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Junction box for fiber connection

MerlinsBeard

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Mar 27, 2020
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398
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MD
I'm trying to figure out some options for routing fiber to a structured media enclosure through the corner on the left. I have a slightly wider than 10" stud bay and I'm looking for something to put in place that would act as a pull box and still look finished after the fiber is installed. I tried to get what I think is a slip PVC coupler like the power conduit (see image), but what I bought doesn't fit the data conduit (do I need to buy the next size up?). First question is what do I buy to make the PVC entry into the junction box look similar to the power conduit into the subpanel? My first parts buy didn't work out right.

Second question is what enclosure to use. The three options I'm looking at for an enclosure are Altronix BC-100, BC-200, and a Legrand On-Q 9 In. ENP0900NA, flipped sideways, though I'm open to other options.

The BC100 has the smallest form factor, but it would need to be bumped out since the depth is only 3.5". The PVC comes out a bit, so if I put a piece of plywood or 2 to bump out the enclosure, I should still have clearance, but have my reservations.

The BC200 has a depth of 4.5", but is more expensive and doesn't appear to have top conduit knockouts. I'd probably be looking to make my own knockouts, but I think this would work out of the box. I'd still need to shim or frame the box appropriately to install it in the space. Buying the knock out punch tool is pricey though, but I'd prefer it to a hole saw.

I've seen quite a few of the On-Q in wall enclosures for TV media boxes, and I think it may work as a cheaper alternative.

I'm planning for the data conduit to be 3/4" going vertically up out of this enclosure, then through the corner, then transition to 1" PVC just before terminating in the leviton structured enclosure since it has 1" knockouts.

Appreciate any feedback.
 

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Innovate1

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Jul 28, 2014
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4,297
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Illinois near St. Louis, Missouri
The power panel conduit looks a little like a box adapter. They push into a female socket - either a conduit belled end or a coupling. But it looks longer than typical so not sure what you have there. Here's a 1/2" one:

https://www.homedepot.com/p/1-2-in-PVC-Conduit-Box-Adapter-Standard-Fitting-E996DR-CTN/100117596?

Not sure what to suggest if it isn't standard conduit size.

3/4 is a bit small for fiber fittings. I was glad I had 1" for the run between house and shop. You also want to be careful not to bend the fiber to sharply - it has a minimum bend radius. I made a block to fit into an LB in my run to give it a bigger radius for the turn.

Can't help you on data enclosures. I didn't use one.
 
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b-boy

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Oct 2, 2013
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2,155
Location
Buffalo NY
I'd go 1" for conduit if you can. I did a 300 ft pull in 1" conduit. It was fine until I hit some 90s. I think it would have been a problem with 3/4" conduit.

I didn't use a box. I have a media enclosure at each end. My fiber convertors are in the media enclosures along with my routers.

Get yourself a good pulling eye as well. I bought a cheap one and it self destructed halfway through the pull.

I had to cobble together a new one using pieces of the old one and some spare CAT6.
 
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MerlinsBeard

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Joined
Mar 27, 2020
Messages
398
Location
MD
I'd go 1" for conduit if you can. I did a 300 ft pull in 1" conduit. It was fine until I hit some 90s. I think it would have been a problem with 3/4" conduit.

I didn't use a box. I have a media enclosure at each end. My fiber convertors are in the media enclosures along with my routers.

Get yourself a good pulling eye as well. I bought a cheap one and it self destructed halfway through the pull.

I had to cobble together a new one using pieces of the old one and some spare CAT6.
I have 1" conduit the whole way except I'm not sure about navigating a california corner with a 1" PVC. Would have to heat deform the sweep to make that turn, but that would be the only sharp turn. Thinking of going 3/4" conduit through the california corner. The stud is for drywall support only, so I could notch out the back part of the stud to make some room. Probably have to make my own scrap corner to try it out first before I do the real thing.
 
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