The optical fiber distribution frame is connected to the optical fiber connector. 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 question is, what are the optical fiber distribution frames? Classification? What are the functions of the optical fiber distribution frame? How to calculate the fiber distribution frame?
Optical fiber distribution frame classification
1. What are the classifications of optical fiber distribution frames?
unitary
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 type of distribution frame not only retains the characteristics of the original small and medium-sized optical fiber distribution frame, but also provides space utilization through the structural deformation of the rack. It is a common structure in the early days of large-capacity optical fiber distribution frames. But due to its inherent limitation in space provision, it has certain inconvenience in operation and use.
drawer
The drawer-type optical fiber distribution frame also divides a rack into multiple units, and each unit consists of one to two drawers. When welding and adjusting the wire, pull out the corresponding drawer to operate outside the frame, so that there is a large operating space, so that each unit does not affect each other.
The drawer is provided with a locking device in the pull-out and push-in states, which can ensure the stable and accurate operation and the safety and reliability of the connecting devices in the unit.
Although this optical fiber distribution frame subtly provides a large space for the operation of the optical cable terminal, like the unit type, it still cannot provide the greatest convenience in the storage and arrangement of the optical connecting line. This rack is the most common form at present.
modular
The modular structure is to divide the optical fiber distribution frame into various functional modules. The splicing, distribution line, connecting line storage and other functional operations of optical cables are completed in each module respectively. These modules can be combined and installed in a common rack according to needs. Inside. This structure can provide maximum flexibility and better meet the needs of communication networks.
The introduced modular high-capacity fiber distribution rack uses unique structures such as panels and drawers to make the operation of fiber splicing and distribution lines more convenient; in addition, the use of vertical cable troughs and intermediate distribution racks effectively solves the problem of pigtail fiber distribution. put and storage issues. Therefore, it is the most popular type of high-capacity optical fiber distribution frame, but its cost is relatively high.
2. What are the functions of the optical fiber distribution frame?
Optical fiber distribution frame plays an important role in the safe operation and flexible use of optical fiber communication network, which is embodied in the following four aspects:
After the optical fiber patch cord enters the rack, the optical fiber distribution frame can fix the optical fiber patch cord on the rack, and can also mechanically fix the outer sheath and reinforcing core, thereby protecting the optical fiber patch cord from external mechanical damage.
The optical fiber distribution frame adopts a box structure, which can save space and optimize cable management.
The high-density pre-terminated system used in the optical fiber distribution frame can enhance the performance of the network and make the network reliable and scalable.
Optical fiber distribution frame can easily and quickly deploy high-density interconnection and cross-connection in the data center, simplify cabling deployment, improve cabling density, and effectively reduce cabling failures, making cabling flexible.
3. How to calculate the optical fiber distribution frame
Take 6-core indoor multimode fiber and 24-port fiber distribution frame as an example:
Assuming that there is a central computer room and 5 floor wiring rooms, it can be determined that there are 5 optical fibers.
At this time, the optical fiber distribution frame is 5 (one in the wiring room on each floor) + 1 (one in the central computer room) = 6
Optical fiber distribution frame in the central computer room = 4 (4 fibers) * 5 (5 fibers) = 20, 20 < 24, so only one is enough, if it is 10 fibers, it is 4 * 10 = 40, 40<48, at this time, the central computer room needs 2 optical distributions.
There is also a situation that is often encountered in actual operation. There is a central computer room and a floor wiring room on the first floor. In this case, if everything is in the same cabinet, the optical fiber can also be combined into the same optical distribution. . for example.
6-core indoor multimode fiber and 24-port fiber distribution frame, one central computer room and 5 floor wiring rooms
If the central computer room and the wiring room on the 1st floor are both on the 1st floor, at this time, the number of optical fiber points on the 1st floor is 24 (4*5+4), just one 24-port optical distribution is enough, so at this time , we can also solve the problem with 5 light distributions.
Regarding the relevant knowledge of optical fiber distribution frame, today Xiaobian will first explain to you here. The selection of optical fiber distribution frame is also an extremely important and complex work. We should fully consider various kinds of work according to the specific situation. On the basis of repeated comparisons, a fiber distribution frame that can best meet current needs and future development can be selected.
