The PISO-725 is a 16-channel digital input/output interface board for PCI bus computers. It can be installed in a 5 V PCI slot and supports true “Plug & Play” to automatically obtain I/O resources. The PISO-725 has a single DB-37 connector, and provides 8 electromechanical relay outputs and 8 isolated/non-isolated digital inputs. The digital inputs can be set to either isolated or non-isolated via a hardware jumper. Each of the digital inputs will generate an interrupt signal if the state is changed, which is very useful when monitoring for contact closures/openings as it is not necessary to continuously poll the inputs.