... 1 channel alarm output 5. Multi recording modes:manual, timing, alarm, motion detection6. Multi control modes: mouse, front panel, ... remote control, network 7. USB interfaces 8.4 channel playback or single channel playback 9. Support ... /75 ohm, VGA x 1Audio Input2 Channel, RCAAudio Output2 Channel, RCAAlarm Input2 Channel, Trigger closed without VoltageOpen or ClosedAlarm ...