PXM 4000 / 6000 / 8000 Series

How do I tell if my Power Xpert Meter 4000 / 6000 / 8000 is a first generation model or a second generation model?

What communication protocols are supported by the PXM 468K Series?

How does the Power Xpert 468K Series differ from the IQ Analyzer?

Does the Power Xpert 468K Meter capture current waveforms?

How do I download stored waveform captures from a PXM 468K to a PC? What hardware and software do I need?