Radio module for installation in the 3xAA battery compartment of gongs or in any other plastic housing. Standby loss only 0.5 watts. 52mm long, 42mm wide and 16mm deep. This radio module is suitable for all gongs that can be powered by 3 AA batteries or an 8 to 12V UC transformer connection and are activated with a contact. The FGM gong module also fits in the much larger battery compartment for 3 or 4 baby cells. The gong module is placed in the battery compartment of the gong according to the operating instructions and connected to the connection terminals of the gong. The gong and the radio module are powered by a switching power supply SNT61-230V/12V DC-0.5A, which is installed in a flush-mounted box behind the gong and requires a 230V connection. Normal buttons can also be connected to the corresponding connection terminals of the gong. There is a rotary switch on the circuit board for programming. It is then set to AUTO (right stop). In addition to one or more radio buttons, radio window/door contacts FTK, motion/brightness sensors FBH and window handle sensors FFG7B can also be programmed. The LED accompanies the programming process in accordance with the operating instructions and indicates radio control commands during operation by flashing briefly. Examples of suitable gongs: Friedland D844, Grothe Croma 100.
