Which term describes the vertical cross-connect in a building's telecom infrastructure?

• A. Vertical cross-connect
• B. Horizontal cross-connect
• C. Patch panel
• D. Distribution frame

Answer: (A)

The vertical cross-connect is the backbone that runs between floors, linking the main distribution frame in the building’s telecom room to the floor distribution frames on each level. This vertical cabling carries data between floors, forming the inter-floor cross-connections that tie the entire building’s network together. On each floor, the horizontal cross-connect handles connections from the floor’s IDF to user outlets. A patch panel is where cables terminate and are organized, while a distribution frame is a broader hardware platform used for cross-connecting circuits. So, the inter-floor, backbone-style connection you’re looking for is the vertical cross-connect.