Before revision: These standards define how to lay the cabling in various topologies in order to meet the needs of the customer, typically using a central patch panel (which is normally 19-inch rack-mounted ), from where each modular connection can be used as needed.
After revision: These standards define how to lay the cabling in various topologies in order to meet the needs of the customer, typically using a central patch panel (which is often mounted in a 19-inch rack ), from where each modular connection can be used as needed.