What procedure validates the connections after installation?

Wire mapping is a procedure that verifies the proper connections of a cable after installation. This process involves checking that each conductor within a cable is connected to the correct pins or terminals at both ends. By ensuring that the wiring configuration matches the intended design, wire mapping helps to confirm that there are no crossed or misaligned connections, which could lead to communication failures or degraded performance in the network.

In contrast, other methods listed have different purposes. Signal testing evaluates the effectiveness and quality of the signal being transmitted through the connection but does not necessarily confirm the accuracy of the physical wire connections. Visual inspection can help identify obvious physical issues, such as damaged connectors or improper cable management, but it does not provide detailed information on the actual wiring configuration. Voltage testing is primarily used to check for the presence of electrical power and ensure that devices are receiving the correct voltage, which is not the same as validating the specific wiring layout.