When a manual remote control of lock operation modes is reqiured and its connection to the security system is not supposed, it can be used the following scheme:
Switcher SW1 should be the one for the three positions, fixing all positions. In that case in the middle position the lock operates in NORM mode, and when contacts C1 and C4 are closed, lock blocking in closed position is carried out.
When contacts C1 and C5 are closed, lock blocking in open position is carried out. In that case all buttons of lock keyhandles are not functioned. Light-emittng diode VD1 shows door condition and signalling device ВР1 utters sound signal in case of alarm.