LenelS2 S2-PC-0025 Application Blade is a two-reader interface motherboard with 2 Readers, 4 inputs and 4 outputs to support a wide range of devices. Up to seven LenelS2 Application Blades in any combination can be supported by a Network Node. LenelS2 Application Blades are easy to install – Network Nodes automatically recognize and address them without jumpers or switches. Power and communications are delivered to every LenelS2 Application Blade via a ribbon cable bus, and the blade supplies 12VDC, up to 250mA, per reader.