeZTC said...
Fiber needs lots of TLC. You can't treat it like copper. While they do sell SC keystone jacks there is no way you're going to get a proper bend radius inside a 4" stud wall...

If I were starting from the ground up, I'd install Chief PAC 510s at all of the displays, and terminate the fiber to a wall mount fiber box like this one:

[Link: molexpn.com]

Then, when it's time to install gear, you have all of your infrastructure in place with a nice cubby to hold your receiver.

Thats a very functional little box. I like the coil inside for extra slack. Although I hate external mount anything.. but it is very functional.
The optimist claims the glass is half full; the pessimist claims it is half empty. An engineer observes that the glass is twice as big as it needs to be.

Ps, you can't fix stupid
Post 20 made on Wednesday April 7, 2010 at 00:43
MikeZTC
Senior Member
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1,325
On April 6, 2010 at 21:51, Late Night Bill said...
You don't need to use stuff like that for this type of application. In the telecom world where an extra dB of loss is critical, than yes. But with our equipment running over multimode at less than kilometer lengths, we have excess laser power, so bend radius is not a factor. In fact we have fibers here with a 5mm minimum bend radius. Basically we can operate just fine all the way down to the minimum bend radius for the glass itself, and can ignore the losses.

Well, I'm in the business of high-availability. If my clients' display is down, it very well be a matter of national security. I come from Telcom, so these sort of widgets are standard fare. More importantly than power loss is ease of installation and serviceability. When you've got a display at 60" AFF, you need at least 3' to get the end of the cable to your accessible working height. I don't want my guys trying to cut, clean, cleave, crimp, and leave while on top of a ladder juggling a jacket stripper, a strip guide, a cleaver, alcohol, swabs, and a crimp tool on a paint tray. I've personally done that and have the failure rate of connectors terminated in that manner vs. Connectors terminated on a table to back up the added $100 for the proper enclosure. But, who am I to dictate installation methods to a manufacturer. It very well MAY work, but I'm just not wiling to take that risk.
MikeZTC, CTS-D, CTS-I, DMC-E
Post 21 made on Wednesday April 7, 2010 at 00:46
MikeZTC
Senior Member
Joined:
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On April 6, 2010 at 22:05, Late Night Bill said...
Depends on the fiber. Some are like lamp cord where you can pull it, but if you get a major rats nest and try to yank it through a rough in hole, you probably break something. With a minor amount of care and attention, you can pull in the zip cord type into rough in, and if you are diving attics and pulling through small sections at a time, no problem.

But if you employ a bunch of gorillas, than we also have a 2 and 4 fiber 'armored' cable for much less than $1/foot. It's not metal based armor, but it has a fiberglass stiffner to avoid rat's nest balls, and plenty of otuer jacket and strength fibers, where the gorillas would have a difficult time screwing up a rough in through studs. It's something like 360 lbs pull strength and you can run it over with a truck.

Speak up and we can send you a free sample of any of the above.

Here's a datasheet for the fiber we have:
http://www.neoprointegrator.com/documents/NeoProFiberOpticCable-preliminarydatasheet.pdf

Panduit and AFL have excellent training material on pulling and terminating fiber. Definitely worth a google search and some chit-chat.
MikeZTC, CTS-D, CTS-I, DMC-E
Post 22 made on Wednesday April 7, 2010 at 07:26
avconnection
Long Time Member
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Belden came out with a quick and easy solution.
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Post 23 made on Wednesday April 7, 2010 at 12:33
jimstolz76
Loyal Member
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5,607
 (posted this once and it never appeared?)

Bill, your fiber prices STOMP all over Liberty's.  Almost half.  Just sayin'...


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