VIEWSONIC ViewBoard IFP8662 86" 4K Interactive Display - Manual (Page 119)

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6. Get FW version example
Assumed the FW version is 3.02.001
Send: 0x 38 30 31 67 38 30 30 30 0D (Get FW version)
Reply: 0x 32 30 31 72 38 33 2E 30 32 2E 30 30 31 00 00…00 00 0D