PaulD
Active Member
I want to mount a IP camera with PoE via Cat5e on opposite side of a 20 ft wide concrete alley. No power available in area needed so wireless is not an option. Running cable overhead not allowed in my area and tunneling not viable due to cost and layout of the concrete. After a lot of head scratching, I came up with the following possibility and I am curious if anyone else has tried this.
The alley has joints in the concrete...some are from the original pouring and some are cut with a saw.. I dug out some of the goop in the cut joints and they are typically about 1/4" wide and 1" deep and then filled with a goop. None of the major (uncut) joints are close enough to consider for this effort. I think I can dig out the goop, lay my Cat5e cable in the joint and then pour new goop over it for protection. I have a saw and concrete blade if I need to make the joint deeper. Concrete is in excellent condition and no obvious tendency to shift or develop major cracks that would threaten my cable.
Here are my concerns:
1) A small rock may be laying on the joint when a vehicle passes over it and forces the rock into the goop deep enough to damage the cable.
2) The goop (composition unknown) will deteriote the cable and make it unservicable
3) If either of above happens and the power pair in the cable is shorted, will it cause feedback into my switch where PoE is introduced?
4) How will cable hold up buried and exposed to the elements over time. I could use conduit when cable is not in concrete but cable would still get wet. Does any cable exist that is made for buried applications?
The alley has joints in the concrete...some are from the original pouring and some are cut with a saw.. I dug out some of the goop in the cut joints and they are typically about 1/4" wide and 1" deep and then filled with a goop. None of the major (uncut) joints are close enough to consider for this effort. I think I can dig out the goop, lay my Cat5e cable in the joint and then pour new goop over it for protection. I have a saw and concrete blade if I need to make the joint deeper. Concrete is in excellent condition and no obvious tendency to shift or develop major cracks that would threaten my cable.
Here are my concerns:
1) A small rock may be laying on the joint when a vehicle passes over it and forces the rock into the goop deep enough to damage the cable.
2) The goop (composition unknown) will deteriote the cable and make it unservicable
3) If either of above happens and the power pair in the cable is shorted, will it cause feedback into my switch where PoE is introduced?
4) How will cable hold up buried and exposed to the elements over time. I could use conduit when cable is not in concrete but cable would still get wet. Does any cable exist that is made for buried applications?