Archive for the ‘ CCTV Articles ’ Category

How to configure FTP to backup your Recorder

Written By:
Tuesday, April 5th, 2016

Imagine a situation: your DVR or NVR has been stolen. It is in this situation where learning How to configure FTP to backup your Recorder is necessary.

You’ve gone in the right direction to protect your property by purchasing a CCTV camera system. Having security cameras visible is enough in most cases to deter criminals from trying to gain entry to your home or business, but what happens if criminals still decide to access your property? If your security cameras are positioned well the footage you need to identify him or her will likely be recorded so the authorities can hopefully make an arrest.

However, if the criminal sees the cameras system and is still daring enough to break in, he or she will likely look for the DVR or NVR recorder and to try and make sure no evidence is left behind.

But fear not, there is something you can do to retain that footage even if the DVR or NVR is stolen and that is to have the footage from your recorder backed up using the FTP feature.

How to backup your security recorder via FTP:

In order to use this feature, you first need an FTP server. A computer on the same network as the DVR or NVR that is always on will work perfectly. I recommend FileZilla which is a free FTP server software that works on Windows and can be downloaded at Once installed, you need to set up your FTP directory, rights to write data to the folder where the footage will be stored, groups and accounts.

Set up your FTP directory, rights:

Open Groups settings and Add a new Group. (NOTE: To Any user that belongs to a group, settings will be overridden by the groups settings.) Type any name for your group and click OK. Click on Shared folders and a folder path where the footage will store. From the Files and Directories option click on ALL the options available, including auto create. Click OK when done.

Next click on Shared folders and click Add. You can then browse to where you want the footage backed up to as shown below.

Click on the user’s icon to create a new user. Click Add to configure its settings such as password and group. Click Ok when done.

Pic 2Pic 2

Pic 4

The FTP is now all set up. All you need to know from here is the IP address of the computer it is installed on. You can obtain this by going to your start menu > run, type “cmd” and enter to open a command prompt. In that window type “ipconfig” and hit enter. Your IP address will be displayed. Take that information down as we will need to enter it into the Recorder’s FTP configuration which we will review next.

Access your DVR’s or NVR’s web service by typing the IP address of the recorder into your Internet Explorer address bar. Then click the Setup tab and the storage category. Under that click on Storage and then the FTP tab. Click the checkbox to enable the FTP feature and enter your computer’s IP address in the Server IP field. By default, FileZilla uses port 21 so you can leave that field alone.

Enter the username and password for the user you created in FileZilla. Remote Directory can be left blank as you already choose the folder where you want the footage to be backed up to. Finally, you need to choose the channels you want to backup, what type of files (MD, Regular or Alarm) you want to backup and the weekdays. NOTE: If you want to backup only motion event to the FTP, then the Recorder’s schedule need to be configure as motion for it to work.

The period setting is for you to select the time period of the recorded files to be uploaded. In another words, If you want to only backup footage of your working hours, lets say from 9AM to 6PM, then you will need to configure the period assuredly. The second period is in case you would like another type of recording type, for example regular recording.

You now have everything set up that is needed to have an additional backup of your footage for more piece of mind. If the DVR or NVR is stolen, you will still have the footage you need to hopefully lead police to an arrest.

Now you might be wondering, “What if the computer is stolen too?”, or “What if I don’t have a computer at that location?”. Well, you can use the FTP feature to also back up footage offsite. Say for example you want to back up the footage from the DVR or NVR at your business to a computer you have at home. The setup is relatively the same, so follow all of the previous steps for installing FileZilla on your home computer, and the same steps for setting up the FTP feature on your DVR or NVR. The one difference will be for the Server IP setting in the DVR’s configuration. You want to set this to your home network’s external IP. You can see what that is by visiting from your home computer. Use the IP address given to you on that site for the Server IP field in the FTP options.

The setup is almost complete, but you need to open up the FTP port on your home network’s router so the DVR can find the server. Refer to your routers documentation on how to set up port forwarding. You will need to forward TCP port 21 to your computer’s IP address. Again, this can be found by running ipconfig from a command prompt. Once this is done, you can confirm your port forwarding settings are working by visiting and testing port 21. It should respond with a successful message if everything is set up properly. You are now set up, but keep in mind the backup process will need a lot of bandwidth. You will need sufficient upload speed from where the DVR is installed, and download speed on the network that has the FTP server. You can test your speeds at If your speeds aren’t great, you can always be more selective in what you back up. You can just backup a certain camera, day of the week or time periods.

