When the user works at home on his home computer, a work monitor logs his file activities on all the drives of his home computer in a work monitor log, which can be displayed in a work monitor window. The system includes a first laser module comprising a laser able to form at least one via per pulse through one or more polymer layers. In order to transmit data from the first circuit node to the second circuit node, the RF transmitter associated with the first circuit node modulates the data onto an RF carrier frequency to provide a modulated RF signal and transmits the modulated RF signal over the transmission line. Moreover, the method may include generating a second signal indicating detection of the reflection.