32-Channel, ±30 V, 16 Sink/Source Inputs, 16 Source Outputs, Bank-Isolated Digital I/O Device—The PCI-6518 is an industrial digital I/O interface, with two banks optically isolated channels. The device is ideal for industrial control and manufacturing test applications. The PCI-6518 module is an industrial digital I/O interface, with eight banks of isolated channels. You can wire each input bank in a source or sink configuration. With programmable power-up states, you can configure the initial output states in software, to ensure safe operation when connected to industrial actuators. If a computer or application fault occurs, the PCI-6518 can use digital I/O watchdogs to switch to a configurable safe output state to ensure detection and safe recovery from fault conditions.