If you want access to your footage from anywhere, or don’t want to run your own FTP server, you can use a cloud-based storage solution. Any cloud storage solution will work fine that has FTP access. The account settings for your cloud storage service will provide you with the IP address, account and port needed to set up your recorder’s FTP backup feature.

You now have three different ways you can enable FTP backup of footage from your DVR or NVR. This will provide you with additional piece of mind, as your footage will still be available if the DVR is stolen or destroyed. You should still try to conceal the location of the DVR if possible, but if the criminal sees the cameras he will likely try hard to look for it. With the FTP backup feature of SecurityCameraKing’s DVRs and NVRs, you don’t have to be out of luck if it is found.




How to configure and connect a Prime IP camera with an Elite NVR

Written By:
Friday, March 25th, 2016


Here at we focus on providing the best tech support possible and now with our new prime line-up, it is necessary to demonstrate how easy it is to work with this new line. In this article I will demonstrate how to integrate our Prime cameras with our Elite NVRs. Noticed that the integration doesn’t work the other way around (ELITE IPC with PRIME NVRs).

All of our Prime IPC as well as all of our Elite NVRs support the ONVIF protocol. To start, you will need to configure a few things in the camera to allow this integration to work flawlessly and it is required that you set this up prior to connecting the camera to any of the Elite NVRs. All of our Prime cameras come setup with the following IP address; You will need to use our SADP tool to find the camera on the network and change the IP address parameters. After the camera has been connected to the network, allow a minute for the camera to boot up and show in the tool. Open the SADP tool and a list of devices will show in the network. Refer to the picture below:

IPC IP Change

After finding the camera using the SADP tool, click on the corresponding ID and on the right side of the application options click on “Enable DHCP”.  Type the admin password of the camera which by default is “admin” for username and “12345′ for password. Click on modify when done and a successful message should pop up.

IPC IP Change 2

Click on the refresh button to see what IP address you have acquired. After you know the IP address you can simply click on the option “Enable DHCP” to set the camera with static IPs so it will never change. You can now access the camera’s web service and configure the rest of the settings such as motion and encoding settings. You might need to configure your browser to access the camera. If you are using Internet explorer then you will need to set certain things under tools. Follow this link to learn more about these settings. This  applies to virtually all network devices that required an Activex control to be download first in order to access the Web Service. For this demonstration I will be using safari on a Mac computer running El Capitan OSx. Type the IP address of the camera and a login page screen will appear:Screen Shot 2015-10-05 at 4.52.33 PM

Type the username “admin” and the password “12345′ to access the cameras interface


Screen Shot 2015-10-07 at 3.15.11 PM

From here you can see the video streaming from  the camera. You can click on Sub Stream or Main Stream to change the fluency and picture quality. Opening the camera either way will not affect how the camera records but it will affect how much bandwidth you use in your network for every given camera stream that is being viewed over the network. Go ahead and click on configuration. In this section you have basic settings or advance settings. Select advance settings and click on “Time Settings”. Make sure your time is set manually and it shows as follows:

Screen Shot 2015-10-07 at 3.37.25 PM


Go to the “DST” Tab and make sure you configure these settings according to the current year. Every year is different so you most check how it is at the time of configuring this setting. At the time this article was written the settings for 2015 are as follows.

Screen Shot 2015-10-07 at 3.40.04 PM

The next step is to configure your resolutions. Although you can change this from ALL ELITE NVRs, why not change it? I will set this Ip camera to 3 megapixels for the main stream and D1 for the sub stream. The settings are as follows:

Screen Shot 2015-10-07 at 4.01.44 PMScreen Shot 2015-10-07 at 4.09.25 PM

Click on the Image settings and it is up to you to adjust where the time and camera overlay is displayed in the video. You can click on the time and drag it to the location you would like to appear and you can do the same with the name of the camera. By default the camera name will be displayed as “Camera 1”. It is recommend that you change it so it is more intuitive and besides, you cannot change it from the NVR. See picture below:

Screen Shot 2015-10-07 at 4.49.03 PM

You can also set the time to be displayed in a 12H format, change to display week days in the OSD or turn them all off as a whole. Go now to Event to enable motion detection and configure the region in the area. In this section you will need to click on “Enable Motion Detection” , then click on “draw area” button to select the region that will activate motion. See picture below:

