Questions tagged [data-wiring]

Questions about planning, installing, and servicing network cabling such as computer networks, home automation, and so on. See also the [cabling] tag.

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67
votes
15answers
34k views

What should I consider regarding LAN wiring before building a house?

I am planning a small house (4 rooms, 2 floors, no basement, no attic, 120 sq.meters) and I want to run a lot of LAN cables throughout because of poor WiFi experiences in my apartment. Because the ...
36
votes
7answers
52k views

How do I run ethernet cable through a wall cavity?

I want to install an ethernet jack in an interior wall of one room. I'd like to run the cable up through the wall cavity (so it is hidden) into the crawl space and back down another wall to another ...
23
votes
7answers
32k views

How do I run cable through my ceiling?

I have a cable that I need to run through the ceiling. I'd like to go under the floor, but I have a split level house, and this is the lower floor, so I don't believe there is room in the bottom half ...
22
votes
5answers
47k views

What is the proper way to run Category 6 underground?

I'd like to run some Category 6 cabling underground, for a distance of about 120 ft, between a main home and a 2nd unit, for ethernet connectivity between the two homes. I've run Category 5 indoors ...
22
votes
4answers
26k views

What should I use to secure/organize data cable runs?

I am running Cat-6 and Coax in new construction. I am looking for advice/best practices on how to organize and secure the cables during the runs. I will be running 2 Cat-6 and 1 Coax to a single-...
21
votes
3answers
5k views

Repurpose telephone line to ethernet

I have a (UK) telephone socket in the same corner of each of the three floors in my house. My broadband router is connected to the socket on the bottom floor. The wiring looks like the following: ...
19
votes
3answers
24k views

Is running ethernet cable through an air return allowed under US code?

I'm looking to wire up the second floor of my house and the cold air return provides a convenient, straight run from the office to the utility room. Is it safe and within code to run ethernet cable in ...
12
votes
5answers
3k views

What are some pros, cons and recommendations for multicables?

Currently saving to build a new home and I'm going over wiring options in my mind. My current home has too few sockets, cable connections and LAN ports (yes I still like wired LAN, wireless is good ...
12
votes
10answers
119k views

How can I run Cat5e cable through a completely finished house?

My family and I are interested in buying a house that was built in 2002. This house is two floors on a concrete slab with a finished bonus room upstairs so there is no attic other than above the ...
12
votes
2answers
45k views

Is there any code for running Ethernet cable (through attics)?

We have an unfinished attic - the insulation-everywhere, step-in-the-wrong-place-and-fall-through-the-ceiling kind. I'd like to run Ethernet cable through the attic. I know for Romex, I'd have to ...
12
votes
6answers
42k views

Is “don't mix data and power cables” and “don't loop power cables” still valid nowadays?

There are two sayings I keep hearing when talking about wiring e.g. home cinema or computer hardware; Don't wrap data/network cables and power cables up in the same loop because the power cables will ...
12
votes
1answer
12k views

Running cat 6 networking cable in the attic: what is up to code?

I plan on adding a Cat 6 network in my single-story detached home. It would consist of home runs from each of the 3 bedrooms + TV room to a central patch panel in the garage, which is close to the ...
11
votes
5answers
19k views

What type of ethernet cable do I need for outdoor use?

I want to run about 100 meters of Ethernet cable out my attic and down a drainpipe. The cable will be exposed to the elements, and attached to a gigabit switch (indoors) at both ends. What kind of ...
10
votes
5answers
54k views

What is the official name for wiring hole stops/plugs and where can I buy them?

We have several holes in our house (floor and external wall) that are used for cables (coax and cat5e). The holes are bigger than the cable that goes through them so we'd like to minimize the excess ...
8
votes
4answers
5k views

How Do I Plan for an Intrusion Detection System?

I would like to plan for an intrusion detection system in a home that is currently under construction. The home has a walkout basement that is sloping, shown in the rear elevation picture shown below....
8
votes
2answers
2k views

What should I leave in the walls to allow me to fish future wires?

I'm working with a builder, and I did all of my own low-voltage wiring to open low voltage single gang plates. I have some runs that I want to be able to fish future wires through. Some of my runs ...
8
votes
4answers
26k views

How do I get all these wires up from the basement to the attic?

