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0
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1answer
13 views

How to connect a Juniper EX4500 to netapp X1107A

What is the best and not expensive way to connect a Juniper EX4500 to a X1107A Chelsio PCI Netapp card? Will these do (10GBASE-SR) for both end? and then connect with fiber cable? How important is it ...
1
vote
1answer
35 views

How to Connect a Core Switch with an Edge/Client Switch using SFP+ Ports

I am not sure if this is the correct site to post this question and I am more a software type of guy that needs to get started with Networking, so please bear with me if this sounds stupid... Having ...
1
vote
1answer
1k views

Organizing cabling from patch panel to switches

The cabling between our patch panel and switches isn't a complete nightmare (like this), but is far from well organized. As we add new wall jacks, or office moves happen, cables get moved on the patch ...
6
votes
2answers
973 views

Is it possible to detect rx+ rx- tx+ tx- wires with multimeter?

Is it possible to detect rx+ rx- tx+ tx- wires of an ethernet cable having only a part of cable with multimeter or somehow else? I mean the situation when you have just one side of the ethernet ...
1
vote
2answers
311 views

Are all console cables pinned the same?

My workplace is getting new HP A5500 Series switches, and they include a console cable - a DB-9 Female to RJ-45 Male. I know we talked about them in college, but never actually seen one. I've heard of ...
2
votes
1answer
50 views

Can unjacketed cable handle gigabit speeds?

Looking at taking over management of an old network that was done in 2004. Surprisingly, for the time, it is category 6 cable. About 200 ports in each of 5 IDFs, all running PoE. But I'm worried the ...
0
votes
1answer
23 views

Dell cable M246M vs generic mini sas cable

Is there any difference beyond brand between a Dell M246M cable and a generic mini sas-8087 cable? Is it just branding, quality control? Or is there some difference in the actual cables or connectors? ...
3
votes
3answers
13k views

How to test cat5/cat6 cable runs, using software-only, or simple tools?

Are there any utilities or simple tools or techniques to easily test a CAT5 cable, to see how well was it installed? Cat5 is often installed by amateurs, but has been installed and "working" for ...
2
votes
4answers
4k views

What am I doing wrong with this cat 6 patch panel wiring?

top number is transmitter bottom number is remote terminator 12345678 36145278 is this because I could be mixing T568A and T568B wiring? how do I know if my patch cord is A or B? Do I just look at ...
-3
votes
1answer
144 views

HP ProLiant DL180 Gen9 modding/cabling [closed]

I bought a HP ProLiant DL180 Gen9 server in 12LFF drives configuration. Now I'd like to put two additional 2.5" SATA drives inside the case to serve as system drives. As there isn't a default spot ...
7
votes
3answers
9k views

How to test/debug bad network wiring?

I recently bought a place already wired with Cat 5E (8 ports, leading to a central closet). However attempting to get link, nothing works. On closer examination, it was obvious that the ends in the ...
1
vote
0answers
68 views

Can Cat6A connector fit to normal gigabit network switch?

Cat 6A cable is thicker than Cat6 cable. For a Cat6 cable and connector, we can plug into any network switch that has RJ45 connector even a 100Mbps network switch. Just wonder if I use Cat6A cable ...
0
votes
1answer
36 views

What kind of breakout cables do I need for this rackmount setup? [closed]

I am going to be building out a rack and I would like to re-use all the existing hardware for my NAS device and just put it in a rackmount case. I currently am running FreeNAS inside a Silverstone ...
5
votes
3answers
3k views

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 ...
11
votes
5answers
38k views

Cat 6e vs Cat 6a

From what I can understand, Cat 6e does not actually exist but a number of manufacturers are selling some cable labeled as Cat 6e. Some sources say that Cat 6e is just Cat 6a but the manufacturers ...
0
votes
0answers
87 views

Ethernet cable only works in laptop, not switch

I have installed a new ethernet cable and for some reason it works just fine when connecting a laptop to it, but when plugging it into the switch at that end, no connection is established. Tried with ...
10
votes
9answers
35k views

How to use a Tone Generator to trace a network cable

We have a tone generator kit for tracing network cables, but I am having trouble using it correctly. The tone generator end plugs into the network cable I am trying to trace, and then I assume I ...
12
votes
4answers
1k views

Why is CAT rating not applied to switches?

