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Questions tagged [cabling]

For questions about network cable installations used in a physical building or as used in a computer network topology. This tag is suitable when your question is about network cable installations, that are used in buildings to distribution frames and data centers or long distance cabling that is ...

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2answers
70 views

Practical limits of shielded Ethernet cable

If I run S/FTP Ethernet cable ran next to 120V conductors (inside 3/4" conduit) for about 70 ft. is there chance that I'll have a usable data connection? I'm fully aware that this is a terrible way to ...
17
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6answers
3k views

What is this thread-like material on this Cat6 U/UTP cable?

Does anyone know what this thread-like material to the right on the picture is? Does it have anything to do with grounding? It is a Cat6 U/UTP cable.
2
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2answers
87 views

Effect of large amount of bare ethernet pairs on network performance

I have a client who has been experiencing a significant amount of performance issues in regards to their telemarketing floor. On my initial assessment, I found that where the ethernet is punched down, ...
0
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0answers
43 views

Moving a patch panel from a wall to a rack mount

The network I'm upgrading has a patch panel mounted on the wall. I'd like to take it off the wall, set up a rack, and move the patch panel to the rack. Are there things I should be aware of before I ...
1
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1answer
52 views

How to tell if network cable is LSZH

I just bought a 305 meter Cat 6a S/FTP LSZH Solid network cable. The cable I received is a Deltaco TP-53 cable, but I cannot see anywhere that this cable is really LSZH (Low Smoke Zero Halogen). I ...
0
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1answer
55 views

How southern cross cable can transmit IP/ Ethernet signals keeping in mind the physical limitation of Ethernet cables?

The Optical fibre can transmit/receive any ethernet frames or packets faithfully for 5kms. However, the cables laid in the southern cross i.e. under the sea beds must be several miles long. The ...
0
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1answer
57 views

Can bad cabling affect the overall network?

TLDR: Can a handful of problematic lines negatively impact the performance of the network as a whole? ... or would any problems stop once it reaches the switch? Longer Version (background): A ...
3
votes
1answer
167 views

To shield between patch panel and switch or not?

All network cables run from the outlets to the server room. They run next to power cables so it was decided to shield them. In the server room, they are going to be connected to a patch panel which ...
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3answers
63 views

Custom CAT6A cable not reaching 1000mpbs

I purchased this CAT6A cable: https://www.amazon.co.uk/gp/product/B01M0VB4YD/ref=oh_aui_detailpage_o06_s00?ie=UTF8&psc=1 and did some network cables by myself in various lengths ranging from 1 ...
-1
votes
1answer
89 views

How is this Patch Panel even working [closed]

I recently took a Jr. Developer position at a small company. I've been asked to solve a network issue at one of our remote warehouses (I'm the interim IT / Network guy). I did a little bit of Panduit ...
3
votes
2answers
141 views

How close can Ethernet cables be to power line if in parallel?

How close can unshielded CAT 5e/6/6a cables be in parallel to 110V power lines in rooms of common residential/commercial buildings before interference becomes an issue? If proximity between the two ...
2
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2answers
55 views

Intermittently loose communication with upstream managed switch

I have a network for a small company that has been running without an issue for a few years. We have Cisco IP phones on VLAN 100 and computers on VLAN 1. The VLANS are auto assigned by the Cisco ...
3
votes
1answer
576 views

Best Practice for Connecting 3 Switches to Router

I am wondering the best way to connect 3 switches to a router in a server rack. The router is a Cisco RV320 (Dual Gigabit with two static IPs) There is three 48-port Ubiquiti EdgeSwitches, A Datto ...
6
votes
1answer
89 views

Do low temperatures cause problems installing new optical wiring or fixing broken optical cables by splicing?

One of our supplier reported big problems splicing (using this) a broken outdoor optical fiber cable when temperatures around or little bellow freezing point. They refuse to install new optical fiber ...
2
votes
2answers
60 views

110 Block Frames and TIA-606-B

I have a large industrial work site with numerous Switch- and Control-Rooms containing horizontal and vertical patch panels, switches, etc. There has historically been no formal identification or ...
0
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0answers
51 views

Cat6 and Cat6a Patch Cords - Is UL 3992 Verification a Real Buying Factor?

I've seen some hype about UL's new verification for networking patch cords. Is this simply a solution to a problem that doesn't exist or is this something tangible to consider when buying patch cords?...
1
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1answer
39 views

What is the purpose of twinax cables and how does it differ from straight through and cross over cables for the connection of unlike and like devices?