I'd like to run new cabling for data, voice and tv but I'm having a hard time figuring out how to get some of the wires up to the attic for the 2nd floor and would like some advice. I've run cables, ...
7
votes
6answers
22k views

Does a (non-splitting) cable splitter degrade the signal?

I have cable and cable internet in my new apartment. The cable comes in to the water-heater closet from the roof and comes out an outlet in the wall of the closet, but there is a 4-way splitter in ...
7
votes
5answers
58k views

How many CAT6 cables can fit in 3/4 conduit?

I was planning to get 3/4" conduit (Carlon ENT/Smurftube) to run network cables through the house. Just how many CAT6 cables can safely fit into 3/4" conduit?
7
votes
2answers
2k views

Will security system wiring cause interference in data cables?

Is it acceptable to run 22/4 security wire along side Cat6 and Coax cables, or is there any possibility for interference?
7
votes
2answers
2k views

How do I terminate coaxial cable in a crimp on F type connector?

I've got some coaxial cable, and I'd like to put F type connectors on the end so I can use the cable to connect my TV to the Cable box. How do I put ends on the cable?
6
votes
3answers
2k views

Can I use coax outlets for cable modem?

I recently moved into a home where each room has a coaxial wall plate. My ISP provides internet through a cable modem, where unfortunately the cable input is in a non-ideal location. Next to that ...
6
votes
3answers
9k views

Running ethernet under ground to another building

I'm trying to run ethernet cable about 250ft underground to the garage. It is going through a hard plastic/rubber tubing under the yard and into the garage. Is there anything I should know before ...
5
votes
7answers
6k views

Replace existing phone jack with network cable

I'm trying to get wired network to my living room since wireless isn't ideal for streaming high quality video. My first instinct was to replace the existing phone jack, since I don't have landline ...
5
votes
7answers
47k views

How should I wire for a security system during construction?

I would like to run wires in anticipation of a future hard-wired security system. However, I have yet to find any information that pulls everything together regarding what is required. From what I ...
5
votes
3answers
73k views

How can I pass cables vertically through walls that contain fire blocking?

How can one pass (speaker) cables through walls from the floor to the ceiling. I am assuming that drilling a small hole at the top, dropping the cable I want to pass through and catching it at the ...
5
votes
3answers
1k views

What should I consider when burying cable?

What should I consider when burying standard coaxial cable between the local pole and my house?
5
votes
2answers
15k views

Do open-back low voltage boxes have advantages over standard outlet boxes?

I will be running LV wiring in new construction. I've seen the open backed Carlon boxes, but have read that they are difficult to insulate, and therefore should not be used on exterior walls. I ...
5
votes
1answer
1k views

Can PoE cause interference with neighboring non-PoE Ethernet cables?

I plan on upgrading my home Wireless Access Point in the near future and rather than running an extension cord to the location I was thinking about getting a WAP that supports Power Over Ethernet. My ...
5
votes
3answers
17k views

How do I properly bring in coax from the pole to the interior of my house?

As it is now, the coax comes off the pole and is anchored under the eave with a coax grounding block. From there, the local cable company stapled the coax down the siding, then horizontally around a ...
5
votes
3answers
13k views

How can I convert Cat5e wired sockets to Ethernet?

I recently moved to a new home and I noticed that the phone jacks (RJ-11) were connected using Cat5e cable. I'm thinking I can replace the RJ-11 plugs with RJ-45 and use Ethernet over the existing ...
5
votes
2answers
944 views

Does conduit terminated in backless gang boxes defeat the purpose of fireblocking?

My understanding for an ENT conduit (other than for future flexibility) was that it was fire-rated, to reduce the spread of fire/air-flow between floors. If the conduit went through fire-blocks or ...
5
votes
3answers
2k views

How would I ground an internal ethernet surge protector?

I have a Cat-6 cable running to an external PoE security camera that I'd like to have surge protected, but I'm unsure how to ground the protector. It has a prong coming off that I assume is the ground ...
4
votes
6answers
5k views

What can I use to lubricate CAT6 cables while installing them?

