Questions tagged [cabling]

Cabling is the activity of planning how to install cables and wiring for electrical and optical systems and the activity of actually installing cables, wiring, patch panels, racks, and other equipment and facilities for routing and managing physical cables, both power cables and information/data cables. This tag can be used for questions as to the design of wiring infrastructure including physical management and electrical environment and safety.

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Is it a bad idea to use WiFi to connect computers on the shop floor of a small/medium Manufacturing plant? [closed]

I'm the new IT manager for a small-mid sized manufacturing company. I'm also new to IT in general, this is my first job after graduating with a computer science degree. We manufacture HVAC parts and ...
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No power delivery with PoE though a tested cable

I'm facing an issue with PoE and a cable extension. I have an HP 1920-48-PoE+ (JG928A) switch and a Cat6 wire installation. All the house wiring is connected directly to the PoE switch. I want to ...
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2 answers
228 views

DIY Cat6 cables only giving 100Mbps instead of 1Gbps

I've made my own ethernet runs in the past and they've always worked great. I needed to make some more so I got some cable, some RJ45 connectors and a crimper. No matter what I do I can't get the ...
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Can I use Cat6A FTP RJ45 Module (IDC Punchdown) with a Cat7 cable?

We are undergoing renovation works and I was planning to cable the flat with Cat6A S/FTP cable and Cat6A terminations. We have bought CAT6A modules and faceplates (These) but we have been mistakenly ...
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Why don't some of my devices connect to internet and yet some don't?

So I have run 4 wire ethernet throughout my house and I can't connect to the internet on my ps4 and some other devices on the socket in my main room but am able to do so through my laptop. Is it ...
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2 votes
1 answer
62 views

Ethernet Networking to Multiple Walls from Conduit

In my Conduit Closet, I have an ethernet cable coming in from my ISP (WAN). In the same closet, there are 3 other ethernet cables (one to each room in my condo), and they are wired to an ethernet jack....
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Lan cable passes cable tester but doesnt work (partially)

So I bought brand cat 7 roll from amazon with good reviews (dont need cat7 in this particular case just want to connect a 2 meter cable @ 100mbps) How I connected the ends 1st pin orange stripes 2nd ...
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Cat5 patch cable: wire number 5 not working

So I have recently found out that all my phone sockets have been wired with cat5 or cat5e cable. I don't know which. I've upgraded my internet so thought about repurposing the cables as patch cables. ...
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1 answer
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How do I open this RJ45 wall jack?

Hi I am try to see if the cables in this RJ45 wall jack are put in correctly but I can’t seem to figure out how to open it. Does any know if this can be opened or does it have to be broken?
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Why am I seeing pairs 1 and 2 failing on a newly rewired Cat6 run throughout my house?

I have replaced Cat5e and pulled Cat6 cable throughout my house. I installed a few extra wall ports so we could hard wire game consoles etc. The issue seems to be that when checking the ports and ...
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How to connect an Android with a single USB-C to both Ethernet adapter & USB at the same time

Scenario I have a running setup like this My laptop is connected to a USB hub on which attached 2 smartphones. The phones are plugged in NOT FOR CHARGING, but for debugging apps on the phones. Now,...
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10 votes
6 answers
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Is it possible to connect an old RJ11 phone line into a Cat 6 wall socket to use for FTTN service?

I just moved into an older house and the NBN guy told me the phone socket's been cut off and plastered over. I checked with the previous owner and he said that the cord is just cut off, sitting under ...
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1 answer
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Soft(standard) ethernet cable doesn't work with internet port in hawawei router (HG255s)

I have HG255s hawawei router which is connected to the ISP as follow: The HG255s router -> hard(solid) ethernet cable -> an ethernet port in the wall -> hard(solid) ethernet cable in the wall -> ...
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1 answer
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Cat 6 network cable not working

During some refurbishment, I have recently added a cat 6 cable around a room in order to add wireless access point. However, it is not working: this is the setup that I was aiming for: Modem/Router ...
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5 votes
3 answers
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Can I string ethernet cables?

Is it possible to string Ethernet male-to-female cables? I have a cable I need to extend, but it's in the wall, so I can't just replace it with a longer one. It has no connectors yet, so I'm thinking ...
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Just found this unmarked HDMI female-to-male HDMI "patch"-style cord

It's only my wife and I in our house (two years now) and we don't regularly have any guests over. My wife isn't super tech-literate and doesn't make any purchases on household electronics, and I ...
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14 votes
1 answer
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Can you run PoE Cat6 alongside standard Cat6 cables?