What is the purpose of Twinax cables and how does it differ from straight through and cross over cables for the connection of unlike and like devices? I want to know whether there is any difference ...
1
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1answer
219 views

Fibre vs Copper short Distance

I am thinking of running Fibre optic from one room to a Nearby ONT/Router, I currently have about 15-20 meters of Cat 6, With a Gigabit UFB internet plan. With a short distance of around 20 meters ...
0
votes
2answers
53 views

Cat 5e wiring Type A incompatibility with Type B

I am not an engineer but I’m having problems with my small network in my business. I have 11 computers after 13 yrs am having major problems. My network keeps shutting down, and my dental software on ...
4
votes
3answers
141 views

Where are UTP cable speeds defined for Ethernet?

I have consulted several Network+ exam preparation books, Network+ practice exam questions, the IEEE 802.3-2015 standard, and several older TIA-568 standards. However, I'm having trouble finding a ...
1
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1answer
75 views

Connecting two PCs together via External Ethernet cards (T568A or T568B?)

Hi, I need some expert networking advise here. I have to connect two different PC together via a unique ethernet path. Please see attach picture. I however cannot go thru a switch or a hub. **my ...
0
votes
1answer
53 views

Fiber Optic between two residential buildings [closed]

I'm not sure if this is the right forum, but thanks for your consdieration. Also, I apologize for the speculative nature of the question, I'm looking to extend internet to another building about ...
0
votes
0answers
67 views

Effects of CAT6A UTP cable being terminated with a CAT6A FTP RJ45 module

The rule of thumb is to pair the cable with the same type of termination. However, the wiring in place is CAT6A UTP and the equivalent RJ45 wall modules aren't easily available so wanted to ask if ...
3
votes
1answer
173 views

Does TIA/EIA-568 permit patch cabling totals longer than 10m?

[Light edits to emphasise versions] What are the exact requirements of TIA/EIA 568 cabling standard as regards to the length of patch/work area cables? Specifically, I see from my 2001 copy ANSI/TIA/...
1
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2answers
87 views

What classifies as crossover cable?

The definitions I've read say that crossover cable is cabling which the receive and transmit pairs are swapped around. My question is based on the fact that beyond this, I've seen some diagrams which ...
1
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2answers
62 views

Do CAT5e structure weaken Voice signal when RJ-61 termination is used?

RJ-45 & RJ-61 does have different pins termination. Straight-A, Straight-B, Cross-Over (A & B each end) for RJ-45 (Data). Paired at middle going out method meaning 4 & 5 pin + 3 & 6 ...
3
votes
2answers
141 views

Which is preferred: Pulling or 'walking' cable?

I'm running some basic lines at a factory and I have basic training on punchdowns and where I am allowed to run the cable(in this case, CAT5e/6). I need to run a maximum of about 200 feet of cable. ...
1
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3answers
1k views

Why exactly is soldering discouraged in UTP networks?

I am aware that punch-down junction boxes and other solutions are the recommended methods for continuing an UTP cable that is too short, but you are not in control of replacing (for example, solid-...
1
vote
1answer
60 views

Is it possible.. Partial Duplex: 100mb one way & 1000mb the other

I have a potential application where the vast majority of the traffic will be in one direction, and, concurrently, I have a potential alternate use for a pair of wires in the cable that would ...
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votes
3answers
110 views

What was the initial reason to design two different types of Ethernet cables cross-over and straight-through? [duplicate]

I do not understand what was the purpose behind those two cable standards. Cross-over cable and Straight-through cable What was the initial purpose that they were build for and what was the ...
2
votes
4answers
905 views

Does coaxial cable transfer data both ways?

Does coaxial cable transfer data both ways although it has 1 wire in it? How coaxial cable is different from Ethernet cables? And why does Ethernet cables have two wires for transmit and two wires ...
1
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3answers
417 views

10baseT and 10baseFX difference

What is the difference between 10baseT and 10baseFx are those types of cables or the boxes that are used to plug the cables?
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3answers
103 views

CAT3 and CAT5 in the same conduit. Cross-talk potential?

Can I run telephone cables and standard UTP CAT5/6 in the same conduit? Will it cause any interference or cross-talk?
1
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1answer
190 views

Aerial fiber to replace underground fiber optic cable

I have aerial fiber optic cable only. Can I use this cable underground because I have excess aerial cable but I have no underground cable? In short, is aerial fiber optic cable insulated enough to be ...
4
votes
3answers
4k views

The maximum length of CAT6 for intranet network?

