组合排列表设计.docVIP

组合排列表设计 Combinatorial List Design A combination list represents the positions of various combinations on the rack. Number of combination location: Combination location shall be serial number and cannot be repeated. 1. number of combination rack (shelf No.) In the relay room, the combination frame should be arranged according to the length and width of the relay. It should be arranged in 4 or 5 frames in each row, and also in 6 rows. Numbering Rules: into the relay room, facing the front rack, from front to back order for arranging, each row from left to right order code frame no.. Two digit can give each shelf number, ten digit numbers Paihao, a frame number. For example: 12 means the first row of second, and 24 means the second row, the fourth. 2. combination layer number Assemble in the position on the composite frame, from bottom to top in 0-10 order layer number. The zero layer is not assembled, and the power terminal and the 18 column terminal are installed. When the indoor cable at the top of the combination frame rack installation, to set the zero layer at the top of the combination frame, if the relay room ground is left in the groove groove, indoor cable laying, the zero layer is set at the lowest level of the combination frame, is generally located in the top. The position number of the 3. combination Use third numbers to indicate the combination of the layers on the rack. It is customary to add a line between the layer number and the frame number. The location of each combination can be represented by three numbers. For example, 12-9 means the first row, the second layer, the ninth layer, the 12-Z or 12-D, which represents the first row of the second zero layers. Two, the preparation of the combination list 1.6502 centralized combination list General principle: 1 statistics the total number of stations used. Both include a combination of combinations to join together, and include directional combinations and power combinations, as well as amorphous combin