I need PoE for some devices (CCTV cameras, WiFI Access Points) - can these wires be run in parallel with Cat6 cables going to non PoE devices (e.g. datapoints of PC) Cat6 HDBaseT Cables being used ...
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Ethernet cable issue

Need some wisdom! Recently refurbished my house, so took advantage of the building work to lay cat 6 cables everywhere. Before all the work was completed I tested the each cable and they were all fine,...
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Krone vs 110 style punch-down tool / patch panel

I recently discovered there is a difference between 110 and krone blocks. When trying to use an (old) cheap model krone style punchdown tool on a patch panel in my new premises I found it very ...
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1 answer
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Router to router connection failing, long cable

Here is the scenario: Router 1 is plugged in to a modem in its "wide area network" (WAN) port. I connect one of Router 1's "local area network" (LAN) ports to Router 2's WAN port via a very long CAT ...
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1 answer
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Cabling between inverter and single board computer

I'd like to interface an inverter with Gateworks GW5220. The inverter has an RS232 port shown below and GW5220 has a 5-pin RS232 Serial interface. The GW5220 serial connector is labeled as follows: ...
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1 answer
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How to setup home network with two routers (or "to not waste superb WiFi router in basement")

I have the crazy plan to rewire my home network. Well currently it is a rather simple set up I guess, that I'd like to complicate :-) to get rid of my (not very stable) powerline adapters and to ...
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3 votes
1 answer
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Is one ent conduit sufficient for cabling two side by side rooms?

I am having a house built and am paying to have a contractor run low voltage conduit from every room in the house to a home network closet under the basement stairs. In an attempt to cut back on cost ...
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2 votes
1 answer
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Are lightning strikes really a risk for outdoor Ethernet in the UK?

So essentially as the title says, I have read a couple super user ‘articles’ regarding the use of surge protectors with outdoor Ethernet, my question is would a lightning strike be a risk for about 2-...
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home network: Cat 7 S/FTP patch cable is too slow

I pulled some CAT 7 S/FTP cables inside my walls but when using those I only get around 70/400mbps. I should be getting 700/700 at least, which I do get connecting myself directly to the router. I ...
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2 votes
1 answer
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What are the advantages of a patch panel at home?

I am installing a patch panel and a switch at home. I have been reading about patch panels and I honestly can't see a good enough reason to go to the trouble. Yes it makes wiring a bit neater and ...
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1 vote
2 answers
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32 ft usb 3 cable power not suficient

I am trying to power an ipad using a 32 ft active usb cable as seen here. The issue is the power at the end of the run just isn't sufficient to keep the ipad charging (4.7v). I have done some research ...
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1 vote
1 answer
59 views

Stopping someone accessing local network by physically cut / splicing into structured cabling

When visiting another company i recently saw a setup where a company had 2 offices one on the 3rd floor and one on the 5th floor in the same block. To link the 2 offices (i guess so that they where ...
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1 vote
2 answers
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Inside compound / building cabling for fiber

I have a cabling challenge: we live in a compound that has a cabling room [room] to where all telecom infrastructure (copper and fiber services) arrive. That [room] is ~300 metres to our home [home]. ...
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-1 votes
2 answers
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Do long gigabit (CAT6) cables easily break? [closed]

I had this 30m gigabit cable which registered as a gigabit connection via my router. I noticed recently that it's now a 100 mbps connection. I tried short gigabit cables for testing and they all ...
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Home structured cabling - which cables?

I've recently purchased a 25U rack with some networking for my home. I'm about to order some Cat6, but I wanted to ask a few questions: I noticed that some people have video cabling in their homes. ...
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2 answers
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Modular PSU Connecting Cables

I bought strike-x 1100W PSU to use it with a quad socket opteron server. The problem is the server needs three 8 pin EPS connectors while the PSU comes with 2. Since its modular can i add another ...
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3 votes
1 answer
5k views

Differences in RJ-45 plugs & keystone jacks for CAT5, CAT5e, CAT 6, CAT6a & CAT7 compliance?

I've read detailed insights on differences in the CAT Cabling. What is the difference between various cable types like Cat 5, Cat 5e and Cat 6? What is the difference between Cat 6 and Cat 6e ...
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12 votes
3 answers
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What is the logic behind the pin diagram of Ethernet cables?