Recently I purchased CAT6 cable with a length of 150 meter. I bought another CAT6 with a length of 148 meter. I joined both the cables using RJ45 cable coupler. I tested it using LAN TESTER, and ...
1
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1answer
297 views

Connecting two switches together over longer distance fails

I am working in a small business, but the office is quite large. For ages, everything ran over Wi-Fi here, but it's simply not reliable enough (Walls blocking signal, high latency, etc). Some days ...
1
vote
1answer
253 views

Two ethernet jacks causing each other problems? [closed]

In our new office all of our ethernet jacks are "double jacks" (two ethernet ports on one plate on the wall ), each with their own CAT6 cable wired to a series of identical dual jacks (we didn't have ...
2
votes
1answer
2k views

When is “grounding” a concern when running Cat6a cables?

I'm educating myself on how to terminate Cat 6a cables. I've seen some articles talk about "grounding" requirements because of the "shielding" in the cables. But is grounding a concern if I'm just ...
2
votes
1answer
1k views

CAT6 cable AWG23 seems too thick for plugs [closed]

I have 500 feet of what is described as Cat6 Solid STP Copper Bulk Cable (White) Here are the full specs CAT6 STP 8-Conductor, Bulk, PVC Jacket, (FTP) Shiedled AWG23, Solid-Bare Copper,(UL/ETL) ...
6
votes
3answers
1k views

Can normal CAT6 be buried? [closed]

I have the leftover from a long spool of CAT6. I'd like to run a line to my garage, which is separate from the house. Can "typical" CAT6 be directly buried, or should I buy one of the "waterproof" ...
6
votes
1answer
111 views

Is there an IEEE recognized method for splicing Category 5e or 6 cabling?

Is there an IEEE recognized method for splicing Category 5e or 6 cabling, and maintaining the expected data rates? Such as the junction box shown in the link below. https://www.lowvoltagecables.com/...
1
vote
1answer
84 views

PoE cable defective?

Need some expert advice.. So some time ago I got water damage, my PoE switch was completely flooded. Since then, I noticed that I could not rotate my cameras anymore via Blue Iris (IP Cam soft), and ...
6
votes
1answer
298 views

How to properly name TIA-606-B Cabling Subsystem 1 far end identifier for work area equipment outlets?

We are moving to TIA-606-B for labeling. I have read most of the TIA-606-B standard. Some parts I have only skimmed, while others I have studied in depth. I do not understand the rationale behind the ...
1
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1answer
129 views

Connecting a router with cat 5 cable to a cat 7 network

I have a cat 7 network but the router, switch and APs are hooked up to it using cat 5 cables. Does this reduce the advantages of a cat 7 network?
0
votes
2answers
112 views

Can squeezing an RJ11 cable affect network performance? [closed]

I have just bought one of these: Ultra High Speed ADSL Cable 5m to move my router from the hall into my living room. Before and after I installed it I did a batch of speed tests. I was getting 75-80 ...
0
votes
1answer
93 views

Will Cat6 make a difference

I have 7 rooms wired with Cat5e. I plan to attach the other end of the cables to a GigaBit switch (Netgear GS108). This leaves one port on the switch. I will attach my router to the remaining port. I ...
0
votes
1answer
244 views

Latency of AOC vs passive DAC

Long time ago I heard from friend that on really short distance using optical links makes no much sense because comparing to passive connection optical interfaces introduce another layer of hardware ...
3
votes
4answers
2k views

Why are patch panels used (instead of connecting directly to a switch)?

For example, at work, a network is made up of 10 workstations all connected to a switch through a patch panel. From my inexperienced opinion, it is extra cost that can be avoided; however, as I do ...
1
vote
1answer
42 views

Fiber Cable speed tester

How to select Fiber Cable (multi-mode or single mode). For example, if i need fiber backbone around 700 meters with 2 GB speed, how i choose, om 2, om 3 or OS 1 & Os 2. Is there any calculator or ...
2
votes
1answer
74 views

Are most Cat. 6 RJ45 plugs really Cat. 6 certified?

I've seen all sorts of RJ45 crimp plugs advertised for use with Cat. 6 cable. I know Cat. 6 has more stringent requirements on the cable than Cat. 5 or 5e. It seems like there would similarly be more ...