"Part of the SynchroPHY suite of 1GE, 10GE and 10GE OTN devices, the VSC8572 is a low-power, dual-port Gigabit Ethernet (GE) transceiver with two SerDes interfaces for dual-port dual media capability. The device features VeriTime™ IEEE 1588 network timing and synchronization, delivering the industry’s most accurate IEEE 1588 network timing and synchronization timing implementation. It also includes an integrated dual port I2C multiplexer (MUX) to control SFPs or PoE modules. It has a low electromagnetic interference (EMI) line driver, and integrated line side termination resistors that conserve both power and printed circuit board (PCB) space.The VSC8572 also includes dual recovered clock outputs to support Synchronous Ethernet (SyncE) applications. Programmable clock squelch control is included to inhibit undesirable clocks from propagating and to help prevent timing loops. In addition, the VSC8572 also supports a ring resiliency feature that allows a 1000BASE-T connected PHY port to switch between master and slave timing without having to interrupt the 1000BASE-T link.Using Microsemi’s EcoEthernet™ IEEE 802.3az Energy Efficient Ethernet, PHY technology, the VSC8572 supports energy efficiency features such as Energy Efficient Ethernet (EEE), ActiPHY™ link down power savings, and PerfectReach™ that can adjust power based on the cable length. It also supports fully optimized power consumption in all link speeds.Microsemi's mixed signal and digital signal processing (DSP) architecture is a key operational feature of the VSC8572, assuring robust performance even under less-than-favorable environmental conditions. It supports both half-duplex and full-duplex 10BASE-T, 100BASE-TX, and 1000BASE-T communication speeds over Category5 (Cat5) unshielded twisted pair (UTP) cable at distances greater than 100 m, displaying excellent tolerance to NEXT, FEXT, echo, and other types of ambient environmental and system electronic noise. The device also supports two dual media ports and can support up to two 100BASE-FX, 1000BASE-X, and/or triple-speed copper SFPs."