Is there a reason why the pin diagram of an RJ-45 looks like this? I understand that the orange pair is used for Tx and the green pair for Rx. Why is it that the orange pair are kept together while ...
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0 votes
1 answer
628 views

Why can't a single Ethernet cable carry 2 independent connection? [duplicate]

A Ethernet cable has 4 pairs of data lines. In normal conditions only two pairs are used, one as a Tx pair and another as Rx pair. So two pairs are left unused. Is it possible to make use of these 2 ...
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0 votes
1 answer
682 views

Moving the ADSL modem: Best way of extending the cabling

I have had my phone company bring a direct cable from their FTTN switches in the basement to my living room. The cable they have used is a typical Cat5e. The company's modem has a RJ11 connector ...
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0 votes
1 answer
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RJ45 connector crimping... Does it really make a difference as long as the cabling is "straight"?

Yes I am aware that there are standards on how to crimp a RJ45 connector. But my question is... does it really make a difference as long as both ends have the same color coding? Technically, it ...
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1 answer
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How many Ethernet Cable Drops per Room [closed]

If you put new ethernet cables into a building, and you know that there will be N people working in a room. Each person has one PC and one VoIP telephone. How many Ethernet cable drops would you put ...
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4 votes
1 answer
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Very strange networking issue

Sorry for the vague title, but I can't really describe it more succinctly. A friend of mine (who is also an electrician) put in some data ports throughout my house - one in the lounge, one in the ...
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1 vote
1 answer
513 views

Why did a ethernet connection work despite wrong wiring (3 out of 4 wires were correct)?

I've got a bit of a tricky question (or more like curious problem), I wonder why a network connection with wrong wiring actually worked: We needed a new network cable from a consumer-grade ...
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2 votes
3 answers
28k views

straight through cable or crossover cable between router and pc?

When I studied for the CCNA, I learned which devices should be connected using a straight through cable and which using a crossover cable. For example take this explanation for question one from a ...
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12 votes
1 answer
31k views

will any usb extension cord work with usb3? [duplicate]

I know that with 1gbit ethernet 100mbit ethernet cables won't work. You have to use cables designed for 1gbit. What about with USB3? If I have a ten year old USB extension cable (ie. one that was ...
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Why do hubs and switches receive on pins 1 and 2 and transmit data through pins 3 and 6 of their cable?

Is there any reason they couldn't have been made to use the same pins as NICs and routers for transmitting and receiving? I had trouble finding any information about this through Google, so I hope you ...
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1 answer
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Cat5E UTP transmission speed

As I have understood Cat5E FTP (STP) cables support up to 1000mbps transmission rate. But I have seen them in stores that describe them of being capable of only 155mbps trx. Do both kinds exist? Or ...
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0 votes
2 answers
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Large amount of packet loss with new network setup - cables or switches ?

I'm struggling after making some network changes to my home - I have a large amount of packet loss in the new setup from hosts on the ground floor and 1st floor to hosts on the internet. I recently ...
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3 votes
1 answer
6k views

Only 100mbps on cat. 6 cable?

I moved to a FTTH offer and now my local network is the bottleneck. 6 months ago, an electrician pulled a cable between the box and my office (less than 64 ft). On the cable it's written it's cat 6. ...
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2 answers
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PC connecting on the middle of ethernet cable

I have a 4-5 meter long UTP cable from my router to a wall socket (socket A) which works fine. Original setup: 4-5 meter cable Router ------------------- Socket A The ...
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16 votes
6 answers
84k views

Wrong order in CAT5 cabling -- does it matter?

I've got in-wall CAT5 wiring in my house. The wall sockets were done by an electrician and the requirement was straight-through T-568B, but I think he got it wrong. When I use a cheap cable tester, I ...
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4 votes
3 answers
3k views

Is there a difference between LAN cable connecting two PCs and one connecting a PC to a router?

I went to a computer store to buy a LAN(Ethernet) cable and they asked me whether I want to connect two PCs or a PC to a router. I used to do both using same cable and it worked for me till I lost the ...
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UTP Patch box for on a desk

I want some UTP cabling from a cabinet terminated on a desk, much like a patch panel in a 19" rack. But since it is on a desk, and no 19" rack is available there, I was wondering if there were ...
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