Stack Exchange Network

Stack Exchange network consists of 174 Q&A communities including Stack Overflow, the largest, most trusted online community for developers to learn, share their knowledge, and build their careers.

Visit Stack Exchange

For questions about Unshielded twisted pair (UTP) cabling, where it should always be in relation to networking in general.

1
vote
1answer
83 views

What type of Cat5e cable is this?

I am a fairly new networker and today I was terminating some cable at a gas station that is being built. The network cable that had been run from the gas pumps to the wiring closet confused the crap ...
0
votes
2answers
68 views

How to avoid cable crosstalk?

I have 4 ADSL UTP cables. How much distance do I need to leave between cables to avoid crosstalk?
0
votes
1answer
16 views

Use of UTP patch cables on a STP cabled network [duplicate]

In the walls of the building there are Cat6a FTP cables. Can we use Cat6 UTP patch cables to our switches, and maintain 1Gbs speed? Or do we need to use FTP cables all the way from switch to end ...
3
votes
2answers
112 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 ...
4
votes
1answer
449 views

Why do we need a crossover cable for 1000BASE-T?

I'm doing course for CCNA and in one lecture teacher showed how to make a crossover cable for Gigabit Ethernet. But as I know Gigabit Ethernet uses all wires of twisted pair cable and each pair is ...
0
votes
2answers
46 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
111 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 ...
0
votes
0answers
56 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 ...
2
votes
2answers
133 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
vote
3answers
768 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
3answers
102 views

Are there any advantages in using optic fiber to connect a host computer to an ethernet LAN?

I saw that computer Network Interface Cards (NICs) that use fiber ports (SFP) instead of RJ-45 ports and I wonder if there would be any significant advantage in connecting the computers directly ...
10
votes
2answers
675 views

What does the naming convention for ethernet standards mean: 1000BASE-T , BASE-TX, BASE-SX, etc.? What is the meaning of the components of the name?

I understand the number in the naming convention. The number represents how many Megabits per second can the standard support. However, I do not understand the rest of the naming convention. What do "...
1
vote
3answers
349 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?
0
votes
1answer
85 views

Poor bandwidth after re-coupling an Ethernet cable

As part of an experiment I cut a Cat 5e Ethernet cable in half, stripped off a small amount of insulation on each wire and attached each pair of wires together with its own alligator clip. There are ...
2
votes
1answer
1k 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 ...
0
votes
3answers
248 views

Can I run two separate internet connections over one Cat5e cable

I have two ISP's coming into the building. One is a T1 that is going to be used for VOIP phones. The second is high speed internet connection going to be used for internet. Each office has one cat5e ...
1
vote
1answer
81 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 ...
1
vote
1answer
110 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
3answers
97 views

Is it possible to set a 3 computers LAN using just cables?

I'm absurdly new on networking, and I just want to know if it possible to set a network with 3 computers without a router, switch; just UTP CAT5 cables (or any category)
0
votes
1answer
77 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 ...
9
votes
3answers
3k views

What is the reason for T568A and T568B termination?

There are two types of pinouts for terminating twisted pair cable with a 8P8C (RJ45) connector: But why must one not simply align the wires serially, e.g: Green pair - Orange pair - Blue pair - ...
3
votes
4answers
1k 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 ...
3
votes
3answers
1k views

Difference between patch cable and UTP

I already searched for answer to this, but I have seen so many different answers to this.. Does patch cable mean all UTP Cat5e, Cat6 etc? Or is it something else? Thank you for any help.
0
votes
3answers
517 views

Does the 568A vs 568B standard affect the transmitting and receiving wires on the CAT-5 cable?

So I'm studying networking using the Head First Networking book. I was reading about CAT-5 cable and the RJ-45 connector. The book says that the green pair receives data and the orange pair transmits ...
0
votes
3answers
113 views

What is your experience using 3rd-Party 10Gig Media Converters with Cisco equipment?

We have just received a device with 10Gig BaseT ports (for copper cable with RJ45 endings) that needs to be connected to a Cisco Nexus 5548. This switch only has SFP+ ports and we're connecting them ...
1
vote
1answer
327 views

Flexibility of a UTP cable

Is there a metric/specification that shows flexibility/elasticity of a utp cable? I have to install a utp cable and it will have to go around some sharp corners. From what little experience I have ...
0
votes
4answers
13k views

Multiple POE over a single cable

I try to solve a problem using Power Over Ethernet technology to Power supply differents devices. I would like to avoid to buy new router and try to make it work without any expensive costs (if ...
4
votes
3answers
323 views

Direct-burial cable: fiber vs cat-5e/ cat6

Apologies if this isn't the right place for this question. I'm converting an out-building to a home office. The structure is approximately 175 feet from the house. We're digging a trench for a 240V ...
3
votes
1answer
328 views

Patch cable wiring/colors

I cut a cat5e patch cable to put a female end on the cable, but the colors for the male piece are: orange, orange/white, blue, blue/white, green, green/white, brown, brown/white. The patch cable ...
2
votes
5answers
3k views

Is there a difference between using a cat 6 wall jack vs using a female-to-female connector?

