2215.5 Image/Alarm-outSelect one monitor channel video and then click Image button in section 9, the interface is shown asFigure 5-13.5.5.1 ImageHere you can adjust its brightness, contrast, hue and saturation. (Current channel border becomesgreen).Or you can click Reset button to restore system default setup.Figure 5-135.5.2 Alarm outputHere you can enable or disable the alarm signal of the corresponding port. See Figure 5-14.Figure 5-145.6 Zero-channel EncodeSelect a window and then click zero-channel encode button, the interface is shown as below. See Figure5-15.