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25 Thoughts to “I want to make a Dahua IP camera network and I don’t know what I’m doing. What else do I need to complete my system?”

  1. gw65kg

    I’ve done a day of research, and there’s still a lot of basic stuff I don’t understand about security cameras.

    I’m planning on using:

    [DAHUA 4MP HDCVI Weatherproof MotionEye Camera]( x 3 or 5 (I’m still deciding)

    >with Built-in Outdoor Passive Motion Detector: Max 30fps@4MP – 2.8mm fixed lens – 10m/110°detecting range/angle – Max. IR length 20m- IP67

    [DAHUA 5MP Motorised Zoom Varifocal Lens]( x 1

    >WDR 60m IR Bullet Network Camera with smart video analytic IVS + Alarm + Audio 1/2.7” 5Megapixel progressive CMOS · H.265 & H.264 dual-stream. 20fps@5M(2592×1944)& 25/30fps@3M(2304×1296) · Micro SD card

    Can I just record the video feeds onto a laptop with an external hard drive attached to it via USB 3.0? If that’s not possible, which NVR should I buy for the setup I envision? How do I access the NVR to view video–is it like watching a plain video on a smart TV or more like accessing a video app via a computer? I assume I need a router–how do I know which router to pick and can you suggest a few?

    Does it matter that one camera is different to all the others?

    What else do I need? Is there a guide somewhere that explains how this all works? Like I don’t even know fundamental things like how cameras and NVR and router fit together.

    Thank you for any help and direction you can give me.

    1. hanumanCT

      You’ll need a POE switch. Also, NVR software like Blue Iris to run on the laptop. Battery backup on the switch might go a long way too because the laptopnvr already has a battery and can function for a bit without power.

      1. gw65kg

        >You’ll need a POE switch

        With one port per camera?

        >NVR software like Blue Iris to run on the laptop

        [This blog]( says that you have to use a “webplugin.exe” with a web browser to view footage from Dahua cameras. Would that be their own proprietary NVR software then?

        >Battery backup on the switch

        Is that what it’s called, a PoE switch battery? ‘Cause I [searched for it on the site]( and I’m seeing splitters and injectors but no batteries.

        1. hanumanCT

          – One port per cam, one port for uplink, one port for laptopnvr
          – you can do local record to the camera using a flash card, or nvr if you plan on using more than one camera, not sure what the webplugin.exe does or how it would nvr to your laptop

          -it would just be a general battery backup, called a UPS, goes in line to standard wall outlet. APC makes good ones.

        2. brzzzah

          Probably easier to look at the Dahua POE NVR, this means the NVR will power the cameras over the cat5 cables , I’d say the preferred solution for most people is POE switch + a server/pc running NVR software such as blue iris but this will be more complicated to setup if you are unfamiliar with basic networking, plus your pc running the NVR software will also need to be running 24/7.

          The main issue with using these off the shelf NVRs is the security is usually terrible, and exposing it directly to the internet will likely result in your network being compromised.. so if you don’t plan to do remote access this option is fine

          1. gw65kg

            > POE NVR, this means the NVR will power the cameras over the cat5 cables

            Are there two separate cables for power and data transmission, or is it just one cable connected to the camera?

          2. brzzzah

            Just the one, poe means power over Ethernet, your cameras need to support poe, but most up cameras do these days

        3. legendtuner

          Don’t worry about the webplugin at least now. That is used for monitoring the video through your browser. If you have NVR software like Blue Iris or a dedicated NVR you’ll just view the video through that or their app. You can still use your browser to configure the camera without the plug-in.

      2. legendtuner

        Technically a POE injector is what is needed. I just wanted to clarify as there are POE injectors and POE splitters.

        You can get single injectors but once you start buying a couple they add the same price as [this guy]( and that gives you room to add more cameras down the road

        1. gw65kg

          So for a few cameras, I would buy a PoE injector for each, and if I have a lot of cameras, I get a switch, which is like a bundle of PoE injectors. Is that right? What does a PoE splitter do, out of curiosity?

          1. legendtuner

            The device I linked is just an 8 port injector. So you can buy one at a time or just buy the 8 port. An injector essentially just injects power into the line. So it resides between your router and camera injecting power into the line. It only requires one CAT5 run to the camera. A splitter is typically user for older hardware that doesn’t support POE. So you essentially run two lines to the device. One for data and one for power.

    2. legendtuner

      Using a laptop with an external hard drive is not an ideal setup but I don’t see why it wouldn’t work with a two camera setup.

      Accessing and viewing the video depends on which one you choose. For Blue Iris you could.view the video on your PC through the application. They also have a smartphone app that allows you to view remotely. The remote viewing requires you to setup port forwarding in your router (less secure method) or a VPN from your phone to your router (more secure but more complicated method).

      Do you not have a router already? Most modems are routers as well. Choosing a router isn’t necessarily relevant to the cameras more of a what do you need to do. Just about any router on the planet will allow you to setup port forwarding.

      The way it works is you plug your router (or a regular switch if you don’t have enough ports) to the POE injector. Then the POE injector to the camera. Once you get the camera you’ll want to use your browser and access it. It should come with instructions on how to do that. You’ll want to define a static IP address on the camera, preferably one that won’t conflict with the addresses that your router is assigning via DHCP. Then you’ll go to the NVR and configure it for the camera and the cameras IP. From there you should be up and running with the exception of remote access.

  2. TLDReddit73

    I know some will disagree, but you will save yourself major headaches by either buying your Ethernet cables premade or using a RJ45 Keystone Jack module Connector with a punch down tool. Then you use a premade 1ft cable with it. It isn’t as clean looking, but if it’s between walls and ceilings, who cares.

    1. sleepingthom

      Disagreer here. RJ45s are pretty easy and this guy is only going to do 2 cable runs based off his camera purchase. Much easier to run the cable than estimate the length and buy a premade.

      1. TLDReddit73

        I just know from experience that it’s very difficult to get all the wires lined up correctly and it causes major headaches to have to go back and replace the connectors if it isn’t perfect. To each their own though.

        1. sleepingthom

          That’s fair. Idk why we both got down voted. I installed cable for a long time, so maybe that’s why I have no problem doing it… But it’s also how I know how easy it can be and not time consuming at all.

    2. eslforchinesespeaker

      OP forgot a cable tester. which he certainly needs if he’s going to make his own cables. but he probably still wants it even for easier keystone jacks.

      OP also forgot anything he might need to fish his cables. he should give that some thought, as it could result in a need for several more tools.

      1. grizzly_intel

        Eh you can just cable test with any ol laptop, desktop, managed switch, Whatever. If you get 1gb your good. If you get 100mb a pair is wrong somewhere.

    3. gw65kg

      > RJ45 Keystone Jack module Connector with a punch down tool

      Somebody else suggested a punch down tool and I even went and watched a video of it in action but I can’t figure out what it is I’m supposed to use it for.

      1. TLDReddit73

        A punch down connection is where you just put a single wire in a v shaped connection. Then you put the punch down tool over the wire and it forces the wire down into the connection and cuts the excess wire off. It makes a really good connection that is very dependable.

        Most commercial network installations use a punch down block in the network closets.

  3. garoo1

    That first camera you have linked is HDCVI coax not POE rj45 ethernet, it won’t work

    1. gw65kg

      The one that looks like an egg holder? Thanks for letting me know. It’s been difficult to pick the right cameras because, as you can see from the quotes, people don’t provide the full specs.

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