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I got it thanks for all the answers.

No but i will do that tomorrow. I think its about 12v but my concern is about the one with 20 meter long cable the 13.5v will it void the camera

I have a central power supply (its 30 ampree) all the cameras take the power from the same adapter i have 9 cameras. I just want to know if the 13.5v cause any harm to cameras in the long run everything is fine now. When it was 12v the cameras that are far from the power supply had problems.

There are analog and ip cameras and there is cameras cable from 10m to 300m

Is it okay to give cameras 13.5v constantly? When it was 12v in the night some cameras turned off and other got some abnormal lines now when i made it 13.5v they are fine in the night but will this harm the cameras? Thanks in advance for reading this.

Its working but as you advise i will put an external adapter.

I did the following what do you think?

Is there a way to make channel zero display the ip cameras (the cameras are connected to the dvr).

I have the second generation of hikvision intercom. I was wondering if i can make the outdoor record without NVR like recording on the indoor unit or on a computer or something

Thank you for your reply is there a guide how to make TFTP upgrade and if i make the ip camera ip 192.168.255.x i will be fine?

I tried to uncheck it and check it again but just the ip/domain zero Channel appear and disappear

Thank you for your reply. but, i have set channel zero to appear before i uncheck it and check it again and still channel zero hidden.

I have a hacked camera what can i do. I just managed to change the password the frimware is 5.4.4 and there is no update if i just disable udp ports of the camera everything will be okay?

Thanks you. but, i can't do that because I have 10 cameras and when i want to watch all of them in the same time most of them get stuck and don't move. I don't have enough upload speed 3mbps is not enough for 10 cameras right?

Hello I enabled channel-zero in the DVR but it won't show up on the hik-connect app the connection type is hik-connect domain when i set it ip/domain (locally) i can see the channel-zero but i want to see it on the hik-connect domain connection because i don't have fix ip and i don't want to pay...

Hello, i have ds-kd8003-ime1 and ds-kh6320 the second generation of hikvision ip intercom and i want to connect it to the door i have a rim electric lock which has 2 wires and i don't know to which wires i must connect them. Thanks for your time.

Thank you very much

So it will 100% work?

Btw do you know anything about This

Okay thanks

Is there any firmware upgrades for these two models Ds-2ce16f7t-it3z Ds-2ce16h1t-it3ze Thanks

I have DS-2CV2Q21FD-IW IP camera I want to upgrade its firmware but I'm not sure if does the frimware i found works This is the link the release notes includes DS-2CV2Q21FD-IW (B) Here is the release notes and there is 2 versions IPCTC and IPCG which one to use. Thanks in advance