2 readers and/or keypads. 2 outputs for locking. Adding 2 doors to CTV900A. Up to 3x CAA470A per CTV900A. E-bus connection with CTV900A up to 1000m. You can expand your system with the CAA470A. Thanks to E-bus technology, any expansion module can be located at a distance of up to 1220m from the CTV900A. This leads to a reduction in the cost of cabling in the field, as only one cable needs to be connected to the CTV900A. The readers, keypads, doors, contacts, RTE module, and reader outputs can be connected locally to the CAA470A by installing the expansion module near the doors. 2 readers and/or keypads. 2 outputs for locking. 4 inputs (door contacts and RTE modules). Adding 2 doors to CT-V900-A. Up to 3x CA-A470-A per CT-V900-A. 6 outputs (red and green LEDS + buzzer). E-Bus connection to CT-V900-A up to 1000 m. Supports Wiegand, ABA Track 2 (magnetic strip) and BCD (keypad) communication formats. Detailed LED display. Interlock outputs : Relay: 2 "C" shape dry contacts of 5 A / 30 V DC - NO/NC. Outputs : 6 - 25 mA transistor outputs.