I see patch panels all come rated as CAT5e, or CAT6 (and so on). I understand the difference between CAT5e and CAT6 cables, more stringent interference shielding, etc. What I don't understand is why ...
1
vote
1answer
101 views

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 ...
0
votes
0answers
23 views

Structured cabling, MDF to clients

Hi i am having trouble finding a standard on structured cabling I'm currently managing a school with two building having 3 floors each, the thing is currently there are switches scattered around the ...
0
votes
0answers
55 views

Is SAS 2.1 compliance really required to use an active SFF8088-SFF8088 cable?

RAID card: LSI MegaRAID 9286CV-8e RAID chasis: Norco DS-12E using an LSISAS2x36/28 expander. Currently the chasis and card are very close together but I need to move them pretty far apart. I have ...
4
votes
6answers
2k views

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 ...
1
vote
8answers
29k views

Why would cat6 connectors not work with cat5e patch cable?

I had a naff batch of cat5 connectors (the latching mechanism didn't work) so decided to order in some cat6 connectors in preparation for the inevitable upgrade. My existing reel of for making patch ...
3
votes
1answer
482 views

Using Stranded vs. Solid CAT5 in a cable tray

I'm going to be installing a switch and 40 workstations/printers in a building. All the rooms have raised floors with cable trays running in various grids and there are cable trays going between the ...
-4
votes
1answer
24 views

Connecting two Domain controller [closed]

SIr/madam, I am with learner license in networking 2008 window server,.what type of cable should i use to connect two domain controllers through a hub or a switch. Thank you.
-1
votes
1answer
189 views

What is the most proper way of wiring RJ45 for Cat6/LAN?

I currently know of three different wiring patterns for RJ45: T568A, T568B, and USOC. Simply put: Which is the best method for creating a Cat6 cable? From my research, it seems like I should use ...
4
votes
4answers
855 views

Converting an Ethernet Coupler to a Crossover Adapter

I want to add a crossover to my network toolbox. Aside from an actual an actual crossover cable, I like the idea of an adapter (figure 1). There are crossover adapters available online, but I’m ...
10
votes
4answers
10k views

10GbE sfp+ cross over cable required? Is there such a thing?

To preface, this is my first experience with 10GbE networking and I have encountered an issue which my research does not seem to locate a solution for... I have two servers (older DL580G5 and ...
-1
votes
2answers
338 views

Lightning/surge risk of Ethernet cable run inside an exterior wall [closed]

In a previous question, I had planned a Cat6 (Ethernet) cable run outside a home, adjacent to a coax run. I was advised against it, and I'm interested in taking that advice. Now I'm considering ...
0
votes
0answers
56 views

Physical stats of cable modems

I am interested in what physical stats are available for cable modems and what they say about that modem. I can think of the that sound important to me: The ability to cope with strong or weak ...
2
votes
3answers
159 views

Long cat5e cable

Cabling contractors put wires according to plan however I think the distance is longer than 100 meters as I cannot see devices connected on another end. When the cat5e cable is longer than 100 meters, ...
9
votes
1answer
2k views

Proper method for connecting multiple non-stackable network switches?

I deal with many clients in warehousing and industrial applications who have IT staff or local consultants. Many of these sites are still using a 10/100 Megabit switching backbone... I've managed to ...
3
votes
1answer
149 views

SFF-8087 cable and connector variations causing fault?

