what is the maximum length of cat 6 cable
Category 6 cable When used for 10/100/1000BASE-T, the maximum allowed length of a Cat 6 cable is up to 100 meters (328 ft). This consists of 90 meters (295 ft) of solid "horizontal" cabling between the patch panel and the wall jack, plus 5 meters (16 ft) of stranded patch cable between each jack and the attached device.[7] For 10GBASE-T, an unshielded Cat 6 cable should not exceed 55 meters.[8]
Standard-gauge railway A standard-gauge railway is a railway with a track gauge of 1,435 mm (4 ft 8 1⁄2 in). The standard gauge is also called Stephenson gauge after George Stephenson, International gauge, UIC gauge, uniform gauge, normal gauge and European gauge in the EU and Russia.[1][2][3][4][5] It is the most widely used railway track gauge across the world with approximately 55% of the lines in the world using it. All high-speed rail lines, except those in Russia, Finland, Portugal and Uzbekistan, use standard gauge. The distance between the inside edges of the rails is defined to be 1435 mm except in the United States, where it is still defined in Imperial and US customary units as approximately 4 ft ​8 1⁄2 in.