1000 BASE-T MAGNETICS MODULES Designed to Support 1:1 Turns Ratio Transceivers 1 ) Designed for long haul Gigabit Ethernet ( 10/100/1000BASE-T ) full duplex applications . 2 ) Supports 4 pairs of category 5 UTP cable . 3 ) Cable interface for isolation and low common mode emissions . 4 ) Compliant with IEEE 802.3ab standard for 1000 Base-T.