[QUESTION] Multi Flavor Network

[Yur1k]

Folks:

A little question, short, concise and answers might be long ... Hope you can help.

1) I have 1 SPARC running Solaris 8 with 2 Ethernet Card
I have 1 Desktop running Windows 2000 with 1 Ethernet Card
I have 1 Laptop running Windows 2000 with 1 Ethernet Card
I have 2 x 4 ports Hub
I have 1 SDSL connection
I have a 3 level townhouse wired with (cat 3) phone line

2) What I want to do is:
Connect everything together
I have cat 5 cable

3) I know that cat 5 cable are composed of 4 twisted pair
I'd like to know how to run the cat 5 throughout the house.
I suppose that I can replace OLD phone lines by cat 5 everywhere.
But which pin# should I use for my phone line & DSL
I think phone line require 1 twisted pair (2 wire), while Ethernet require 2 twisted
pair (4 wire). And what about my SDSL (I suppose also 1 twisted pair (2 wire).

4) Here's my question:
* Which pin/color should I use for my phone line
* Which pin/color should I use for my SDSL line
* Which pin/color should I use for my Network
* Should the cat 5 be saisy chained from one jack to the other one?
* How many HUB should I be using?
* Can I connect 1 cable from the SDSL modem to 1 Network Card
* Can I connect 1 cable from my SPARC straight to the Wall or to the Hub?

Thnx,

-Dan.

 

[gunthnp]

sorry but it not that easiy for sdsl you use to pair and for pc network you can use all 4 pair as in 100 mb/s networks for 10mb/s you use 3 pair you would need to cat5 to every room to get it to work So long and thanks for all the fish.

 

[DaveGoTech]

Wrong - the cable has 8 wires, but only 2 pair (4 wires) are used for ethernet.
Anyhow, don't daisy chain. Connect everything to the hub.

 

[proctorcw]

Nod. The spec for 100 base-T only uses two pair. Thats the good news. The bad news is that the other 4 have to remain idle as a stabilizing element. By spec you can't just take the others for other uses.

Now ... could you use the others and still have your network work. Yes, quite possibly. But since it violates spec, no one can tell you what will and won't be a problem. The spec is there simply to tell you what will ALWAYS work.

That aside, Daisy chaining won't work. 100 Base Tx is a star topology. It all has to come back to a hub/switch. You're actually better to run new wire and leave your existing cat 3 for phone. Just buy a two port modular plate and punch your cat 3 into one port and your data into the other.

Also, be very careful mixing different items on a single cable. I am not sure the voltage on SDSL (I don't feel like looking right now.) But, for example, a PBX connection or ISDN plugged into a phone will melt the phone.

 

[wybnormal]

Actually the phone plugged into the ISDN would just sit there. It's a pretty simple device (old phones. The new digital phones are a ? but I would guess since they run off the 48 volts, they might be ok. Plugging a ISDN phone/circuit into a POTs line would kill the device unless otherwise protected due to the 48v DC on the POTs line. The ISDN is digital and requires it's own PS as there is not any CO supplied power on the circuit like a POTs line. Which is why many Telcos will not install a pure ISDN phone system without a POTs backup. They dont want to be sued over an emergency where power has gone out at the customers site and the phones stop working.

Not having worked with PBX, I'm not sure what the reaction would be but I have heard the horror stories of plugging a POTS modem into the hotels PBX line and blowing it out.. oops!!

Are we having fun yet?

Mike S
"Diplomacy; the art of saying 'nice doggie' till you can find a rock" Wynn Catlin