One phone to rule them all – part 1
The farmhouse phone service was installed … connected … ah, buried yesterday. The box was attached to the back side of the building a week ago but then the phone company had to contract to a trenching company to bring the line the 1800 feet from the road to the building. Assuming they actually buried the line the 18 inches deep they said they would, the only risk of destruction is the splice box 1/3 the way down the side of the driveway. Splice boxes are perhaps 3 inches square by 3 feet tall and "phone company green" so the blend in really well with agricultural crops – smart ?! Ill likely paint it safety yellow. It may be too conspicuous but that’s really the goal.
I ran CAT-6 network cable throughout the farmhouse – even for the phone lines. In the case of the primary service, this means there are four redundant pairs, all carrying the same signal. This feeds into the utility room where I have installed a small wall mounted rack unit. eventually, this will take a 1U panel for the phone, a 2U panel for the networking, a 1U panel for the gigabit switch, and a tray for the DSL modem, the router, and possible a NAS. By dawn’s early light, I installed the 12 port panel that services the DSL and phone connections.
For those who have never had DSL service, the way it works is that the phone line entering the building supports both DSL for internet and POTS* for voice. Little in-line filter blocks must be installed for every phone while an unfiltered connection goes to the DSL modem. Since everything is running through the utility room, I chose to use the patch panel to simplify the filter placement. I established a single port as "unfiltered" and then chained the remaining 11 ports together after installing a filter. So, any phone line from the residence which is plugged into port #1 will be unfiltered and can take the DSL modem. Any phone line plugged into #2 thru #12 will get a filtered phone signal. This will allow the DSL modem to go anywhere. In reality, I hope to install the DSL modem in the utility room so no lines from the residence will plug into port #1.
* POTS = plain old telephone service


I once conducted an interview for a new-hire candidate where I posed the challenge to design a communications solution to go into effect in case of a natural disaster. The impetus for my question was Hurricane Katrina. The candidate did a OK job in the short 30 minutes alloted.


