... ModeManual, Schedule(Regular(Continuous), MD(Video detection: Motion detection, Camera blank, Video loss), Alarm), StopVideo Detection & AlarmTrigger EventsRecording, ... Fast play, Slow play, Next file, Previous file, Next camera, Previous camera, Full screen, Repeat, Shuffle, Backup selection, Digital zoom ... control, 1 for backupRS232Dahua keyboard, PC communicationRS485PTZ control 4 channel h.264 dvr