Readme for nk20190131NSA Aplies to models: BC820H1 BC820H1-SFP BC820 BC820-SFP BC820EXP BC820MP3 BC820MP5 BL820M1IR BL820M1IRMP5 BL810F1IR FD810V1IR FD820M1 FD820M1IR FD820M1IRMP5 IFD820V1 IFD820V1IR CD820F1 CD820F2 CD810F1 HSD820H1-EP HSD820H1-IM HSD820H2-E HSD820H2-I HSD820H3-E HSD820v2H3-I Version information: userland nk20190131NSA main M88D-8886 switch S8AD-9061 module H1 (ITN) CE815-N1001 module H1 (ITN2) CEC0C module H2 (ITN) CE815-N2001 module H2 (ITN2) CEC0C-N5001 module H3 CEC0C-F3001 DSP Param PEC0F DSP DE618 MCU M140728 Version history: nk20190131NSA: FIX: Stream 2 goes down after operating for a period of time. nk20180606NSA: ADD: Add watchdog function to prevent incorrect network connection. nk20171012NSA: 1. Bug Fixed for NTCIP - Iris could not open when iris is close. - The exposure setting would be changed and cause the image white out after - switching to auto-iris and auto-focus. - Does not work with TCP. 2. FTP filename support up to 36 characters including file extension