This Allen Telecom development established repeaters as standard elements in wireless networks. Our cable designers and manufacturing teams have continually advanced twisted pair technology to support ever higher data rates. Extend-A-Cell Repeaters Year of Innovation: 1987 Repeaters that enabled cellular operators to provide coverage with lower cost installations without requiring backhaul. The unshielded twisted pair cables became known as “data grade UTP” and were standardized as Category 5e in global standards for use in local area networks (LAN) and other applications. This dramatically improved the level of isolation between the pairs without necessitating shielding. Second Decade: 1986-1995 Tightly Twisted LAN cables Year of Innovation: 1987-1988 Nearly 30 years ago, an innovative group of cable designers within the copper cabling division of AT&T (now part of CommScope) discovered that twisting conductors together very tightly would maintain the mechanical helical structure and minimize conductor nesting in cables.
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