The Agilent 34980A Switch/Measurement Subsystem is a very good lower cost alternative to VXI and PXI for systems with up to 1120 two wire channels (two 34980A mainframes). The 34980A is optimized for low to medium complexity/speed test applications and can be viewed as a bigger, better, and faster version of the highly successful Agilent 34970A with many usability enhancements.