It is the junction point between the distribution fiber cables and the drop cables that deliver fiber directly to user locations, like homes, offices, or multi-dwelling units (MDUs). FATs especially make fiber termination, splicing, splitting, and distribution easy. A Fiber Access Terminal (FAT), also known as a Fiber Access Terminal Box (ATB) or Fiber Distribution Terminal (FDT), is a key component found in optimized fiber optic access networks for FTTH implementations. It is widely deployed in FTTH, FTTB, and other access networks to ensure stable signal transmission from backbone cables to end. An access terminal box (ATB) is a device that is used in telecommunication networks to terminate and distribute subscriber lines.
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