Questions tagged [cable]
The questions tagged that way are for the physical aspect of the cable, like length limitation, physical properties, tubing, installation, etc..
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Looking for a software alternatives to a Fluke Meter
I have cat5 ports through out the office that seem to not work 100%. I wanted to know if there is a software alternative to the $1000 Fluke Meters, that I can do the same thing with. Maybe something I ...
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Cable Management
I was given the task of (re)organizing cables in one of our racks, and I have never done this before. What system/equipment do you use to organize your cables?
The rack I have is 23" and has 19" ...
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3
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Which cables are "active" in the UTP cable
I believe there are 4 cables inside the UTP cable that are "active" for data, the rest might be for activity and other stuff. I need to know which colors represent the data transfer from an UTP ?
Or ...
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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 ...
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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 ...
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Looking for this special RJ45 modular connector so I can terminate my own cables
We're doing a rewiring project at my work (server room is a mess of cables) and we've decided to go the route of cutting each cable to length and terminating them ourselves. In the past, I've used ...
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Industry Standards for Network Infrastructure Labeling
Are there any current industry standards IEEE, ISO, ANSI.... available that state how a buildings physical infrastructure should be labeled at the rack and jack and how the documentation should be ...
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Structured Cabling Server Racks
We have the opportunity next week to rewire five server racks which is currently in a real mess. Each rack currently has a switch installed up top with lots of cables hanging around.
We are thinking ...
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Acquiring location - need cable map/toning/testing done in house...tools needed?
I was going to ask "best approach?" but I figured it would be closed.
I know how to tone/test a cable...but I'm looking for tools, ideas, approaches that will make the following project manageable ...
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How to decide cross or straight cable
I know that you have to connect same devices with cross cable and differents with straight. Although, that's the common idea, in Cisco Packet Tracer you have to connect a PC and a router with cross ...
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What is the easiest way to attach sata cables to the backplane of a 1U super micro case?
It seems that the raid controller breakout cable thats designed for the backplane makes its incredibly difficult to cable it. The right angle bend sata cables need to bend down, making it very ...
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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 ...
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How do I label the network ports in our office?
We have a new office that was punched down with Ethernet in every office and every cubicle. The electrician didn't mark the ports on the patch panel or the wall ports, so I don't know where say port 1 ...
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SFP+ twinax cable compatibility
How compatible are twinax SFP+ cables when used with different hardware vendors' equipment? E.g. are Cisco SFP+ cables fine between an Arista switch and a Solarflare card? How about an Amphenol cable ...
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Managed Switch console cable?
As per a few other SF questions; I have recently purchased a D-link managed switch. It's a DES-3550.
It has a serial port on the front for console access and according to the manual this uses a ...
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Moving server room to another part of the building
This question is a bit different than the typical we are moving our server room to an off site location or we are moving the whole office to a new building.
Management wants to add some more office ...
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Do you really need cable management for a cabinet with just switches and patch panels?
We are about to start wiring out a building expansion and our vendor has laid out the racks in the following configuration:
Option 1
1U Fiber patch panel
2U Cable Manager
2U 48 port Patch Panel
2U ...
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What else do I get with Cat 6 beyond future proofing my wiring?
We are about to put in the wiring in an expansion of our office building and the vendor is proposing we use Cat 6 cabling because it is "faster." Gigabit works fine over Cat 5e which is what our ...
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replacing an ethernet backbone with fibre optic
I live and work in a building that is nearly 20 years old. My Internet connection is in the cellar along with my servers and has a nominal rating of 100 MBit. I have a gigabit switch in the cellar ...
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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?
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How to remove a stuck wiring Snake?
I've managed to get a Snake stuck in ribbed conduit. I managed to get about 15 feet of the snake in the tube before it stopped advancing and now I can't get it out.
How can I remove it without ...
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difference between noise and interference? [closed]
does anyone know the diffrece between noise and interference ?
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stp vs utp whats the exact reason for using stp
the wiki article says that twisting the wires protects them from external electromagnetic interference. But then why would you need to go for shielded twisted pair wiring ? Anyway the twist in the ...
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T1 versus Cable Modem
We've been using T1's for years and never changed the connection to a faster Cable Modem. I am concerned about support, return to service. I cannot find in legalese Cable vs T1's FCC Regulations SLA'...
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is it possible to direct connect a client and server with 10GBASE CX4 copper cables?
Server has two 10GBASE-CX4 ports.
client has 10GBASE CX4 HBA.
can theybe directly connected with a CX4 cable without the need for a switch? like SAS Infiband connectors?
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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 ...
