1.Network(RS485/TCP/IP) 2.Regestered users>1700, 3.Record capacity>6,144 ParameterEM/Mifare Access ControllerCHD802A: without internal proximity reader,can be connected to two outside wiegand readers.CHD802B: with an internal EM reader,can be connected to a standard wiegand reader.CHD802M: with an internal Mifare reader,can be connected to a standard wiegand reader.1, Without keyboard or display, ...