The interface C14 is an external hardware interface used to connect the security control panel`s telephone communicator with the communicators G10 (G10D, G09), E10, T10. Communicator receives information throughout interface C14 and resends it to the monitoring station. Particular communication channel depends on type of transmitting module. An algorithm of alarm transmission is set by the security control panel. There is no need to configure or program the interface C14.