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please demystify the 10Gb ethernet interfaces, cables
this really is a Dell question but tempted to ask the experts @ serverfault.
choosen a Dell powerconnect 8024 10GbE switch. per the spec sheet this has 10GbaseT ports.
"24x 10GBASE-T (10Gb/1Gb/100Mb)...
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How to correctly run cables on servers in a data center?
I've read about a few key points, e.g. run all ethernet cables on the right side, all power on the left side, but if possible I'd like to know what you guys do from experience? For example, how do you ...
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Link mode on unmanaged gigabit switches
I have two RJ45 sockets connected by an inaccessible unknown-category twisted pair cable. I plug two unmanaged gigabit switches into the sockets using Cat6 cables, and they negotiate a 100Mbps link. I ...
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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 http://kb.lsi.com/...
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Best cat6 patch panels? Is price really a factor?
I can go down to my local graybar right now and purchase some AllenTel 48 Port Cat 6 Patch panels I need (part number AT66-PNL-48). They are $275 each. That seems a bit high considering I've seen ...
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How to build a Software-Network-Tester?
The company where I work is building special twisted pair network cables. Those cables need to be tested for function and performance (100/1000 Base-T). Since we only produce small batches of those ...
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Flat 8-conductor cables for a serial console. What are they called?
I'm looking for a specific kind of Ethernet 8-conductor data cable. I am having trouble finding them online (at CDW, Newegg) because I can't always come up with the right search terms.
A search for "...
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Dedicated Pipe or Cable Provider
Right now I'm in a position to go with a dedicated 5up/5down pipe from our ISP or go with Time Warner Cable for a 50up/5down connection.
Can somebody shine some light into what other things I should ...
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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 ...
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Groupings for Network Cable Colors
I noticed a thread Network cable color conventions?
that talked about what types of colors to use for cabling in server rooms and closets. I thought that if there was a general consensus as to the ...
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Network cables - make them or buy them
First of all, I must say I've never had a problems with making cables by myself, last years stopped using cable testers just because they always say the cable I've made is ok.
But I see there's a lot ...
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When I plug in a network patch cable to a test notebook what would cause it to not see the link?
I plugged in my notebook via cat5e patch cable to a terminated jack (we had some consultants do the runs), I get no signal not even an indication that it is connected but has no DHCP. I try another ...
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Trouble with SFP cables for a 10 Gb connection
I have two machines, each with a 10 Gb adapter, directly connected with an SFP cable. I purchased three SFP cables that look exactly alike (physically and specs), but only one works. I'm having ...
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The best cable organizing solution for the servers on the rails? [closed]
I'm looking for the best cable organizing solution for the servers installed on the rails inside a rack as well as for the equipment on the rollout carts.
I believe there should be some foldable ...
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UTP cable maximum length
When I connect ten computers over a 100 meters (328ft) UTP Cat5, is the signal loss so large that it will affect my network performance? These computers perform simple office tasks, and the 100m utp ...
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Why straight-through ethernet cables?
I was explaining the difference between straight and crossover cables to my friend, and began wondering why on earth the early designers thought it was a good idea to use two different cable types?
...
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Network wiring template for Visio
Anyone come across a good template/symbol pack for Visio for doing network wiring, patching, switch topologies, etc.? Everything in Visio for networking is 3D, and isn't really conducive to cabling.
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Roughly cutting Fibre Cables
I recently asked a question about which type of Fibre optic cable to use for my installation. We have now found a cable type and supplier and I'm about to order the cable (OM3, Tight Buffered, 12 Core)...
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Effecient organization of spare cables and hardware
As many of you also likely do, I have a growing collection of cables, hardware, and spare parts (screws, connectors, etc.). I'm looking to find a good system of organization so that everything isn't a ...
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Using pre-made patch cables on a punch down block?
I need to add a 24 port switch to my wiring closet. In the (distant) past, I usually just punched each port of the switch to a 110 block on the wall (using hand-made cables), and cross connect ...
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Why do cat5 cables sometimes have the fluffy fiber bit in them?
Why do cat5 cables sometimes have the fluffy fiber bit in them?
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Creating a Network link between 2 buildings
My company needs to create a network link between two buildings.
Currently we have a cat5e network in one building and would like to connect some computers(about 15) in our second building to the ...
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Cabling: What to keep in stock?
I have worked a few different places, each one with a different solution, so I would like to hear your suggestions and ideas.
I am looking at a situation with multiple server-rooms. We have a mixture ...
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Fibre Optic Cabling - Where to start?
I'm a sysadmin/developer that works for a small IT company. We are having a new office building built, and we have a limited time window in which to put in the core infrastructure network cabling that ...