This post is part of the Home network v2 series.

I first got started on the network run from the attic switch to the 2nd floor den β€” back in October of 2021. I finished it a year later, so it’s about time to get this blog post published πŸ˜›

Table of contents

The plan

I’ve had wired network to the 2nd floor den since we moved in. Initially I had a UAP-AC-IW, which I later replaced with a ceiling mounted U6-Lite.

I used an existing conduit for the previous run, but the location wasn’t ideal. To get from the old network outlet, marked with 1 on the floor plan, to where I needed it β€” it had to cross in front of the terrace door πŸ˜•

The new network outlet, marked with 2 on the floor plan, comes out right where I need it πŸ‘

Floor plan β€” 2nd floor

I first tried to find out if the interior wall had insulation; using my fish tape I felt for resistance going down into the wall from the light switch wall box.

I concluded there was no insulation, making the job easier. Remember; this was before I did the network run to the twins’ rooms.

Using fish tape to check depth of interior wall

Next I tried to figure out where to look for the interior wall in the attic. I sketched out the distance between the windows and the interior wall, and when how those were placed in relation to the roof peak.

Drawing to help find interior wall from the attic


Then it was time to get up in the attic and find the wall β€” which turned out to be really easy 😎 The ceiling boards are in different directions in the two rooms, and I knew the conduit to the light switch went down into the same wall.

Flexible conduit, going down into interior wall from attic

I started by drilling a small hole, just to verify that it didn’t come out in the ceiling somewhere.

Drilled a small hole into interior wall, from attic

Then I tried a nail to a string…

Nail tied to a string

And drilled a 22 mm hole β€” large enough to fit the 20 mm conduit.

Drilled 22 mm hole into interior wall, from attic

Then I drilled a 73 mm hole in the interior wall.

Drilled 73 mm hole in interior wall

I dropped the nail, with the string, down into the hole from the attic.

String going down into interior wall, from attic

And pulled it out through the 73 mm hole πŸ₯³

String coming out of interior wall, in 2nd floor den

The conduit

Back in the attic β€” I cut the string, and attached it to the conduit. Now I could use the string to pull the conduit down, and out of the hole in the wall.

Conduit coming out of 73 mm hole

I fastened the conduit to the ceiling joist.

20 mm flexible conduit going down into interior wall, from attic
Attic, with a piece of insulation removed

And put the insulation back πŸ™‚

Flexible conduit, coming out between insulation sheets

About three months later; I finally cut the conduit and mounted it in the ELKO multi box.

ELKO multi box with conduit mounted in interior wall

Then another nine months passed before I continued running conduit in the attic πŸ˜›

Mounting flexible conduit, in the attic

It goes from the attic network cabinet, along the ridge beam, to the conduit I pulled a year earlier.

Flexible conduit, alongside ridge beam

To make it easier to pull the CAT6 cable, and prevent condensation in the conduit, there is a gap between the two conduits. I will cover it with a metal cable protection later.

Flexible conduit, in the attic

Pulling the cables

I taped two CAT6 cables together and started pushing them through the conduit going down inside the wall, but they got stuck after a few meters.

Pushing, or pulling, cables through a loose conduit is often challenging; as the whole conduit twists and moves. And this one was just hanging loose inside an empty interior wall.

CAT6 cables β€” in the attic

With the help of my trusted fish tape β€” pushing and pulling, I was able to get it through. These kinds of jobs are so much easier with two people, but I was by myself.

Two CAT6 cables, fastened to fish tape, coming out of ELKO multi box


For the termination β€” I did the same as on my previous network run. I’ve copied parts of the explanation, since much of the process was identical:

I removed the outer jackets, and mounted the double CAT6 outlet. Luckily the wall box is quite deep, leaving a fair bit of space behind the outlet. Since the CAT6 cables comes into the box at the top β€” I found it best to turn 180Β°, leaving them pointing upwards.

Figure showing CAT6 cable routing inside multi box

Due to the depth and size of the wall box; I was able to do this without kinking or putting strain on the CAT6 cables.

I terminated the lower block first β€” using a punch down tool. I also made sure to leave the pair twisted as close to the terminal block as possible. 1 cm of untwisted pair is the recommended maximum.

Twisted pairs sticking out of double RJ45 outlet

On the attic site; I used tool-free keystone jacks.

Fitting tool-free keystone jack to CAT6 cable
CAT6 cables with tool-free keystone jacks

I routed two pairs differently β€” to free up some space. It does get pretty crammed by the punch down terminals.

CAT6 cables, terminated in double RJ45 network outlet

On with the front plate; one new discreet double network outlet πŸ‘

ELKO Plus double RJ45 network outlet

The tool-free keystone jacks I used were for CAT6A, which is thicker than CAT6, so I wrapped some left-over cable jacket around the CAT6 cable β€” for the zip-tie to get a better hold.

CAT6A tool-free keystone jack

Checked with my Fluke network tester.

Testing CAT6 with Fluke MicroScannerΒ²

Secured the keystone jacks in the patch panel.

Patch panel and switch in attic network cabinet

I patched the new network runs into the attic switch, using 0.5 m patch cables.

Patch panel and switch in attic network cabinet

The small network cabinet, 4U 10", is filling up πŸ™‚

Attic network cabinet β€” with door closed

Lots of activity on the network ports when everyone is gaming πŸ™‚

Blinkenlights on attic access switch

This network outlet in the 2nd floor den is used for media: TV, Shield, PlayStation, and computer.

Closing thoughts

This network run took me a long time to finish β€” almost exactly one year on the day πŸ˜› Mostly because I already had wired network in the 2nd floor den, only its location was inconvenient.

And it took me over five months to get this blog post published 🀷 Oh well, procrastination for the win I guess πŸ˜›

Onto the next project πŸš€