The Electrical Contractor Network

ECN Electrical Forum
Discussion Forums for Electricians, Inspectors and Related Professionals

Books, Tools and Test Equipment for Electrical and Construction Trades

Register Now!

Register Now!

We want your input!


2017 NEC and Related
2017 NEC
Now Available!

Recent Posts
Forum Software Upgrade coming soon...
by lesk
01/16/17 06:43 PM
Faricating Guards out if Lexan?
by frank
01/16/17 04:33 PM
Would ELV branch circuits be a good idea?
by LongRunner
01/16/17 07:42 AM
100% breakers?
by Texas_Ranger
01/16/17 06:13 AM
Dangerous DIY Advice
by Potseal
01/12/17 09:52 AM
New in the Gallery:
Desk-mounted "power-board"
Shout Box

Top Posters (30 Days)
HotLine1 15
gfretwell 11
ghost307 10
sparkyinak 9
frank 9
Who's Online
2 registered (lesk, LongRunner), 268 Guests and 4 Spiders online.
Key: Admin, Global Mod, Mod
Page 1 of 3 1 2 3 >
Topic Options
Rate This Topic
#33182 - 01/13/04 10:18 PM CAT 5
elecbob Offline

Registered: 08/23/02
Posts: 142
Loc: WA
I ran a total of 28 lins of CAT5+ cable to 13 different locations.
1 phone line to each
1 network line to each
1 printer line to 2 locations
Now the customer wants me 2 install all the jacks. This was not in the original plan. I can to the individual locations but what do I do on the other end? Where they all come together. Anyone know of a website describing the equioment I need?

Work Gear for Electricians and the Trades

Work Gear for Electricians and the Trades
Work Gear for Electricians and the Trades
Arc Flash Clothing, Gloves, KneePads, Tool Belts, Pouches, Tool Carriers, etc. etc....

#33183 - 01/13/04 10:58 PM Re: CAT 5
Big Jim Offline

Registered: 07/18/03
Posts: 377
Loc: Denver, CO USA
You need to ask the customer what he really wants. There are punchdown patch panels that are usually rackmount - read pricey. I have seen surface mount plastic blocks that will hold 4 jacks. In my house, I just put a couple of 2x4 boxes on a backing board and used faceplates with 4 jacks each. For the phone side, I used a "66" block and punched down all 4 pairs of each cat5. That allows up to 4 idependant phone lines. If you keep it simple, you can find all the parts you need at the local Big Orange Box. If it gets complicated, Graybar handles a lot of networking hardware.

#33184 - 01/14/04 02:46 AM Re: CAT 5
zapped208 Offline

Registered: 02/18/03
Posts: 201
Loc: Somewhere in USA
elecbob,- I am sure you know some tele-data installers. Get a quote from them to install the ends and punch downs. Then you tack on your mark-up and give your quote to the owner as a extra, since it was not in your bid. I do this all the time and it seems to work.
Shoot first, apologize later.....maybe

#33185 - 01/14/04 03:51 AM Re: CAT 5
sparky Offline

Registered: 10/18/00
Posts: 5545
the '66' blocks , per Big Jim are easiest..

the ones i use come in 3 sizes, DD1,DD2,DD3 which are just a JB, the options from there are quite intricate, Leviton makes varied models of structured media...
a base model (also just a JB)

ana advanced...

one can even incluse a DSL or router...

you'll need to get a punchdown tool for this...

networking is big, there are also many forums addressing the particulars...

#33186 - 01/15/04 01:57 AM Re: CAT 5
rizer Offline

Registered: 01/03/04
Posts: 90
Loc: bradenton ,fl.,usa
i thought cat 5 cable needed a cat 5 connector matching the number of pairs and a crimp tool?

#33187 - 01/15/04 04:08 AM Re: CAT 5
sparky Offline

Registered: 10/18/00
Posts: 5545
that's the user end rizer...

or one use plates w/ screw down terminals...

#33188 - 01/17/04 06:12 PM Re: CAT 5
Scott35 Offline

Broom Pusher and

Registered: 10/19/00
Posts: 2724
Loc: Anaheim, CA. USA

Go for it!
If you have the time (and can make a profit too!), I would suggest you do the punchdowns on all ends.
If you need additional help in these areas, feel free to ask us, or contact directly via E-mail (contact me
if needed).

