A one-channel PXI subsystem configuration utilizes a single NI-4134 pulse generator and PXIe-4135 SMU and requires a connection to the PXIe-5162 oscilloscope, a connection to the PXIe-8880 controller, and a connection to the DUT. This one-channel subsystem can only test one DUT at a time.
The multi-channel PXI subsystem configuration utilizes more than one NI-4134 pulse generator and PXIe-4135 SMU to test DUTs with higher throughput than the one-channel configuration. This configuration requires a connection to a DUT for each subsystem channel. A multi-channel subsystem configuration typically includes four NI-4134 pulse generators and PXIe-4135 SMUs, but can also support two or three pairs of these instruments.