On 10/16/19 4:04 PM, Michael Thomas wrote:
After some poking around, I found this gizmo. It says that it can use between 1-8 pairs to power it from the co. If there was already a home run to the co (which is almost certainly true in my case), it seems like that would be a cheaper option? Then you just have one diesel generator at the co that charges the batteries.
Yep, things like this are a great option if you're overbuilding existing copper plant with fiber. The old copper gets relegated to duty as a power carrier, and the fiber moves the bits to the DSLAM. As another poster said, you just keep pushing these out to keep loop lengths down and get the bandwidth available to the end user up. G.FAST is the next iteration of this sort of thing. You run fiber all the way to the ped at the curb or even into the building for multi-dwelling applications then re-use the existing drop to get into the customer prem. 4-8 ports is common on these types of things. Many support either remote span power using the old copper plant or sometimes also reverse power from the customer prem which is really handy if your a pure-play fiber carrier re-using existing customer-owned copper infrastructure or if your copper plant has rotted to the point that you're loathe to put 190VDC on it for a few miles from the nearest powered RTU or CO. The actual power that's needed per port is usually pretty small. Maybe a dozen watts or so. There's obviously a base load on the unit, so the more ports you have lit the lower that per-port number will go with diminishing returns. It's low enough that, at 190VDC, you can feasibly power things over a mile or more with just a few pairs of existing 24AWG outside copper without the voltage drop or power loss and cable heating being too bad. -- Brandon Martin