As suggested, get some 66 blocks for the voice terminations at the TBB, and a nice CAT-5 rated
patch bay (patch panel) for the Data terminations.
We set up an "MDF" (Main Distribution Frame) which contains patch panels for both voice and data, then
the LAN equipment gets set on the MDF. Voice / Analog phone stuff is connected to the peripheral
telephone equipment via 25 pair runs to whatever is needed (or directly to the PET - Protected
Entrance Terminal at the MPOE - Minimum Point Of Entrance).

At first, the work may be confusing, and a bit overbearing - but after time it will become second nature!

Being able to do these installs may allow your company to take on more work.

There's one aspect of this stuff not yet addressed as I can see - Certification of Installations. This
requires a pricey $$$ tester. Basically what this means is (if required by the client), after the LAN
cabling is installed + identified (outlets / ports ID), testing is done for CAT-"X" compliance.
Not difficult to do, just keep things "right" and you should pass tests!

That brings up another thing - colors for cable jackets!
Do yourself a big favor and use two different colors for your system types! Common ones are Yellow for
Data and Blue for Voice (Analog/Telephone).
When installing colored cables, be sure the pulling force does not result in "Sections Of White Jacket"
on colored cables! This happens when cables get strrrreeeeettttcccchhhheeedddddd!
Stretched cables usually result in a CAT-5 cable not being Certifiable for CAT-5 (100 MBPS).
Known as "Dog-5", this can really suck!

Good luck!

Scott " 35 " Thompson
Just Say NO To Green Eggs And Ham!

#33189 - 01/17/04 07:07 PM Re: CAT 5
Bjarney Offline

Registered: 04/10/02
Posts: 2561
Loc: West-Southern Inner-Northeast ...
"DOG 5"... That's hits the nail on the head.

#33190 - 01/17/04 08:33 PM Re: CAT 5
hbiss Offline

Registered: 12/16/03
Posts: 893
Loc: Hawthorne, NY USA
All we do is telecom and data. Here is what you need to do:

1) Data jacks are orange, CAT5 or better. ALWAYS USE THE 568B WIRING SCHEME. I recommend Leviton #41108-RO5. These are "keystone" jacks that snap into a plate. Single gang plates are available with up to six ports.(Six jacks). We usually use the 3 port, #41080-3*P. (replace * with W for white, I for ivory). Use #41084-B*B to blank up any unused ports.

2) The voice jacks are CAT3. These are 6 pin jacks #41106-R*6. Only punch down the wh/bl and the wh/or pairs. The other two pairs are spares. We always make the voice jacks the same color as the plate.

3) At the other end, terminate the voice runs on a 66 block. (Leviton #40066-M25)(Sorry Sparky, I've never seen that junk you are using.) This is a split 50 pair block which means that you can put 6 four pair cables on each side. Always install a 66 block on a 89D standoff bracket. (Leviton # 40089-D) YOU WILL HAVE TO KNOW THE COLOR CODE!! If a telcom vendor is going to install a system DO NOT DO ANYTHING WITH THE VOICE CABLES. Don't punch them down, leave them long enough at least to reach the floor. Cut them all to the same length and coil them up together into one neat coil. Don't waste your time marking or tagging the runs. We will tone them out as we terminate them.

4) The data runs get terminated on a patch panel. For 13 runs you will need a 16 port #59484-U16. This is a 1 space by 19" rack panel. Use a hinged wall bracket to mount it to the wall. REMEMBER TO USE THE 568B SCHEME when you punch your cables down.

5) You will need a punch down tool with a 66 blade for the 66 blocks and a 110 blade for the jacks and patch panel.

6) NEVER, repeat NEVER even think about certifying the data runs (voice runs don't get certified) unless you absolutely have to. CAT5 cable must be run absolutely without kinks, tight bends or crushes and must be terminated flawlessly. If any of this is not met it will not certify. This doesn't mean it won't work or anyone will notice a problem (unless you really butchered it), it just won't certify and you will have to replace the run. No matter how much experience you have, or how many helpers, you always will have kinks in this stuff. Hopefully you straighten them out but the run can still can fail certification.

7) If you are using plenum rated cable, consider using CAT3 for voice. This is less than half the price of CAT5.

#33191 - 01/17/04 09:01 PM Re: CAT 5
resqcapt19 Offline

Registered: 11/10/00
Posts: 2209
Loc: IL

Just want to ask why? I too use the 568B wiring, but is there any problem as long as everything in the building is done the same way? I have seen 568A called out in specs.

Page 1 of 3 1 2 3 >

ECN Electrical Forums - sponsored by Electrical Contractor Network - Electrical and Code Related Discussion for Electrical Contractors, Electricians, Inspectors, Instructors, Engineers and other related Professionals