The cables tag has no wiki summary.
1
vote
2answers
66 views
Powervault MD circular console cable
We have two Powervault MD SAS devices, the specific model eludes me as these are remote and not accessible to me and anyone on-site doesn't have the capability to locate a service tag/serial or model ...
-1
votes
2answers
104 views
Why are serial console ports on network switches 8P8C/RJ45 sockets? [closed]
It has always seemed a bit strange to me that the console ports on networking gear are 8P8C (popularly referred to as "RJ45" even though that's not strictly applicable here) connectors and require an ...
30
votes
6answers
5k views
Why do ethernet cables have 8 wires?
This might seem a stupid question but why do Ethernet cables have 8 wires? Cat5 cables were just using 4 of the 8 wires, so only 4 are actualy 'needed'. Why not 12 or 16 wires?
-3
votes
1answer
61 views
Power Supply And Power Cable at Equinix Palo Alto? [closed]
I will be doing a server installation at the Palo Alto Equinix Data Center soon and I'm coming in from overseas so I wondering if any of you can help me out regarding power supply can power cable ...
0
votes
2answers
34 views
Cable Selection for Multiple Monitors [closed]
If you have several monitors which will all display the same information, what would be a good cable choice. The monitors might be 50 feet away from their computer, which means there will be a cable ...
4
votes
3answers
4k 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 ...
1
vote
2answers
188 views
Network testing tool cat6 cables [closed]
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 ...
4
votes
4answers
166 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 ...
0
votes
1answer
279 views
CAT5e RJ45 splitter with CAT6 network: compatibility & performance
I need to connect 2 PCs on a single RJ45 socket on the wall. The network is wired with CAT6 cables.
I have seen a few RJ45 splitters that seem to do just that, but they are all for CAT5e cables. Here ...
3
votes
4answers
249 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 ...
0
votes
1answer
154 views
How do you explain ethernet cable problems to non networking people? [closed]
We've recently been doing a large network migration in our datacenter.
We've had a few cables in this start to deliver really bad pings (in excess of 500ms on a LAN) before they could be replaced. ...
59
votes
1answer
4k views
What happens when you plug two sides of a cable to a single networking device?
What is likely to happen when you plug two ends of a network cable to a single switch/router? Will this create problems on the network, or just be ignored?
0
votes
2answers
164 views
Which SAS Cable is required for to connect SAS drive to RAID controller
I have two 2.5" SAS drives which have a SFF-8482 connector. I also have an LSI 9211-8i controller card, as well as a TYAN motherboard with a SAS controller. Both of these controllers use the SFF-8087 ...
1
vote
5answers
5k 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 ...
5
votes
2answers
299 views
Tool(s) for labeling cables with unique ID numbers
We are looking to (finally) implement a cable labeling procedure.
We already have a labler. Now we need a system to maintain unique IDs not related to anything.
I thought of getting a tally counter ...
1
vote
1answer
166 views
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
1
vote
1answer
128 views
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 ...
0
votes
1answer
121 views
Network Cable Testing Diagnostics
I've recently helped a friend wire his new office up with Ethernet cable wall sockets that all connect to a central patch panel. The issue I currently have is with testing the cable.. I receive the ...
3
votes
3answers
364 views
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" ...
0
votes
3answers
152 views
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 ...
1
vote
2answers
561 views
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 ...
1
vote
2answers
532 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 ...
11
votes
4answers
549 views
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 ...
2
votes
1answer
101 views
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 ...
1
vote
2answers
157 views
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 ...
3
votes
6answers
751 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 ...
16
votes
5answers
2k views
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 ...
1
vote
5answers
216 views
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?
6
votes
1answer
385 views
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 tub before it stopped advancing and now I can't get it out.
How can I remove it without ...
0
votes
2answers
464 views
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?
1
vote
1answer
151 views
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 ...
4
votes
2answers
2k views
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 ...
3
votes
3answers
159 views
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 ...
0
votes
1answer
260 views
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 ...
0
votes
1answer
273 views
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 ...
0
votes
4answers
415 views
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 ...
1
vote
5answers
813 views
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 ...
12
votes
15answers
902 views
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 ...
1
vote
2answers
1k views
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 ...
1
vote
3answers
1k views
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 ...
11
votes
6answers
928 views
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?
...
8
votes
6answers
1k views
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 ...
1
vote
2answers
2k views
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 ...
0
votes
2answers
243 views
What is the crappiest network build you've ever seen? [closed]
This is only about networks you have seen personaly, not heared from others or seen on pictures at the web.
Cables hanging from the ceiling lamps?
Cables going trough culverts and other tubes?
...
4
votes
0answers
5k views
What’s the best way to label cables in a data center [duplicate]
Possible Duplicate:
What is the most effective solution you used to label cables?
We're in the midst of planning for a big data center renovation at my office, which is going to result in a ...
5
votes
1answer
396 views
Planning to buy some cat5e cables. 568A or 568b?
I plan to buy about 20-30 feet of Cat5e (or 6) cables. I have 30 mbits connection. I was looking around and the ones we are considering are 568B. I was looking for quality in my cables. Is this ...
24
votes
5answers
7k views
What is the actual difference between Cat-5 and Cat-5e?
From the title, this sounds a whole lot like a repeat of this question, but it isn't, I promise. Because he wanted to know whether you could tell from looking at a cable whether it was Cat-5 or ...
23
votes
10answers
8k views
Network cable color conventions? [closed]
Are there any color conventions for network cable? I'm talking jacket color here, not the color of the individual conductors. I've seen and used mostly grey and blue which is what's usually readily ...
0
votes
2answers
695 views
Cable type for connecting two routers
What kind of cable shuold I use to connect two routers, straight or crossover?
-1
votes
5answers
118 views
Buying cables and small electronics component offshore [closed]
I am wondering whether anybody have experience with buying cables and small electronics off shore.
The site I have in mind is alibaba.com. It is similar to ebay and the quotes I'm getting seem to be ...
