VingCard® Elevator Multi-Output Controller (MEC). RFID Elevator Controller for VISIONLINE systems are designed to fit into elevator panels and can be operated off- or online. 7-8 relay outputs to selectively enable the elevator call buttons is delivered as standard. Interoperable with 13,56 MHz technologies (MIFARE® [ISO 14443-A], ISO1443-B, ISO 15693 and NFC, among others) with anti-counterfeiting VingCard® codification. Can also control different devices such as electric strikes and motor locks.