The LM-7000H Module Series is designed for the PT-G7728/G7828 Series and MDS-G4012/G4020/G4028 Series IEC 61850-3 Ethernet switches. These modules provide additional flexibility to supported switches by letting you add 4 Gigabit Ethernet or PoE ports per module, or 2 Gigabit PRP/HSR ports per module.