The optical fiber distribution frame is connected with the optical fiber connectors. In the integrated wiring, the optical fiber distribution frame will appear after the optical fiber appears, and the optical fiber generally appears in the vertical subsystem, then the problem is here, what are the optical fiber distribution frames Classification?
The unit type optical fiber distribution frame is to install multiple units on a rack, and each unit is an independent optical fiber distribution frame. This kind of distribution frame not only retains the characteristics of the original medium and small optical fiber distribution frame, but also provides space utilization through the structural deformation of the frame. It is a common structure in the early days of large-capacity optical fiber distribution frame. However, due to its inherent limitations in space provision, there are certain inconveniences in operation and use.
The drawer type optical fiber distribution frame also divides a rack into multiple units, and each unit is composed of one to two drawers. When performing welding and wire adjustment, pull out the corresponding drawer to operate outside the shelf, so that there is a larger operating space, so that each unit does not affect each other. The drawer is equipped with a locking device in both the pull-out and the push-in state, which can ensure the stability and accuracy of the operation and the safety and reliability of the connecting devices in the unit. Although this kind of optical fiber distribution frame cleverly provides a larger space for the operation of the optical cable terminal, it still cannot provide the greatest convenience in the storage and placement of the optical cable, just like the unit type. This kind of rack is currently the most popular form.
The modular structure divides the optical fiber distribution frame into a variety of functional modules. The fusion splicing of optical cables, wiring, connection line storage and other functional operations are completed in each module. These modules can be combined and installed in a common rack as required. Inside. This structure can provide maximum flexibility and better meet the needs of communication networks. The introduced modular high-capacity optical fiber distribution rack uses unique structures such as panels and drawers to make the operation of optical fiber splicing and wiring more convenient; in addition, vertical wiring troughs and intermediate distribution racks are used to effectively solve the problem of pigtail distribution. Putting and storage problems. Therefore, it is the most popular kind of large-capacity optical fiber distribution frame, but its cost is relatively high.