Figure 6.2: Internal PBx-Based Telephone network 1. Vertical 4-Pair UTP Cords Distribution 5. Horizontal distribution ■■■ 4. Cross-Connect Device 3. Telecommunications Closet on floor 2. Wire bundles 6-56-5 Figure 6.2: Internal PBX-Based Telephone Network 3. Telecommunications Closet on Floor 2. Wire Bundles 4. Cross-Connect Device 5. Horizontal Distribution 1. Vertical Distribution 4-Pair UTP Cords