Demodulators can take the form of plug in modules housed in 19" rack standard caseframes. For systems greater then 4 channels this is the usual configuration.
(Click on thumbnails to enlarge)
Benchtop 19" rack
For large systems, and applications where a benchtop style of demodulator readout is required, versions using the popular standard of 19" rack 3U (150mm high) caseframe is availible.