The telephone wiring and/or DSL from the central office is carried over a twisted pair. The interference just on audio would make untwisted unusable over the usual distances. Yes the line from the central office may/does go through many multipair cables, but each pair is twisted. I know this from my work. I have had to seperate out the pairs from from multi pair cables (25 to 300 pairs) more tha a few times.
Rob.
Rob.
Connect the switch to one of the LAN ports on your router (assuming you have a home router appliance). If the 24 port switch has an uplink port that is the one you'll use to connect it to the router. Otherwise you can use any other one. That will leave you with 24 ports which you can connect to other devices in your home.
Newer switches will support Auto-MDIX so no need for a crossover cable unless you have older gear. Anything that's GbE will support Auto-MDIX but older 10/100 does not. On devices that do not support it, there may be a port that says uplink, crossover, or something like that and you will need to adjust accordingly.
Do you really plan on connecting drops to network for just data? Many places have more than one drop per location but the jacks can be multipurpose, eg one for data and one for phone, and one or two spare for expansion or in case one of the others fails. You may want to start a new thread about your solution.
Ok, I give you this. Phones are a balanced system just like Ethernet. However you can't just use phone cord for Ethernet, the twisting is 'tuned' to the expected carry signal. Which is why those twists are generally pretty loose and on the order of only 2-5 /foot with an expected range of 30,000 feet, while the Ethernet specs mostly call for a higher count and much shorter distance.
I know DSL only makes it 12,000 to 15,000 feet (reliably) with tons of error correction and signal channels.
WoodButcher
Platinum Member
- Mar 10, 2001
- 2,158
- 0
- 76
Yes, I subscribed to keep track of it. Good reference when I need it and until now had nothing of value to add to the conversation.
+1 for the sticky...
Maetryx
Diamond Member
- Jan 18, 2001
- 4,849
- 1
- 81
I vote for sticky. I'm tackling this exact project in the next couple of days and this is going to be like my bible.
Maetryx
Diamond Member
- Jan 18, 2001
- 4,849
- 1
- 81
And as long as I'm here, this is a good article on MaximumPC about home wiring.
http://www.maximumpc.com/article/is_wiring_your_home_worth_it?page=0,1
http://www.maximumpc.com/article/is_wiring_your_home_worth_it?page=0,1
Icky-Pic does not dry out.
Icky-Pic is a water barrier, protection to help keep moisture out. it will never dry out. I have also never seen this stain as mentioned in wikipedia.
I Intall cable for qwest as a sub contractor and deal with icky-pic based cables on a daily basis.
I will give you; it is hard to get off your hands without proper cleaning agents.
Great write-up though to the OP!
Actually, most "Exchange cable" from the CO to the cross-box (the "F1" or "Underground" cable) is not twisted at all. It is shielded, bonded, and grounded at both ends, but that doesn't help for crosstalk.
Beyond that, most of the cable from the cross-box to the drop (the "F2" or "aerial" cable) is also not, as a rule, twisted. Some runs that are recognized as special may have a high count Cat3, but that is an exception, not the rule.
Some drops can be twisted, but usually aren't: They may also (or not) be shielded, but that is also usually the exception.
bruceb
Diamond Member
- Aug 20, 2004
- 8,874
- 111
- 106
That is good advice. But since we are talking low voltage cabling, PVC pipe should be ok. I would not use it for line voltage circuits or 220/440V lines. As to diameter, that depends on how many wires are to be in one conduit. You can easily get 2-3 CAT 5 / 6 and 2 RG6 coax into a 1 inch ID pipe with room to spare. But if you are running fiber, then you need to allow room for gradual bends and also room in the box so it does not get kinked.
Actually, it's Cat6a - the "a" stands for "Augmented."
For in-wall horizontal, there are special flavors of corrugated innerduct ... it looks like vacuum cleaner hose that is better for laying cable. They also have termination boxes, junctions etc.
Most fire code still requires metal conduit for the vertical runs.
Proposed addition:
In the cable section about CAT6(a),
I would like to mention the "plus shaped spacer" since some cables require channels to meet spec. I hear this referred to as the filler, but is there a better name?
I am not talking about the spacer bars and the like used on machines to make patch cables.
In the cable section about CAT6(a),
I would like to mention the "plus shaped spacer" since some cables require channels to meet spec. I hear this referred to as the filler, but is there a better name?
I am not talking about the spacer bars and the like used on machines to make patch cables.
Eug
Lifer
- Mar 11, 2000
- 24,048
- 1,679
- 126
After looking around, it seems Cat6e really is a common term, even though it's not a recognized term.
Cat6e seems to be a marketing term to say "This cable exceeds the baseline performance requirements of Cat6, but doesn't meet Cat6a spec".
For example, the cable I purchased was General Cable Category 6 Enhanced. Basically they're just claiming it's better built than what the minimum spec requires.
I've heard it called an "X Member" ("ex-member"). It's equal parts of a spacer, additional insulation (extra dielectric), and strength member.
I made a proposed edit in the main post. The Bold italics. If there is a general approval I will make it perm.
skyking
Lifer
- Nov 21, 2001
- 22,715
- 5,842
- 146
You have a perfect user name for a post about icky-pick!!
I don't know what I'd do without a roll of paper towels.
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