Screen Shot 2015-10-07 at 5.24.23 PMScreen Shot 2015-10-07 at 5.32.56 PM

After “Draw Area” is enabled, drag your mouse across the picture to create the region being set. The result should be as below:

Screen Shot 2015-10-07 at 5.35.34 PM

Click on “Stop Drawing” and adjust the sensitivity of the camera. The higher the number, the more sensitive the motion setting will be. Scroll down and select what time motion will be triggered. By default it is set to 24 Hours so you shouldn’t have to change anything. Click save after you are done. See pictures below:

Screen Shot 2015-10-07 at 5.24.47 PM

There are other methods of triggering such as “Line Crossing Detection” and “Intrusion Detection”. They should NOT be configured at the same time that motion detection is configured. I have tested these 2 features and so far they work with an 85% accuracy. Now that we have configured the camera completely, it’s time to connect it to the NVR. For this demonstration, I’m using an NVR-ELE8M-P4K. The unit has built-in POE and I will explain both ways that you can connect the camera to this NVR. The first method you can use to connect to the camera is over the network. One thing we need to know is the IP address of the camera and NVR as they must be in the same network in order to successfully connect the camera to the NVR. Assuming both devices are in the same ip range, we will log into the NVR and proceed to add the camera to the NVR. Log into the NVR and go to “SETTING>CAMERA>REMOTE”

NVR Device Search

Click on the “Device Search” button. Once you have found the camera(s) you will have an option to check one or more cameras to add to the NVR. Click on “Add” to attach the camera to the NVR and begin to stream. Noticed on the bottom of the  Device Search window the camera will show a status. This status naturally should be green, indication that the camera is streaming correctly and communication with it is successful. It is possible sometimes that the camera will never change its status and we might need to check a few things. Make sure the camera is ON by checking connectivity between your PC and the camera. You can either execute a ping command from your PC or simply run the TOOL FINDER from your PC. If you successfully ping or find the camera on the network then it will most likely be an issue with the authentication (password) of the  camera. Remember at the beginning of this article I explained the camera’s password is 12345; unless you change it to default “admin” then it needs to be changed in the NVR when you add the camera. To do this, click on the pencil to edit the connection settings of the camera.

IP Onvif Change

After you change the password to 12345 then the camera status should have changed to active. See picture below:

IP Onvif status Change

At this point you should be able to see an image on the NVR and you should be able to see the camera triggering motion recording at the local interface of the NVR. To be 100% sure everything is working good, check footage after a motion test in the NVR, so we know that the NVR is recording when motion events happen. See Pictures Below:

IP Onvif Camera image

motion Events

The other way we could connect the camera is over POE built into an NVR. If you decide to use this method over the other, the settings of the camera need to be configured as mentioned before; the only thing that will change is the IP address that you assign in the camera. As you might know, all of our Elite Series NVRs that have built in POE come with a default IP address of See picture below:

Screen Shot 2015-10-14 at 4.28.01 PM

The idea behind having a built in POE NVR is to reduce broadcast over the network from all the cameras and also to make the recorder plug and Play. NOTE: Plug and Play connections over the built in POE is only possible with Elite Series IP Cameras and not ONVIF. To configure our Prime IP cameras to work over the POE of the NVR, all you need to do is assign an IP address to the camera within the POE’s Range. For example, you could assign this camera an IP address of, with subnet mask 255.255.255 and default gateway You could also change the IP address of the POE to something you may have seen before, like 192.168.x.x which it cannot be in the same range as the NVR’s LAN ethernet port. Default IP of the NVR is

The next and final step is to connect the camera to one of the ports of the NVR’s POE and allow at least a minute for the camera to fully boot up. Go to the NVR’s SETUP>CAMERA>REMOTE DEVICE>MANUAL ADD and the following window will display:Screen Shot 2015-10-14 at 4.47.32 PM

In this window, change the manufacturer to ONVIF, the IP address that we decided we were changing it to, leave the username as admin and the password if you are using the camera’s default password then type 12345 as shown below:

Screen Shot 2015-10-14 at 4.47.53 PM

Click Ok then the camera will start to stream video. Following all of these steps you will be able to integrate our Prime series cameras with our Elite Series NVRs. If you have any questions contact us at    866.573.8878   































Buying a CCTV system and what you should know part 2

Written By:
Thursday, March 24th, 2016


Now this is a continuation of a previous article…..

