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Securame

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Posts posted by Securame

  1. Posted

    Wow, that is one outdated unit.

     

    That Falcon is a rebranded Dahua, and it is quite an old model. I would not recommend it.

     

    If you want a Dahua, go with it. It should have no problems with ONVIF cameras (at least the ones that follow ONVIF standards, and I am quite sure ACTI does). But I would recommend to get one of the current 5in1 units, where you can use any channel on whatever system you want (analog, CVI, TVI, AHD, or IP camera).

     

    I would suggest Dahua XVR5108H (up to 12 IP cameras).

  6. Posted

    Hi, I have a few questions.

    What is the max number of megapixels a camera can have and transmit over coax with baluns? is it still 2? the distance is less than 100 yards but the wire already exists and an new pull is not an option.

    Is it better to go POE through the coax when the rg59 Siamese power is already there?

    What would I need to connect the power to a POE camera?

     

    You can install as many cameras as you want, as long as you have the available bandwidth.

     

    You need an IP over coaxial adapter, something like this:

    http://www.securame.com/extensor-de-ip-por-cable-coaxial-p-2587.html

     

    Once you have it in place, you need to test the network link to know what is the sustained bandwidth it can achieve. I have used the one I am linking on several installations, and while it says it can only give you 10Mbps bandwidth, I have tested it up to 80Mbps. It will depend on the coaxial cable quality, length, materials, etc.

     

    When you know the bandwidth you can have on that network link, you can know how many cameras and what bitrates you can get. Be conservative. Like if you have a 40Mbps available, do not expect to use 8 cameras at 5Mbps bitrates and have everything work like a charm forever.

     

    With those 2 wires on the siamese cable you could power just one camera; and if you want to have more cameras, I would suggest installing a POE switch there, for which you would need 110/220V.

  10. Posted

    3 years until your first post?

     

    DS-2CE16D1T-IR are 1080p/2MP, while DS-2CE56C2T-IT1 are 720p/1MP. DS-7208HGHI-F1 is a 1MP unit, it does not record 1080p/2MP.

     

    But wait, there is a solution! Somewhere on your DVR menus you have an option to turn on "1080p Lite". That will make your DVR understand the 1080p cameras, while it will record them at just 1MP (960x1080 instead of 1920x1080). You need firmware 3.4.8x to have the 1080p Lite option.

     

    ps. You should have asked BEFORE buying, and would have been told to get a 2MP DVR.

  11. Posted

    What I meant; just connecting something to the HDMI port and goes from the HDMI port to a monitor/TV/whatever, can actually damage the HDMI port. The ones I used were just passive extenders (unpowered; transceptors?)

     

    I know you are not using HDMI extenders; I was. And whatever the technical reason might be, I got to damage the HDMI port on two devices. So yes, I do believe that an HDMI cable might damage it too, whatever the technical reason behind is (which I do not know).

  19. Posted

    If the NVR supports H265 and the cameras are H264, it will just work in H264. But later you will be able to replace the cameras with H265 capable cameras.

     

    If the NVR supports H264 and the cameras are H265, you will have to make sure the cameras are configured in H264, or it will not work (they will probably come by default in H264).

  20. Posted

    Your substream on iVMS-4200 and your camera are not playing well toguether.

     

    When you see the camera big on iVMS-4200 it is using the main stream; when you see it small, it is using the substream. You will have to force it to main stream even when you are seeing it small.

     

    You can also check the substream settings on your Bosch camera, maybe they are set to something that iVMS-4200 does not understand.

  22. Posted

    The HDMI to IP converter I have also outputs video streams over RTSP, do you know of a way to make my DVR accept the video stream as as IP camera over RTSP instead as "ONVIF". You are right in the aspect that my HDMI to IP converter IS encoding the audio as G711a PCM for ONVIF while it encodes to either MP3 or AAC to any other streams such as RTSP, Flash Video (flv), TS, etc, so I am paying special attention to RTSP and maybe I can add the IP camera as "IPCAM" instead as "ONVIF" on my DVR and then maybe I can get the DVR to accept the stream as RTSP?

     

    Your DVR only takes Hikvision and ONVIF protocols, it can not record from an RTSP stream.

     

    If the audio on the RTSP stream is good enough for you, you could buy an NVR that does support RTSP and have it recording 24/7. But I would first try out the quality using a client like VLC before buying anything else.

  23. Posted

    You got it wrong there; in the sense that all the encoding is done on your HDMI to IP converter, and that the DVR has nothing to do here with the quality on the audio.

     

    Perhaps KT&C forgot to add the higher quality .aac codec as an option for audio recording to these KT&C TVI DVR's? Because I checked the ONVIF officlal website, the responsible for the creation of this standard and they said that ONVIF support two audio formats:

     

    KT&C forgot nothing there, since the DVR is not doing any encoding. All the video and audio encoding is done on the HDMI to IP converter, which then sends is as 0s and 1s over your network, and your DVR just receives the stream and stores it on the hard disk without doing any work on that data. Check your converter to see if you have any options to improve your audio, but if there aren't any, you probably will not be able to do much more.

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