Internal RFID card reader for installation in 2N IP Force 2.0 intercoms. Allows the use of both 125 kHz and 13.56 MHz frequency cards. Two additional relays, two logical inputs and an OSDP interface are available. OSDP Protocol provides higher security than the Wiegand protocol and encrypts the transmitted data. It is compatible with the 2N IP Force 2.0 two-button and pictogram models (9151301CRP, 9151302CR). It also includes a tamper switch to signal when the front panel is opened.