... connect camera ,preset points monitors matrix controllercctv central controller av controllerHV 32163216 video matrix switching,32×8 ... that cruise everywhere quicklySupervise 32 route alarm input,controller supply2 alarm relay output32alarm contact table,connect camera ... 16256X16256X825616YY205sets4uNote 1:the keyboard NO. of listed matrix controller is HV2201Note2:each RS485 drive may control 32 long ...