AB8816 series full duplex multiplexer features multi-picture display, video motion detecting, video loss detecting, external alarm trigger, VCR record/replay etc. It is one of the digital security control equipments working with VCR recorder together. AB8816 provides two monitor output ports, and multi-picture displayed on main monitor screen, while a single one on its subordinate. AB8816 has capabilities of OSD character addition, and the date, time, alarm and video loss state, and camera label as well being displayed on screen. Video motion detect range and sensitivity, record method and time, control protocol and band rate, picture lightness, chroma and resolution and parameters can be set and modified by screen menu. AB18816 has capability of duplex procession, which enables multi-picture monitor or replay while recording. The picture lost video signal is automatically jumped. The information of video signal losing or recover with cue sound is recorded for search afterward. AB8816 supports ROBOT and HISHARP control protocol, and it can be connected to PC or AB60-882M/884 macro keyboard. Both the pictures of local processor and those of the other side can be displayed by linking two multiplexers.