Passive Optical Fiber Expansion Solution

In view of the current situation where the optical fiber core of the access layer is cluttered and the resources are relatively tight, the transmission potential of the existing network optical cable is greatly explored, the utilization efficiency of the optical fiber core is greatly improved, and the use of urban pipe hole resources is minimized.

The passive solution is adopted to replace the gray light module of the original equipment as the color light module, and a passive color light box (CWDM combiner/demodulator) is added to realize the convergence of services transmitted by multiple optical fibers into one optical fiber for transmission, thus solving the problem of a shortage of optical fiber resources for users.