Siemens FCA2005-A1, A5Q00014866 Sounder module With the sounder module, it is possible to split a collective horn line onto 4 individual lines. Each line controls and
Siemens FCA2002-A1, A5Q00009923 RS485 module (isolated) Module for periphery devices with RS485 interface, e.g. for FAT (GER). Plugged into the backside of the operating unit.