Convenient Cable Ladder Connector Lengthens the Runway System in Your Data Center This SmartRack butt-splice kit creates a secure connection point between two sections of cable ladder to extend the cable runway system in your server room or data center. All mounting and installation hardware is included. The splice plates fit solid and tubular steel runway measuring 1.5 x 0.375 inches (38 x 9.5 millimeters). The SRLBUTTSPLICE is designed to connect Tripp Lite’s SRCABLELADDER, SRCABLELADDER18, SRL90BEND12, SRL90BEND18 and other compatible straight and 90-degree ladder sections.