I am running new cat 6 cable from my router to my office so I can get my computer hardwired instead of using WiFi. When looking at what I need to get to connect the cable to a wall plate, I'm seeing 2 ...
4
votes
3answers
478 views

Why is the 100base-TX maximum distance unchanged from the original specification on better cable?

I understand that the 100base-TX Ethernet standard is from 1995, and was originally designed for older and poorer grade CAT-5 cabling than what is now commonly available. With the introduction of the ...
1
vote
4answers
215 views

Is it possible to carry POTS and gigabit ethernet over the same Cat 5e/6 cable?

I know that gigabit ethernet needs to use all four pairs of wires. The idea is that POTS is such low frequency that I believe it should be possible to separate it from the gigabit signal using a ...
0
votes
1answer
34 views

Mixed Use Four-pair Cable

My school tried to save money, so they decide to use an installed cable for phone, CCTV, and ethernet. I used two pairs for ethernet, one for phone, and one for a CCTV camera. The phone and camera ...
7
votes
4answers
188 views

Is ethernet a term describing just the protocol or the interfaces also?

Is ethernet describing the protocol and therefore cat5 cables became labelled ethernet cables because they are used for this protocol?
0
votes
2answers
150 views

Were any 1000BASE-TX commercial products released?

As a bit of background, around 2002 there were some articles predicting the success of then newly announced 1000BASE-TX (TIA‐854), as inevitably enjoying much more commercial success than 1000BASE-T (...
2
votes
2answers
955 views

Can a UTP cable use CSMA/CD?

I know that coaxial cable can use CSMA/CD but can UTP used it also? and can you guys explain it how is it done or work? thank you so much for your answer
1
vote
3answers
6k views

How to create Ethernet cables when I cannot figure out color of cat 5e cable wires?

I'm learning how to make my own Ethernet cables (to get deep understanding of Cisco for their exams), but the cables I am getting have small wires whose colors I cannot distinguish. A person in my ...
0
votes
2answers
352 views

Only 100Base-TX full-duplex over a 25m CAT 5e cable

I have a 25m CAT 5e cable and I'm trying to connect to a router. The connection obtained is always 100Base-TX full-duplex, it never reaches 1000Base-T. What can be the problem? As long as it says it's ...
2
votes
1answer
340 views

Why Do RJ45 jacks/plugs require multiple incoming and outgoing wires to work?

I Hope I'm at the right place. I am trying to figure out why RJ45 jacks and plugs require 2 incoming wires and 2 outgoing wires to work. Why is just 1 incoming and 1 outgoing not enough? IS there a ...
2
votes
5answers
551 views

Is it possible to reliably transfer data faster than 1 Gbit/s over Cat 5e cable?

Given the requirements that a standard Cat 5e cable must live up to, is it possible to transfer data over it faster than the 1 Gbit for maximum 100 meters of cable for 1000BASE-T? My old ADSL line ...
15
votes
5answers
83k views

What's the difference between an Ethernet cable and a UTP cable?

Is there such a thing as an Ethernet cable or technically no? Are they actually called UTP cables? From wikipedia UTP cables are found in many Ethernet networks and telephone systems.
0
votes
1answer
220 views

Will cutting a 50m CAT6 cable in half achieve a gigabit connection?

I have a new CAT6 cable that's 50 metres long and only performs at 100 megabit. I've tested it in a variety of gigabit ports and it never allows a gigabit connection. Is it the length that's the ...
5
votes
3answers
1k views

Ethernet Cable Orientation

I'm in an A+ course and was just working on wiring Ethernet cables. I was wondering, will an Ethernet cable function if the wires are reversed? Say instead of wiring 568B like striped orange, orange, ...
4
votes
1answer
9k views

How to repair a break in a long Cat-5e cable run

I have a long run of Cat5e which is broken at about 20' from one end. Replacing the entire cable isn't an option, as it's fairly long and is going through walls and such. Searching this on google ...
0
votes
1answer
155 views

Externally Rated - CAT Cables - how to tell

How can you tell a CAT6 cable is externally rated? It is a requirement for a project I'm working on. Many thanks, Vlad
8
votes
2answers
550 views

Multi-drop Cat5e/6 Cable?

I'm looking to install ethernet ports in a small business. There are 7-8 groups of cubicles each with 4 desks. Ideally I'd like to run a cable to each desk but if my math is correct I'm looking at ...
0
votes
5answers
205 views

Is it common for rackmountable servers to have fibroptic input and output? or is it cat 5 and you have to convert after?

If the switching hub is in the floor above the server, I've heard its best to use fibre-optic cabling to avoid interference from unrelated electrical cabling in the ceiling for lights etc... Is it ...