I don't think EPON carries the same huge amounts of data as GPON, technically GPON is a waste in Pak since most ISPs don't even take full advantage of FTTH and they only offer pathetic packages like 30 Mbps.They did place a black box on the pole which is like couple of feet away from my home. What is the idle RX power level? I did send them a screenshot, they too said something about the power and they said they will send over some guys to fix it. Also according to the tech guy this is currently EPON not GPON but they will shift it to GPON.
RX should also fluctuate, but by +/- 1 dBm. I have around -21, sometimes -22 dBm RX normally.
Black box on the pole is the fiber splitter.