Ethernet Remote Master module, for Ethernet remote I/O on a 10Base-T network at 10 Mbps. Must be installed in a local base, with a D2-240, D2-250(-1), D2-260, Do-more H2 series or H2-WPLCx-xx CPU module in the CPU slot. Ethernet cable connects to H2/H4/T1H-EBC(100), GS-EDRV100 modules directly or via Ethernet hub(s) (cable not included). (Not compatible with D2-230 CPU.)