Replace 6 existing dynamic message signs (DMS) with contractor furnished full color matrix DMSs with a pixel pitch of 20 mm in St. Louis County and St. Louis City. Replace 110 Ethernet switches, expansion modules as noted and power supplies with Commission furnished equipment in existing roadside cabinets in Jefferson County, St. Charles County, St. Louis County and St. Louis City. New DMS controllers shall be installed at all of the DMS locations and provide new equipment cabinets, foundations and relocate equipment as noted in the plans. The work also includes modifying existing electrical conductors and fiber optic cabling to service the new equipment cabinets at the roadside locations. DMS control cable shall be a multimode fiber optic cable. At the DMS replacement locations and many of the cabinets getting replacement Ethernet switches, install Commission furnished Digital Logger IP addressable power strips.
