DDF (Digital Distribution Frame): Manages digital signals. For example, the main distribution frame (MDF) located at a telephone central office terminates the cables leading to subscribers on the one hand, and cables. There are many types of cables supported by electronic distribution frames, including copper cables Cat. 6A, which can support unshielded cables or shielded cables; including multi-mode optical cables and single-mode optical cables, Support common connectors LC, ST, SC, MTRJ, etc. This is where cables are punched down and it consists of patch panels and punch-down blocks. These network components form the foundation of structured cabling, ensuring efficient data flow while supporting.