I am about to run some network wires inside the wall at home. I had already done so but apparently too much pressure on them while pulling caused one of the pairs to go bad and therefore prevent ...
4
votes
3answers
29k views

How to use network patch panel in new house

I just moved in to a townhouse built in 2007 with a seemingly nice CAT5 and coaxial cabling. In fact, I found a patch panel in the closet! I opened it and found this: I also noticed some of the ...
4
votes
2answers
1k views

Using fire retardant sealant for low-voltage cables through walls

I plan to wire my house with CAT6 cables, running inside the walls (drywall, wood). I would have to drill through the floor and probably through fire blocks in between the studs. Lot of guides advise ...
4
votes
3answers
14k views

Cat 5/6 in same conduit as power: is NM-B required, or is THHN acceptable?

Preface: I'd like to avoid the question of whether one should run data and power together; my question is focused on Code compliance. I'm trying to ensure I interpret Code correctly when running Cat ...
4
votes
3answers
20k views

How can I run Ethernet cabling through concrete walls?

I'd like to run CAT6 cable between 3 rooms which are separated by concrete walls. What are my options? I'm looking for the least intrusive way.
4
votes
2answers
383 views

Alternatives to signal on power for home automation systems (such as UBP) - low-voltage circuits, wireless…?

I am kind of averse to using signal on power for home automation systems such as UBP as this seems to be shared with the outside world (I read somewhere that the signal can travel as far as the ...
4
votes
3answers
1k views

How do I run ENT to an old work box?

I have an existing low-voltage old-work box similar to this which I am using to provide a cable TV outlet: I would like to run more cables to this location, namely, phone and CAT6. I do have access ...
4
votes
2answers
9k views

How far should a CAT5 cable be from a power cable? [duplicate]

In a few days, we will be having a small tower set up so that we can have internet connection in our rural home. We need to trench a cat-5 cable from the tower to our house but we also want to, in the ...
4
votes
2answers
106 views

Where should shielded data cables be grounded?

In the comments on this question (Using PEX as wire conduit), the issue of grounding shielded data cables on one end vs both ends came up. For any arrangement of cables (ex. single cable, multiple ...
4
votes
1answer
14k views

Installing Coax & Cat6 in 2-Gang with Electrical?

Using a 2-gang box, can I install a (1) outlet, (2) coax, and (3) Cat-6 line without code or interference issues? I have an existing 1-gang box with electrical that I am running the coax and cat-6 ...
4
votes
1answer
2k views

How do I choose a recessed alarm contact switch?

With so many window and door recessed contact switches, how does one decide the best one for the application? I was leaning towards Ademco 3/8" Diameter Miniature Press Fit Magnetic Contact, for ...
4
votes
3answers
5k views

How can I reconnect home ethernet that has been terminated outside?

I recently moved into a newly re-wired house where the electrician terminated the ethernet wiring outside of the house. Wires are coiled/zip tied into a box on the exterior wall. The same box that ...
4
votes
2answers
2k views

Is there any NEC code requirement for how far off the floor Category 5 wiring must be run?

I am currently running conduit for Cat5e cable in the home office I am finishing off. Are there any rules in the code for how far off the floor Category 5 wires in conduit must be run?
3
votes
2answers
1k views

Is my plan for wiring ethernet reasonable?

I would first of all like to start off by saying that I am a software developer by profession, so my networking knowledge is relatively basic. My question is therefore aimed at figuring out if I am ...
3
votes
3answers
2k views

Help connecting cat5e cables for home networking

I'm renting an older house that was renovated a few years ago, and I'm hoping to utilize the cat5 wiring in the house for networking. Here's the setup: internet --> coax --> modem --> ...
3
votes
3answers
4k views

Cat 6 and Romex run perpendicular

I am mapping out a path to run Cat6 thru my house. I know not to run Ethernet parallel to power and the Intartubes say to try to cross at right angles. But how much interference will I get by ...
3
votes
3answers
3k views

Is there a way to fish a cable (network) using an existing one as a guide?

Are there any devices that allow you to basically clip a wire to an existing wire in a wall and use it as a guide? I had my house wired for networking, but that was before I upgraded to gigabit ...