R6 (2X22FWD, 2X42FWD, 2X52)

2X22FWD, 2X42FWD, 2X52
R6 series firmware - see models list alastairstevenson
R6 series firmware - see models list IPC_R6_EN_STD_5.5.53_1807
Hikvision R6 firmware
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