... frame from 0.1f/s to 25f/s 4. 2 channel alarm input, 1 channel alarm output 5. Multi recording modes:manual, timing ... Channel, BNC , 1.0V p-p/75 ohmVideo Output2 Channel, BNC, 1.0V p-p/75 ohm, VGA x 1Audio Input2 Channel, RCAAudio Output2 Channel ... , RCAAlarm Input2 Channel, Trigger closed without VoltageOpen or ClosedAlarm Output1 ...