Microgarde® II standard without power supply. 210 x 135 x 47 mm. Maximum of 4 readers using TDSi EXprox, optica® and Digital Microcard readers when used in a read-in read-out configuration. Alternatively 2 readers equipped with industry standard clock & data (ABA track 2 emulation), 26-bit Wiegand and HiD standard 37-bit (H10302) output formats. Inputs: 4 in total; 2 used per installed door. Outputs: 2 (30 V, 2 A rating) in total; 1 used per installed door. Communications: RS-232 with built-in converter to RS-485 for downstream units. TCP/IP.