I recently bought a set of 6 cables to connect my LSI MegaRAID card to my Norco-4224 backplane. The connector on both ends is SFF-8087. However, when they arrived, the disks would not be detected. ...
0
votes
2answers
876 views

NVIDIA Tesla K20C in Dell PowerEdge R720xd — power cables

I am trying to put an NVIDIA Tesla K20C into a Dell PowerEdge R720xd. I'm having a bit of trouble understanding the power requirements of the card. First, here is a picture of two pages of the ...
8
votes
8answers
1k views

Stripping cat5 cable which doesn't have a ripcord

I need to patch a couple of cables. Normally I'd work with cat5 cable which contains a ripcord. The ripcord is used to pull outer insulation off without accidentally cutting the individual strands of ...
14
votes
2answers
6k views

Tracing a network cable that is already connected to the network

Some remodeling was done while I was away from work, and I'm left with several unlabeled cat5 cables that are terminated with RJ45 keystone modules. On the other end, all of the cables are terminated ...
0
votes
2answers
196 views

Odd Network Cable Color Coding Sequence

I just got hired into a new company where no IT has been before. My first task was to identify the possible problems. This is what I first saw, when checking on the cables connected to the switch, I ...
1
vote
1answer
102 views

Infiniband cable

What is the difference between an active and a passive cable? What is the difference between QSFP and QSFP+? Given the choice between copper and fiber, for a very short distance like 3 feet max, is ...
3
votes
1answer
310 views

Send network signal over a very long distance of copper

I have an issue were I need to interconnect 2 switches together. We've estimated that they are 1400 meters away (cabling distance). I wanted to use a media converter to extend the signal on OS1 ...
2
votes
1answer
690 views

Cabling for SAS drives in a Dell T420 with Perc H710

After having purchased a Dell T420 with SATA drives and without RAID, and discovering this was a mistake for performance reasons, I'm obtaining a Perc H710 PCI card and SAS drives. Now I'm stuck with ...
1
vote
2answers
2k views

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 ...
2
votes
2answers
574 views

Wall jacks to patch panel?

OK, I'm by no means a seasoned networking pro and I had no say so in the design of our current server room which is in dire need of an extreme makeover. Basically, in our server room we have 12 wall ...
3
votes
5answers
838 views

Cutting patch cables to length

I'm rewiring a rack, and would like to have the cabling cut to length to make things as tidy as possible. The suppliers of Cat5e/Cat6 cable I've found only really supply bulk cable in multiples of ...
4
votes
2answers
213 views

Find a UTP cable in a live network

Is there a way to find a UTP cable in a live network, without damaging the network? The problem is we have some cables laying in the server-room from god knows where. I want to find the other end of ...
1
vote
0answers
65 views

USB having periodic connection issues over <15 foot cable run - EMI or?

I hope this is an appropriate topic for this stack exchange. I have a cable run just shy of 15 feet that connects a few monitors (3) and usb 3.0 devices (a USB 3.0 hub) to one of the servers on the ...
3
votes
5answers
16k views

New office cabling: should we use CAT7 or CAT6a? [closed]

We are going to do the cabling in our new office building and we are thinking to lay down 10Gbit cables since we use HP switches that come with 10Gbit ethernet ports. We will also lay down few fiber ...
3
votes
5answers
8k views

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 ...
-6
votes
1answer
480 views

Why is RJ45 DB9 console cable still used, when all the latest computer do not have serial port? [closed]

I still see quite often that RJ45 DB9 console cable is attached with some devices, when I do not even have a computer with old serial port. So I need to either get the USB - DB9 adapter or USB - ...
4
votes
6answers
11k views

Effect of heat on CAT5 Ethernet Cabling

I am wondering what the heat rating is on standard CAT5 cabling or where I can check the heat rating of my cabling by using the information inscribed on the cabling? In my specific situation, I am ...
-1
votes
2answers
360 views

Mini-SAS Connector Issue

allow me to apologize in advance, because I am horribly uneducated in this realm, yet I find myself with this problem: My company hired ProMax to setup all of our networking in our office. One of the ...