Phoenix Contact 2304115 The V8 adapter is a device designed to accommodate an 8-channel interface for PLC systems. The interface features six 6.2mm input cards and comes with three different connections: one using IDC/FLK pin strips with 14 positions, another featuring a plug-in connection that can be attached to the terminals of the 8x PLC-Interface, and a third using a screw connection for two positions. This adapter supports eight channels in total, controlling logic is based on the minusschaltend principle.