In this article buying  a CCTV system and what you should know part 2 we are going to cover the new High Definition over coaxial market.  With this new technology you have a lot of great features that have helped to push the old analog technology to the way of the eight track tape, cassette tape, VHS, and the HD DVD.  All of these previously stated technologies, while good in their time were replaced by better, more efficient technology.  With new High Definition over coaxial technology, you currently get the ability to send 720p and 1080p video signals down the same line that you used to only be able to send analog signals down.  Now the reason I say you can currently get 720 and 1080, is the fact that it is being worked on to be able to send up to 8MP or 4K resolution up these same cables.  Now this technology is not available in the United States at the moment, but there are plans to get it here in the second quarter of 2016.  This will be a game changer for the coaxial cable installations, but will always take a back seat to the resolutions that IP (Internet Protocol) systems will be able to produce.  The reason for this, is that the data limitations of coaxial cable will always be the same, where there is essentially no data limitation with Cat6 cabling.  I say essentially as we have not reached a limitation on a single camera run, now if you add a large amount of cameras that funnel into a single switch and then funnel down the pipe you will have a data limitation.

I have previously described in another article the differences between the newer HD over coaxial technologies in articles such as,  “TVI vs. CVI, What is the Difference?“.  If you want a little more in depth information on HD over coaxial cable CCTV systems, I highly recommend reading to help better understand the technologies.  I am only going to cover some of the basics of this technology and those articles go in depth as to the differences between the competing technologies.



One of the nice things about this new technology is that you can utilize your existing cable infrastructure and obtain the High Definition video quality from your CCTV System.  Now there is a caveat to using your existing cabling is that if you have old pre-made cabling you will be limited on the highest video quality you can get.  For example, if you do use this cabling you will want to stick with 720p setups or your image quality will suffer.  This being said, your video will still be better than your old analog system could be.  With a DVR (Digital Video Recorder), not like your cable DVR,  you will run all of your camera cables all the way back to the DVR.  This is called a home run as the cables go from the point of the camera location all the way home to the DVR.  At the DVR location you generally will have the power supply to power the cameras, but on longer runs some installers will opt for power supplies closer to the camera location to prevent voltage drop.  With voltage drop you may get a camera to function, but the question is for how long.  The industry and electrical standard is for no more than a 10 percent drop in the voltage from it origin.  So if you are sending 12Vdc, you should have no less than 10.8Vdc at the camera side, for the camera to operate.  If you are exceeding this, then you may want to think about upgrading your power supply to a 24Vac supply to increase the distance.  If you do decide to need to upgrade your power supply make sure you either have dual voltage cameras which can handle 12Vdc or 24Vac or you simply use a 12Vdc camera with a down converter at the camera to convert the 24Vac down to 12Vdc so the camera can handle it.  If you simply use a 24Vac power supply and hook a 12Vdc camera up to it, you will fry the camera and be stuck buying another camera as they will not be covered by any warranty.

Now all of this being said, don’t get scared! This was said to make you aware of potential risks and inform you. Another very nice thing about using a DVR setup is the fact that there is literally zero video latency associated with it.  This may not be something most people are aware of, but video latency is when there is an object moving in front of the camera you see it in real time.  With an IP camera setup you can get some video latency and depending on the amount of cameras and bandwidth being used internally this can be from as little as a fraction of a second to as much as a couple of seconds.  This is highly important in a retail environment especially if you are following someone or something around trying to make sure there is no theft occurring.  You don’t want to give the perpetrator time to get away before you catch what they are doing.  With the DVR setup, this is a nonissue since the video is being encoded and decoded at the unit itself allowing for a live view of your location.  Now if you are remotely viewing any system from analog to IP you will deal with latency as it needs to be transmitted remotely and captured and re-outputted to the source you are viewing.  You will have several factors in this type of a scenario.  You will have the upload bandwidth at the site you are remoted into, the download speed at the location of the remote viewing, and any other network traffic across the World Wide Web.  For most people, they do not expect that when they are watching remotely to have it 100 percent real time, but there are some that have to have it as real time as possible, and for those people I suggest a direct fiber link between locations to prevent this as much as possible.  I have only begun to scratch the surface, so check back for a continuation of these articles.


