10 HE cable rung elements consisting of 10 x 1 HE individual rungs for horizontal cable management directly at the 48.26 cm (19 inch) distribution level. Due to their open mounting holes, the rung elements can be easily slid onto the 48.26 cm (19 inch) system hole pattern of the mounting level at any time, even retroactively, and secured with the existing mounting screws of the installation components. It is possible to expand existing units by linking them with connection combs. The connection comb is placed between two rung elements, connecting them by forming an additional guiding chamber between the rung elements. The connection combs needed for linking are included with each unit. Each individual rung has a height of approximately one height unit (44.45 mm), allowing for HE-related cable management of entire cable bundles. Each cable rung can be selectively opened independently of the others and securely closed again using a rotary latch. This allows for easy structuring of the cabling as well as flexible modifications.