Questions tagged [cable]

The questions tagged that way are for the physical aspect of the cable, like length limitation, physical properties, tubing, installation, etc..

Networking cables are networking hardware used to connect one network device to other network devices or to connect two or more computers to share printers, scanners etc. Different types of network cables, such as coaxial cable, optical fiber cable, and twisted pair cables, are used depending on the network's physical layer, topology, and size. The devices can be separated by a few meters (e.g. via Ethernet) or nearly unlimited distances (e.g. via the interconnections of the Internet).

There are several technologies used for network connections. Patch cables are used for short distances in offices and wiring closets. Electrical connections using twisted pair or coaxial cable are used within a building. Optical fiber cable is used for long distances or for applications requiring high bandwidth or electrical isolation. Many installations use structured cabling practices to improve reliability and maintainability. In some home and industrial applications power lines are used as network cabling.

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BT socket Device over Structured Cabling

Essentially I have a Credit Card machine which is connected to a phone line via standard BT Socket. So basically, the port of the wall has a balun plugged in which takes the RJ45 outlet on the wall to BT, so I can plug the device in. This works…
PnP
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How to introduce and detect errors in Twisted Pair cables

I am taught that Twisted Pair cables are twisted to cancel interference. Now, I have a CAT-5e crossed over cable of approximately 2 M in length. I removed the cable's cover and untwisted the wires. Still I can see no difference in performance of my…
DDC
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shielded cat 6 cable

I am installing shielded cat6 cable for a building and i noticed that the green and blue pairs in the cable are thicker than the orange and brown pairs. I tried to install a cat6 rj45 but the pairs that where thicker did not fit. Is there a specific…
Tyler
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Network testing tool cat6 cables

I have been trying to crimp cat6+ cables at home and been having issues. some would work fine at gig others would only go to 100mb. Is there a reasonable tester out there for verifying a cable run will work @ 1gb? Cable tester I was looking at the…
Kendrick
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Cross cable auto route back if NIC is down?

UPDATE: I just clarified with my friend, he actually meant, the traffic will be passed through from the LAN to WAN port, it's specific to device, in our case it's the Symantec Web Gateway Appliance. Now it's that true? Original: If a cross cable is…
faulty
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Are there corner connectors for rj45?

I cant find connectors or cables that have a turn at their end of the connector. (90 degrees) This might be trivial to some. Do they exist at all? Edit: I draw a picture for this
Odys
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Wiring up RJ45 plugs on a basic network extension

I'm trying to wire up a network in an outbuilding. Unfortunately the engineers have left me bar wires so I need to add plugs and sockets. I have a 1gbps socket in the outbuilding that connects to the main network. From here I have a wire that goes…
Alex
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How can I troubleshoot APIPA (169.254.x.x) in physical network cabling?

all: We have just started using an existing Cat5e cable to run 100Base-T to a new office, but unfortunately, machines in the new office see link but receive an APIPA address (169.254.x.x). I brought the same computer into the network closet and…
mrisher
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Cisco 2516 Console access via RJ45 port?

I have just taken delivery of a basic Cisco lab and I would like to check the routers and switches etc. are in 'working' condition before I start playing around with them. The first hurdle is probably the most obvious - I don't know how to get…
dannymcc
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Using 110 Blocks and Cross Connects for Data connectivity?

I recently started a new position and upon investigation it appears all data drops from the floor first gets punched down on a 110 block, cross connected to another 110 block and then connects to a patch panel. I was horrified and surprised that…
Frank Owen
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Is there a way to measure the speed after changing over from CAT 5/ CAT 5e to CAT6?

We have recently done a change in our network by using CAT 6 cabling. Now I would like to measure the speed difference when I use Cat 5 or Cat5 e and Cat 6. Is there a way to find out the same?
user45774
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hybrid cable for QSFP to CX4 convertion

here is a hybrid cable for QSFP to CX4. Will this fit SFP+ ports? Deeply confused by standards and struck in a situation with wrong hardware selection!Personally have not seen the ports/hardware and hence the obviously stupid question! thanks for…
JMS77
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i2c cable for 3ware 9650se and SuperChassis 846A-R1200B

What's the appropriate cable to support i2c (red LED drive indicator, failure) with this combination and what's the best way to order it? I see 3ware supports 846TQ but not 846A from…
DavidM
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NIC status stays at 'Network Cable Unplugged' although cable is present

I'm having a problem with a couple 10GB NICs, one in particular in Windows 7 x64 that always thinks the cable is missing. The drivers for the NIC are current, downloaded from Intel- it's settings are defaults, although I did set an IP address once…
NginUS
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Maximum length of a USB cable

Is there a maximum length that a USB cable can be? I want to know if there is an upper limit to its length before it becomes unreliable or useless. If there was also a way to get around this max limit that would be helpful too.
Eduardo Molteni
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