The Polaris-2 series provides the right combination of quality and reliability. A card can be swiped through the reader in both directions and the reader’s microprocessor automatically detects and rejects read errors. The reader has four different configurable output modes (26-bit Wiegand, 34-bit Wiegand, ABA-Clock & Data and ABA-Wiegand), so that readers can be installed on existing systems. The different output modes are obtained by connecting the proper wires during installation, to program the reader. The mode can be changed by simply powering the reader down and rewiring it for the new mode. The “*” push-button on the keypad of the POL-2KP is a dry contact with a 50 mA power rating. It can be connected to an alarm panel or to an intercom’s door call input, for example.