Cable protection tube where the need to play a trumpet what role
Cable bridge connection piece and the crossbar respectively: the bridge connection piece is the connection device, is in the direction of the longitudinal extension of the bridge to connect the adjacent two sections of the bridge, and the cross is a component of the bridge hanger; cable bridge connection And the bridge has a fixed bolt with a prefabricated hole (or groove), and the cross is the staircase bridge inside the brace; the extension of the bridge when the bridge with a bridge connection, and the bridge when used to cross the fork. At this time to use hoisting bracket. The lifting bracket is composed of a boom and a crossbar, and the shape is U-shaped. The upper end of the boom is fixed on the support of the roof board and the lower end is used to support the weight of the bridge.
Is not a zero line is not a ah. Three zero lines.
ODF is suitable for ODN network office room and optical distribution point, FDT for outdoor cable centralized wiring management; the two are common to be able to properly complete the wiring cable and the introduction of fiber optic cable connection and distribution, and has the optical signal power Distribution function; the main difference is that ODF for FTTH on the cable requires more central room and light branch points. And FDT applies to the cable requirements of the district light branch points; specific can see the following network topology, FDT and ODF node location description is very clear. Hope to answer your doubts, thank you.
