Hi
Does any of you know if at the DAHUA SD49225T-HN camera it is possible to attach an white LED light illuminator that turns on when the camera detects motion? If yes, how make to turn on the illuminator?
Do you know what electrical current is transmitting via the alarm out ? V...mA..Yes,.....
Use the alarm out to trigger a relay, which in turn turns on the illuminator.
Do you know what electrical current is transmitting via the alarm out ? V...mA..
ThanksAlarm out ports are typically an open drain transistor, that grounds the pin, so it does not supply power. it supplies ground for the circuit from the source. You need to know the max voltage and current the FET circuit in camera can sink, meaning you also need to know the power on the source end you want to control. This link may help....
IP camera installation - how to use Dahua alarm input/output
Thanks
Is this link also true for this SD49225T-HN camera model?
Or you could just get 1 of these
POE Flood Light with ip camera pass through...
I've read through the first 20 or so pages of this thread, but am still trying to determine what the differences are between this camera and the SD592225U-HNI? From what I can tell the differences in terms of functionality are intelligent autotracking, faster pan speed, and size.
What exactly is intelligent autotracking? I noticed that the 49225T lists auto-scan and auto-pan as features on the product page. Is that not the same as autotracking? If not, what is auto-scan and auto-pan?
If i want the camera to automatically track moving objects as they go by (ie: cars, people) would I need the intelligent autotracking feature of the 592X or would the autoscan and pan of the 492X suffice?
Sorry, I am a bit of a PTZ noobie.
The SD592225U-HNI has autotracking, which would be what you need to track moving objects as the pass by.
Autoscan and pan, is a program you set up in the camera, to do based on a schedule or other triggers. It won't stop on an object and track it.
Autotracking is a gimmick, it's not reliable at this point in the SD592225U-HNI. In SOME situations, folks have been able to get it to work satisfactory. You are better off with more than one camera covering the views you need instead of a PTZ.
Thought I'd share yesterday's spectacular star travel timelapse recording. This is in Middle-TN where the closest neighbor is over 1 mile away - and there is zero light pollution. I set the shutter speed to 1 FPS, HCL, and IR off. Recording is frame per minute.
Thanks for the info. I was just reading that other thread on the SD592225U-HNI and did come to the conclusion that autotracking was not working that well.
When you say autoscan and pan could be set based on other triggers, does that mean I could trigger the camera to move based on motion detection from other cameras? What about automatically zooming in or panning towards an object when there is motion in the frame?