In the design system M. Central control element for the room. Membrane keypad with call/cancel button. Sounder for acoustic call forwarding. Integrated reassurance/reminder lamp. Setting of all parameters via DIL switch. Connection of ward and room bus. Connection of room signal lights. Installation in flush-mounted double socket. Power supply: 24 VDC. Current consumption min./max. 80/100 mA. To be completed with: 1-M frame, 2-way without center bar 3898xx ATELIER-M frame, 2-way without center bar 3888xx M-SMART frame, 2-way without center bar 4788xx, 4848xx. M-PLAN frame, 2-way without center bar 4888xx, 5158xx M-PLAN real glass frame, 2-way without center bar 4878xx M-PLAN metal frame, 2-way without center bar 4758xx. Material: brilliant thermoplastic, antibacterial. Smooth and self-disinfecting surface with antibacterial effect. Color: similar to RAL 9016. Color: active white glossy.