Power + DSL signal in same 700ft cable length
I have (perhaps?) a unique situation. I'm trying to get broadband internet access to my home in the Rocky Mountains. I plan to lay wire (2TPR 22AWG Solid Telephone Drop Wire) from a Qwest pedestal near enough to the CO to get DSL, to a peak nearly 700 feet away. At that peak, I plan to terminate the wire with a DSL modem, attached to a wi-fi router, attached to a parabolic antenna (which is grounded at < 4 ohms). From the antenna, I'll beam the 802.11b signal two miles to a second antenna on my home. I've got the wi-fi part figured out, but am struggling with that 700 ft DSL wire run.
A Qwest splicer guy told me the wire type/gauge I'd need. He also told me that I'd be able to power the modem out on the peak using the same wire, and even using the same conductor pair! I know that phone lines are similarly powered, but with less voltage. Meanwhile, I've read all of these horror stories about power on parallel lines degrading phone signals.
So I have 2 questions:
- Can I use the same wire to carry low-voltage power out to the modem? (probably 12v or 48v -- still need to do the loss calculations). Can it be on the same conductor pair, or a second pair within the same wire? What can I do to ensure no signal degradation?
- What kind of equipment goes on each end of the cable to force power and a signal through the same wire? And, at the peak, can that equipment power both the router and the modem? (I still need to make a final selection of actual devices, based on power consumption and whatever I learn here)
Thanks in advance.
read more and respond »Posted 5 years ago by getwilde in LAN and Telecom Cabling
