This document provides information on Prismaplus XT bridges and gantries. It describes the drive system which uses twin cam gears for self-centering and proper mechanical alignment. It also details the divider and joint which includes stainless steel ball bearings to prevent heavy loads on the mechanism. Additionally, it discusses the slide up and slide down posting systems which allow for time saving and cost efficient posting of non-adhesive vinyl or printed and cut paper posters. The controller allows for adjustable pause times and sign alignment. Safety clips and a quick mount installation system are also optional additions.