For System M. For programmed and time-dependent switching of loads such as lighting or blind/roller shutter motors. Number of switching cycles (on/off, up/down): Switching, dimming, shutter inserts: Per channel: 2 switching cycles / day Central unit insert: Per PL line: 2 switching cycles / day Functions: Preset switching times (in 2 fixed groups: Mon-Fri and Sat-Sun) Menu-guided operation Power reserve >6 hours Reset for resetting to factory setting Simple changeover summer / winter time Individual running time programmable Manual operation possible at any time Selectable arrow key function for buttons or global scenes Switch locally: Electronic switch insert Relay switch insert Electronic switch insert, 2-gang Relay switch insert, 2-gang Local switching/dimming: Universal dimmer insert Control insert 1-10 V DALI control insert Universal dimmer insert, 2-gang Local control of blinds/roller shutters: Blind control insert Global switching, dimming,.