The 1763-L16AWA belongs to Bulletin 1763 series of products from Allen-Bradley. There are a total of twelve discrete input channels on this module. Each of these channels requires 120 volts alternating current. There are also two analog inputs, each with an input power range of 0-10 volts direct current. And lastly, this module features a total of six relay outputs. For communication, this module comes with one Ethernet and one RS-232 port.