data and voice in 1 cat 5 cable 2

[bonnieclyde]

many customers are asking if data and voice can be sent through a single piece of cat 5 cable. this is a practice that i strongly advise against yet cannot find any info on the net saying this is bad practice. can anyone help in this area with reasons why it should not happen.

 

[VMPOP]

because the functionality itself cannot be done without congujction between the two streams,

 

[bonnieclyde]

thanks for the advice but what would happen if at the outlet wires 1,2,3,&6 were connected to a data jack and wires 4,&5 connected to a telephone jack. At the patch panel wires 1,2,3,&6 were connected to say port 1 then to a standard switch via patching, and wires 4&5 terminated to port 2 then in turn connected to the incoming phone lines.
also if using the internet with the connections above and the phone rings, do you think data would get corrupted with the voltages needed to power the ring curcuits?

 

[jpm121]

It's a very bad idea but it will probably work. TCPIP for example is a pretty robust protocol and will run over some pretty crappy conditions, albeit at greatly reduced speed and reliability. However, expect noise on the phone line and crummy network performance.

 

[spridge]

http://www.rwdata.co.uk/d-commerce/page1.html

Use them all the time. No problems encountered

Have used the blue 3 x 2 wire telephone units for both analogue and digital handsets.

 

[ISDNman]

There are a number of people that would point out the advantages of complying wih the "Structured Cabling" approach if TIA/EIA T-568.

The main advantage is that everything complies wiht the standards and therefore it is much less of a mess for the next guy to figure it out later.

In this case the jack and patch panel would have all 4 pairs terminated. An adaptor gizmo would be used to break out pairs for different uses, much like what you suggest above. Yes, the adaptors can ad a klugyness factor. But the adavantage is you can unmplug them at any tiem and instantly get back to a standard structure cable, all neatly defined.

For an example of these sorts of adaptors see

http://www.sandman.com

- look in the indiex for "modular adaptors". At least for now they are located here:

http://www.sandman.com/pdf/Page59.pdf

If you visit the cabling forum you will see a number of heated threads on this basic topic.

http://www.tek-tips.com/threadminder.cfm?pid=575

Good luck