The AT-G8T Copper GBIC transceiver is based on Gigabit Ethernet IEEE 802.3 standard, 1000BASE-T standard, and provide a quick and reliable interface for the Gigabit Ethernet application. The 1000BASE-T physical layer PHY can be accessed via I2C, allowing access to all PHY setting and features. In addition, it complies with the GBIC Specification Revision 5.5.