Buying a CCTV systems and what you should know part 1

Written By:
Tuesday, March 15th, 2016

I have recently been asked to do an interview to explain some of the basics that a novice consumer should look for in a security system.  With this I have decided to write down what I would normally go over with a customer who are new at this, and who are looking to get a CCTV system to provide them with coverage that they will need.  When you are looking at all the different systems that are available on the market, there are many things to look at besides all of the pretty pictures or low prices you are seeing.


Big box retail

When you are looking for a camera system, you will see tons of bargain systems on the market.  Whether it is from a big box store or a too good to be true system on Amazon or Ebay.  A lot of the systems you find at these big box retailers are made using technology that we used to sell a few years ago.  Many of the “Name Brand” inexpensive systems you see on the market are using these older outdated chip sets.  Basically what these companies do is go to all the factories and say, “I am looking for a system with X amount of cameras and we want to be at Y price, and we are looking for Z quantities of these systems.”  The factories will look at what chips they have excess of and housings they also have plenty of to supply these customers.  When this occurs the company now has a very inexpensive system that they can unload on the general public for a “Bargain”.  This often times reminds me of what Dell used to do when they were “Custom” building computers.  I had one of their computers back in the day and I called them to help me with getting some drivers.  The technicians could not give me an exact driver as they could not narrow down what components were actually in the machine they built for me since they would do the same type of things with their suppliers.  Try calling some of these companies and have them support the products you purchased from them and it will likely be that they won’t know exactly what the components of the system you bought from them are, which makes supporting the product extremely difficult.


Cheap or Quality?

Now this is not the same with all of the systems you will find, but for a large portion of them you can never be sure.  One saying that has always stuck with me is, “You get what you pay for!”  and that can be very true with technology.  If the components of the items you purchased are “cheap” then the final product will be cheap.  There is a huge difference with getting a good deal on a system and buying a “cheap” system.  I have many customers who tell me that they will just go purchase one of these cheap systems and I tell them to keep my information so that when they need footage and the quality is so poor that it does them no good to call me and we will set them up with a system that will do what they need.  Every customer that has done this and then needed the footage, has called me back and told me the situation.  They ended up spending more money in the long run by having to completely rip the “cheap” system out and put in a new solid system.  Now, not every person that has a system will need the information from the system.  But don’t you want to have the confidence that if you need it the data on it is worth something?

Custom complete System coverage

Custom complete System Coverage

Now, there are lots of different cameras, recorders, cabling, and powering for the different systems.  There is not and should not be a one size fits all system, as all customers needs are different.  We don’t live in the day where you can have any color you want as long as it is black, like Henry Ford used to put it.  We don’t all live in perfectly square boxes, or have exactly the same size business.  That is why you need to be able to get a system that will fit your needs.  Not every customer will want dome cameras, or want analog resolution.  With a typical system that you buy, you can choose from a DVR (Digital Video Recorder), an NVR (Network Video Recorder), or a Server setup.  With a DVR you can get standard analog resolution also known as D1 or 960h, the lowest HD resolution possible.  With modern day technology you can also get up to 1080p resolution on the same style of recorder.



With a DVR you will need to run all camera cables back to the DVRs location, which can end up causing issues for some customers.  With a DVR you will typically use Siamese Cable, which is just a coaxial cable with an 18 gauge 2 conductor cable attached to it for carrying the power to the camera location from a centralized point.  With an NVR system you can get as low of resolution as you want and there are systems that can handle 12MP or greater.  With this type of a setup you will use network cable, often called Cat5 or Cat6 cable.  This is the same cabling that you would use on a normal computer network.  What is nice about this type of system is that you can decentralize your runs back to a network switch and connect the NVR to the network and now, your system is connected. There are also systems that will have PoE (Power Over Ethernet) built in to the NVR.  With this type of a setup you will also home run the camera cables back to the NVR location as with a DVR.  This type of a setup is good for helping to isolate the cameras from your main network.  The reason this can be important is if you are running an HD camera on the network it is essentially like having a computer on the network that is streaming YouTube® videos constantly. Now multiply that by the amount of cameras you have on the network, and that can add up to a large amount of extra data on your network.  A server setup is very similar to a decentralized NVR setup, except you are using a PC style setup to record the cameras instead of a Linux based standalone unit.  Some of the advantages to this type of a setup is that you can get some very intensive software to do things like people counting, height specific searches, color specific searches, lost object detection, trip wire detection, perimeter intrusion, and much more.  Some of the more sophisticated NVRs can do similar things, but servers have the ability to run significantly more analytics than an NVR can.

