Which of the following devices is found in a telecommunications room and allows horizontal wiring to be gathered, with each run terminating in a female port?

A patch panel is typically located in a telecommunications room (also known as a wiring closet) and is mounted on a networking rack. There will be connections on the back to "punch down" wires into. A female port, usually an RJ45 type, will be located on the front. A multiplexer is a device that combines many connections into one. A rack U is just the height of a device that is mounted in a rack (e.g., my patch panel is 4U). Each U measures 1.75 inches. The demarcation point is the point at which responsibility for a network changes from the ISP to the client.