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Can this be set on the floor in a closet or does it need to be mounted? overheating issue on carpeted floor? found US supplier

Help! I have A Dahua DVR with 5 HDCVI cameras attached that suddenly lost all images. The cameras are powered by a 12v 10A power supply with 8 way splitter. I changed the power supply and 2 cameras came back. 2 cameras plugged in causes the power supply to blink. Tested the video input on the DVR by plugging a working camera into into each channel and it works on each. No DVR fault that I can tell. The 3 non-working cameras do not display even connected to independent power supply. Are the cameras fried or insufficient power from new power supply? Datasheet_2MP_HDCVI_Starlight_Varifocal_Bullet_A22DFAZ_v001_003.pdf

No setting come up

First, thank you for all your help. I really do appreciate it. the toggle switches I have found determine which form of video signal is being sent TVI, CVI, VBS, or SD. I previously had a mic direct into the unit and now wish to use the integrated software mic. That is not working so apparently a software issue, something this DVR is not setup for, and not going to work with the built in mics, like me, it's old. Thank you for the warning, I understand the audio legalities in my area and am in compliance with the notification requirement. It did not play audio in the recording from the camera during playback, as the mic in the camera is not a select-able input option in the software. Video is recording fine but the audio component is not available on either camera that has a built in mic. If there is a way to split the audio out of the stream and connect it to the RCA audio input on the DVR then it might record otherwise it appears I'm out luck and will have to stick to the external mic I have now. Thanks again for trying.

Yes, set to hd 1920x1080, h265 compression, 30 fps, and rg59 Siamese cable, under 60ft length, video is good.

Plug external mic back in to rca at back of DVR unit and have audio from monitor. Will not recognize internal camera mic and allow switching to it. I have also updated camera 2 to Pro Series | A22CJN2 also with internal mic. moved it's cable to camera 1 input and still will not switch from local (external mic RCA input on back of DVR unit)

Is there another place to set up? what am I missing?

Doing that, and that is where HDCVi is not an option, only Local. Check box in main and both in substream are checked, g711a as audio format. applied and saved. Camera is Dahua pro series A22DFAZ. That is why it is so frustrating.

Sorry for not making it clear. I was replacing the camera and mic on cam 1 input?

I need help or advice. My Dahua DVR will not accept audio signal from a new camera. I had a working external mic setup with camera 1 on the DVR by using the prescribed Source: Local setting on the camera page (RCA plug on back of unit). I upgraded the camera which sends audio over the coax cable. The manual says to select Source: HDCVI as the audio source. This does not come up as an option. Does this DVR accept audio over the coax?

You could post a solar light to trigger at the road as they enter lighting the vehicle and use a separate battery powered camera or a separate battery and ir illuminator and several cameras pointed at that lighted location. Light might make them pause for a good shot. but I would definitely separate the illuminator from the camera location to secure the camera location. you will need several batteries. Realize that ir will not give true color where a solar powered flood light will. how far are you from any power source? IR illuminators are relatively cheap, as are lower res long range cameras with 5 -50 mm lens. I would focus it on only the width of the rd. pick up the back of the vehicle will give better luck on plate reading and low angle also to cut head light glare. possibly put light source on one side of road to focus attention there and camera without ir further back or and/or on the opposite side. hide camera and power in stump, etc. or tree. any curves in path? catch them as they come around it. good luck

Thanks, I was going to run cat 6 to the new ones and may change them out later 1 at a time. Any recommendations on specific dvr. I was looking at the dahua hcvr7808. A few questions though ? 1- What format are the video file recorded in? 2- what resolution playback? 1080 correct? 3- What is the largest IP camera resolution mp? 4- limit to frames rate per camera? or overall? 240 ? where to get in US?

I need to update and expand my system. I have an old 4 camera analog system. I am looking to add at least 2 more cameras now and and replace the DVR and replace others later to all Megapixel cameras. I am looking at 8 channel dvr's. I do not want to replace the Siamese cables or the existing cameras at this time. With a moderate budget of $1500 would it be wiser to go with a hybrid IP/analog dvr and use baluns over the existing Coax, or go with analog/HD-TVI/IP or Analog HD-CVI/ IP setup to use the existing cameras and add IP new ones over cat6 cable upgrading the existing to CVI or TVI Cameras later. I have not found a dvr that will allow me to convert to all channels IP and still have the 4 analog for now. From what I understand IP give me higher MP cameras where HDTVI and HDCVI limit the resolution to 2mp. Direction in which way to go would be. appreciated. Need: 8 channel dvr with 4 analog to upgrade to all MP option1: 8 channel Hybrid IP analog DVR option2: 8 Channel Hybrid Analog/HDCVI/IP DVR

I am researching dashcams for the car, one with all the bells an whistles for the father-in-law. He is looking for my recommendation and I will be getting the same one, whatever I like it. So what do you have/ like and dislike and should avoid? I am reading that some have big gaps in segments between recording. I kind want the black box aspect with gps, speed , direction sensors etc. Thanks in advance

Sorry for not getting back about this, The camera was toast. Received the new one the next day and sent the defective one back. The new one is working fine. It set up a lot easier this time. Gesualdo