ECN Electrical Forum - Discussion Forums for Electricians, Inspectors and Related Professionals
ECN Shout Chat
Top Posters(30 Days)
dsk 13
doc 3
Admin 3
Recent Posts
Bathroom electrical
by doc. 08/19/17 06:53 AM
electircal ageing test on IPC
by SIAME. 08/15/17 02:43 AM
electrical aging test on IPC
by gfretwell. 08/15/17 12:27 AM
"Line level" audio on Cat 5?
by gfretwell. 08/08/17 10:39 PM
Fire alarm phone lines and color coding
by gfretwell. 08/08/17 10:26 PM
New in the Gallery:
Housebilding DIY wiring
Popular Topics(Views)
239,938 Are you busy
175,524 Re: Forum
167,787 Need opinion
Who's Online Now
1 registered members (doc), 61 guests, and 10 spiders.
Key: Admin, Global Mod, Mod
Previous Thread
Next Thread
Print Thread
Rate This Thread
Page 1 of 4 1 2 3 4
#176604 - 04/07/08 01:50 PM cat5 or cat3  
HCE727  Offline
Member
Joined: Nov 2005
Posts: 186
Delaware County, PA, USA
What is the advantages and disadvantages of having cat5 or cat3 in a residence?


Hank

Study Guides for VDV / Structured Cabling Installers

Voice, Data, Video, (VDV) Fiber Optics, Communications, Low Voltage,
Fire Alarm, Electronic Security Systems Installations & Related

NTC Low Voltage Training & NICET Exam Study Guides
Low Voltage Training & NICET Exam Study Guides


#176605 - 04/07/08 03:09 PM Re: cat5 or cat3 [Re: HCE727]  
LarryC  Offline
Member
Joined: Jul 2004
Posts: 783
Winchester, NH, US
Cat3 SHOULD work for MOST applications. Cat5 & Cat5e is what is currently available. If this a new install, I would go with 5e or install EMT/NMT for an easier upgrade path. If this is an existing installation, AND the wiring is in good shape AND the customer is only doing basic Ethernet use, Cat 3 will function.

I'm not sure how much future proofing you should be doing, because the future might be Wireless and all of the installed cable will be not used. If you are going to install network cabling, I would think that a power receptacle should be in the next stud bay over.

Larry C


#176606 - 04/07/08 05:59 PM Re: cat5 or cat3 [Re: LarryC]  
gfretwell  Offline


Member
Joined: Jul 2004
Posts: 9,103
Estero,Fl,usa
I would not install CAT-3 for anything but POTS phones. The average homeowner LAN is pushing the original (published) CAT-5 limits at 100mz and if they buy a gigabyte LAN they have exceeded it. It might work but it is not supported.


Greg Fretwell

#176612 - 04/07/08 08:48 PM Re: cat5 or cat3 [Re: HCE727]  
HCE727  Offline
Member
Joined: Nov 2005
Posts: 186
Delaware County, PA, USA
My question should have been is what is cat5 good/needed for and what is cat3 good/needed for in a residence? English guys.


Hank

#176616 - 04/07/08 09:42 PM Re: cat5 or cat3 [Re: HCE727]  
gfretwell  Offline


Member
Joined: Jul 2004
Posts: 9,103
Estero,Fl,usa
The cat(egory) refers to the data speed it can handle.
Cat 3 is overkill for phone at 16mz but if you have 2 lines you still need twisted pair so that is about as cheap as you can go. Cat 5 and cat 5e are for high speed data but that is becoming very common in houses so it is the defacto wire people install for everything. With the right terminations you can carry video, audio or just about any other kind of "data". Unless you do enough low voltage to carry a couple different spools of wire I think I agree, just use cat 5e for all your phone and data wiring.

I still don't think it is right for doorbells, garage door openers and thermostat wire (too small) but I see it.


Greg Fretwell

#176791 - 04/12/08 06:09 AM Re: cat5 or cat3 [Re: gfretwell]  
pauluk  Offline
Member
Joined: Aug 2001
Posts: 7,520
Norfolk, England
For POTS wiring -- including DSL -- it doesn't need to be CAT-anything.


#176875 - 04/15/08 05:57 AM Re: cat5 or cat3 [Re: pauluk]  
Trumpy  Offline


Member
Joined: Jul 2002
Posts: 8,217
SI,New Zealand
OK then Paul, how does that work for folks that may only want a VoIP phone in the future?
Not the POTS?


Let's face it, these days if you're not young, you're old - Red Green grin

#176887 - 04/15/08 10:55 AM Re: cat5 or cat3 [Re: Trumpy]  
pauluk  Offline
Member
Joined: Aug 2001
Posts: 7,520
Norfolk, England
VoIP to what/where? If the line needs to be used to support a fast Ethernet connection back to a central PBX or router, then yes, CAT-x would be needed. If the line is still just providing the DSL connection for the VoIP interface at that point, then no.


#176889 - 04/15/08 11:03 AM Re: cat5 or cat3 [Re: pauluk]  
gfretwell  Offline


Member
Joined: Jul 2004
Posts: 9,103
Estero,Fl,usa
I think the point is that Cat 5 wire is not that more expensive than bell wire. You money is in labor, particularly after the wall is closed up. Why wouldn't the customer want the best wire they can get?


Greg Fretwell

#176937 - 04/16/08 01:58 PM Re: cat5 or cat3 [Re: HCE727]  
u2slow  Offline
Member
Joined: Sep 2003
Posts: 200
Salt Spring, BC, Canada
I install Cat5e at a minimum - even if its only telephone. All too often the occupants want to redecorate, re-organize, or add another computer somewhere else in a few weeks or months. Then the couple runs you put in the first time can be re-used for 100Mbit ethernet.

I try to push for a central 'media panel' if at all possible. Makes subsequent work easier.


Page 1 of 4 1 2 3 4

Member Spotlight
Joe Tedesco
Joe Tedesco
Boston, Massachusetts USA
Posts: 2,749
Joined: October 2000
Show All Member Profiles 
Featured:

2017 Master Electrician Exam Preparation Combos
2017 NEC Electrician
Exam Prep Combos:
Master / Journeyman

 

Shout Box
Powered by UBB.threads™ PHP Forum Software 7.6.0
Page Time: 0.019s Queries: 16 (0.003s) Memory: 0.8252 MB (Peak: 1.0064 MB) Zlib enabled. Server Time: 2017-08-19 11:25:54 UTC