<p>A DSX system having a plurality of jacks mounted in a chassis, the jacks including IN and OUT ports accessible from the front of the chassis and tip and ring springs corresponding to each of the IN and OUT ports. The chassis also includes IN and OUT co-axial cable connectors electrically connected to the tip and ring springs of the jacks, and MONITOR co-axial cable connectors for use in monitoring signals transmitted through the IN and OUT connectors.</p>