Ⅰ. What is the pigtail optical?
The pigtail optical is also called pigtail optical cable. Only one end has a connector, and the other end is a broken end of an optical cable core, which is connected to other optical cable cores through fusion welding. It often appears in the optical fiber terminal box and is used to connect the optical cable to the optical fiber transceiver. (Couplers, jumpers, etc. are also used for the connection).
Ⅱ. The pigtail optical:
1. The ODF rack should be distributed
It is often seen in the computer room that certain sections of the trunking are covered with pigtail optical, overlapping each other, while the pigtail optical in other trunks are very few. This situation is not conducive to the safety of the transmission business, and also is also detrimental to the beautiful environment of the computer room and causes a waste of resources. The main reason for this phenomenon is that the layout of the ODF rack in the computer room is not reasonable enough, and a large number of equipment that needs to use optical fibers are concentrated in a certain direction of the ODF rack. In order to avoid such phenomena, consideration should be given to the design and construction of the computer room. The ODF rack can be set in the center of the computer room to facilitate the pigtail optical to reach any position in the computer room, and the distribution of optical transmission equipment in the computer room should be considered.
2. Set the ODF jumper rack
In response to the failure to make a reasonable layout during construction and design, and the phenomenon that for some reason, there is indeed a large number of equipment that has a huge demand for optical fiber resources in a certain direction of the ODF rack, the sub-ODF rack should be installed appropriately according to the situation. Replace a large number of optical jumpers in the trunking with optical cables. The sub-ODF rack is installed at the near device end. When performing fiber jumper operations between the equipment in the cabinet and the ODF rack, first jump to the corresponding sub-ODF rack and then jump from the sub-ODF rack to the equipment in the cabinet. But it should be noted that this kind of design will have a certain degree of optical attenuation, and the loss of experience value increase is below 1dB.
3. Optical fiber cabling channel
Due to the limited space resources of many computer rooms, generally only one cabling channel is set in the computer room, and the pigtail optical is routed together with the electrical signal cables. Because the pigtail optical is vulnerable to pressure and lacks a protective layer, if it is not protected by a drivepipe, the pigtail optical is easily damaged and safe transmission is threatened. If the pigtail optical is protected by a drivepipe, the pigtail optical will not be threaded a few times before the cabling channel is full, which is a waste of resources for trunking and is not conducive to the beauty of the computer room. If special optical fiber cabling channels can be used, it is not necessary to protect the pigtail optical with the drivepipe, which saves resources and is conducive to the beautiful environment of the computer room.
4. Selection of the ODF rack
(1) There must be sufficient storage space for redundant pigtail optical.
(2) The flange interface of the ODF rack should be convenient for maintenance. If there is a problem with the flange interface, pull out a certain row where it is located, replace it.
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