Complex sentence: The HomePlug AV2 specification was introduced in January 2012, it is interoperable with HomePlug AV and HomePlug GreenPHY devices and is IEEE 1901 standard compliant.
Split into simpler sentences: The HomePlug AV2 specification was introduced in January 2012. It is interoperable with HomePlug AV and HomePlug GreenPHY devices and is IEEE 1901 standard compliant.