(1) The loss is insensitive to optical wavelength and can meet the transmission needs of different wavelengths.
(2) Uniform light, the signal can be evenly distributed to the user.
(3) Compact structure, small size, can be installed directly in the existing various handover boxes, do not need to leave a large installation space.
(4) A single device circuit channel is many, can reach more than 32 road. (5) The multi-channel cost is low, the more the number of points, the more obvious the cost advantage.