Interface element. RSF connector according to IEC 603-1/DIN 41651, 50 poles, tension clamp connection. Passive interfaces for signal transmission of a flat cable connector equipped with tension clamp technology according to IEC 603-1/DIN 41651. The most important features are: group with 10 to 64 pole connectors, one-to-one electrical connection between control and field terminals, extremely compact modules for mounting on standard TS 35 or TS 32 mounting rail, and a long locking hook.