7245C, 7245C/E, 7245D Computer Digital Video System Product Usage: The 7245C, 7245C/E and 7245D are used to electronically record, display, transfer, and store digital video data of behavior related to swallowing in the pharyngeal area for medical and pedagogical applications.
Pentax Medical did not always provide transformers with 9175 isolation transformers are used with 7245C, 7245C/E, 7245D, 9200Cs, 9200Ds, 9310HDs, and 9400s computer systems.
Worldwide Distribution - US Nationwide
https://www.accessdata.fda.gov/scripts/ires/index.cfm?Product=Z-2742-2017