What term refers to the wires that run from the subscriber's PBX back to the serving central office?

What term refers to the wires that run from the subscriber's PBX back to the serving central office?

• A. Local Loop
• B. Twisted Pair
• C. Local Exchange
• D. Exchange Area

Answer: (A)

The local loop is the wires that connect the subscriber’s premises to the serving central office. It’s the last-mile path that carries the voice signal from the customer’s location (including a PBX when used) back to the central office switching equipment. This term specifically describes the route, not the equipment or the type of cable. Twisted pair is a type of conductor used for such connections, but it describes the physical medium rather than the network path. The local exchange refers to the central office itself, not the wires leading to it. Exchange area isn’t the standard term for this connection.

The local loop is the wires that connect the subscriber’s premises to the serving central office. It’s the last-mile path that carries the voice signal from the customer’s location (including a PBX when used) back to the central office switching equipment. This term specifically describes the route, not the equipment or the type of cable.

Twisted pair is a type of conductor used for such connections, but it describes the physical medium rather than the network path. The local exchange refers to the central office itself, not the wires leading to it. Exchange area isn’t the standard term for this connection.