Our 3U digital input/output card is a general-purpose data acquisition control card containing 48 digital I/O points. Each pin can be used as digital input or digital output. If used as an output, the point can be read back in for verification. The I/O and power signals are distributed through J2 rear connector. The board form factor, physical dimensions and BUS interface comply with CompactPCI (cPCI) Specification PICMG® 2.0 R2.1.