Now this is just some of the information you will need to understand when buying a security system.  Stay continued for more of the basic need to know information when first starting out buying a security system.  It is way too much to put into one article.  I am not sure how many it will take!


Upgrade your CCTV security system to HD quality without rewiring.

Written By:
Monday, February 29th, 2016

In recent years it has become possible to Upgrade your CCTV security system to HD quality without rewiring. To get extremely high resolution video with the use of network IP cameras and an NVR (network video recorder). If you already have a security camera system in your home or business, chances are it is an analog CCTV system. Most analog CCTV systems have a maximum resolution of around 704 pixels by 480 pixels.


By today’s standards 720 x 480 is a very low resolution and does not produce high definition, high quality video.

Unlike analog DVR’s and CCTV video cameras, network IP systems use a digital signal sent over CAT5 or CAT6 cable. Until now, if you wanted to upgrade your existing analog security camera system and improve the quality of the video to HD you would have to buy an NVR and new network IP cameras. Then you would have to rewire your entire home or business with CAT5 or CAT6 cable. This means you are essentially starting from scratch. You cannot reuse your recorder, cameras or existing cables. Here are a few other things you might want to take into consideration; traditionally IP cameras are more expensive and in many cases rewiring can be costly, time consuming or not possible at all.

So what can you do if you want to avoid the expense of rewiring and buying all new cameras but still want a high-resolution security system?

Well, thanks to the new HD-CVI technology it is now possible to upgrade your existing system to high definition without the need to rewire. This is because HD-CVI technology allows up to 1080P resolutions (2 megapixel), using your existing analog Coax cable. Just look at the difference in the video below.

Another thing you might find surprising is that you can buy an HDCVI recorder and cameras for less than what you probably paid for an analog system a few years ago and many HD-CVI recorders also have the ability to do both analog and HD-CVI. This means you can use your existing cameras and slowly upgrade to HD-CVI cameras over time as you choose.

Have a look at a few of these complete HDCVI packages from
Complete 4 Channel Analog to HD Upgrade Package
Complete 8 Channel Analog to HD Upgrade Package
Complete 16 Channel Analog to HD Upgrade Package

What do I need to do to upgrade?
If you already have quality analog cable you simply need to switch out your DVR and replace your existing cameras and you will have a 1080p high quality video surveillance system. The packages shown above also come with free US based tech support + free remote viewing apps.

Some other benefits of HD-CVI are that you can run video for up to 1600 feet on your existing analog cable. Unlike analog cameras you can also control your PTZ (Pan, Tilt, Zoom) cameras and transfer audio over the same cable so in short all you need to do is replace your analog DVR with an HD-CVI recorder and add some HD-CVI cameras and you’re ready to go.

Some Things to Consider when upgrading.
Here are a few you things that you should take into consideration when deciding to upgrade you system. Although you will be able to use your existing hard drive or storage device, in many cases you will get considerably less stored footage due to the fact that recording at higher resolutions means you will be taking up more disk space for each recording frame of video.

For instance, if you have your analog cameras recording seven days a week at 30 frames per second, you would get about 10 days of storage on a 1 TB hard drive. In comparison if you had eight 1080P cameras recording seven days a week at 30 frames per second you would only get about two days of recorded video.

But don’t fret, by dropping the frame rate from 30 frames to 20 frames per second (which is still a very smooth video) you would essentially double your hard disk space. Also, if you set your cameras to record on motion only you could increase your storage capacity even further. One of the nice things about these HD-CVI systems from is that these settings can be adjusted on a camera by camera basis. If you do decide to upgrade your storage capacity you will be happy to know that the prices of surveillance rated hard drives are very reasonable these days.

Another thing that you should know is that it is not recommended to run HD-CVI cameras over pre-made or lower quality analog cables. The reason is that you will be transferring a high amount of data which requires a quality cable in order to ensure the best audio and video quality. Take a look below at the difference between a quality siamese cable and premade cables.


Now that you understand the quality advantages and affordability of HD-CVI, you may be asking yourself why would I ever want to use a network IP system?