11 - PoE's & How to Use Them

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System Architecture


Network Cat6 based systems offer the most flexible design options. IP based systems allow for several different configurations, which helps to reduce costs and increase efficiency in system operations. The following section focuses on IP system design architecture utilizing PoE units.


PoE stands for (Power over Ethernet). This feature allows one cable to transmit power to the camera and video data from the camera to the PoE unit on one single network cable, usually Cat6e.




Direct Connect & PoE Extenders


This is when a cable is ran directly from each camera to the NVR and then connected to a PoE port on the back of the NVR. Maximum distance with any IP device (including cameras) is 300ft with Cat6. If a cable run longer than 300ft is needed then a PoE extender can be used.


The unit extends the video and power distance for a single camera another 300ft. Up to 3 units can be used on a single camera. The unit itself does not require power and is weather rated for outdoor cable extensions. These units can be used on cameras connected directly to an NVR or a PoE unit.






Understanding PoE Units & Megabit Ports


IP based systems generate a lot of data and your design needs to provide enough bandwidth so that the data can be seamlessly processed. If the following guidelines are not adhered to, a system may experience video freezing and lapses of fluid video. This is caused when the cameras, recorders and hard drives are all working properly but the data flow is bottlenecked at some point. This bottleneck often occurs at your PoE cable connections. There are two speeds of data ports. There is 10/100Gbps (Gigabits per second) and 10/100/1000Gbps which is called a Gigabit port. The 1000Gbps gigabit ports are ten times faster than a standard 100Gbps port. For simplicity going forward, we will refer to 10/100Gbps ports as a "Standard Ports" and the 10/100/1000Gbps as "Gigabit Ports".


Cameras connecting to the NVR can use a standard port on the NVR for communication. There will be no data flow limitation because there is only one camera connected to the port. A standard port exceeds the data flow needed for 4K 30fps cameras, so they are great for connecting one camera to the system. The NVR PoE ports on the back of the NVR are standard ports. Most of the PoE ports on a PoE unit are standard ports which are great for one camera each.


When connecting multiple devices together, such as an NVR to a internet modem, gigabit ports are required due to the large data flow required for remote access and remote management. The network port on the NVR is a gigabit port and most ports on an internet modem are also gigabit ports, so no data flow problems should occur when connecting the NVR directly to an internet modem.





The data bottlenecks usually occur when you are connecting multiple PoE units to a system. The PoE units also have one or two gigabit ports (depending on the model). These gigabit ports are the ports you use to connect the PoE unit to another PoE unit or to a network.


If you do not have enough gigabit ports on the devices you are using to connect everything, you can add a DataHub to the system. The Datahub is a low cost unit that has five gigabit ports. The five ports allow multiple devices to be connected together with gigabit ports so that there is no data bottleneck. The unit does require power so it is usually located near the NVR or internet modem.





The Cyber-Secure diagram below shows how all data collection devices are connected with a gigabit port and the cameras are connected to the PoE units using standard ports. Even the WiFi antennas in the diagram connect to the system using a gigabit port. Notice that when two PoE units are connected together, the green ports on the PoE unit are used because the green ports are the unit's gigabit ports. The PoE units shown below have eight standard ports and two (green) gigabit ports.






Distributive Design


PoE units make things easy. If you have a group of cameras in a certain section of a facility, using a distributive design saves money and labor. The concept is simple: a secure location for a PoE unit with available power is found; usually an electrical closet or janitor's closet. The PoE is located in this secure area and a Cat6 cable is ran to each camera in the area and then connected to the PoE unit. One Cat6 cable is then ran from that PoE unit to the next closest PoE unit or directly back to the internet modem, DataHub, or NVR. This configuration eliminates running large amounts of cable. If a secure location cannot be found for the PoE unit, then locate the PoE next to the NVR and run each camera's Cat6 cable to it. Don't leave the PoE unsecure. If unplugged, all the cameras connected to the system will drop offline.


The application is going to dictate the design. Take a mental survey of where secure locations are and see if they help with a distributive design. It is common to run cameras to one secure location and stack the PoE units when other secure locations do not exist. Some customers prefer this type of design as they like all of the equipment located in one central location.






Chapters



Dome & Book

1 - The Smart Way to Shop for Security Cameras
Many consumers are more confused at the end of shopping for a security solution than when they started. (video)



2 - Choosing the Right Technology
There are so many different technologies on the market: solar, battery, wireless, wired as well as Consumer Grade and Professional Grade versions of these products. How do you know which is right for you? (video)



3 - Industry Warranty's Indicate Quality
A security camera's warranty is a good indication of its quality and how long you should expect it to last. Industry warranties range from 1 to 10 years. Know the warranty before you buy! (video)



PTZ & Book

4 - The Pro's Golden Rules
There are golden rules that should be considered when designing or purchasing any security camera system. We explain each rule so you "Get It Right the First Time"! (video)



5 - Understanding Resolution & Frame Rates
Let's cut through the confusion and keep things simple when it comes to video clarity and resolution. Which resolution is right for your application? (video)



6 - Camera System Components
It's important to learn the basic parts that are used in all video security camera systems: camera components, cable, recorders, monitors and internet connection. This video covers it all. (video)



360 & Book

7 - Best Camera Locations & Heights
Learn recommended camera fields of view, installation locations and heights for best coverage. Your design should be flexible while following these best practices.



8 - Selecting the Right Camera & Mount
One size does NOT fit all! Learn how to select the right camera for each location. Optical Zoom vs Digital Zoom, how to capture license plates, color night vision & more. Follow the Pro's tips and get it right the first time. (video)



9 - Video Recorders & Best Locations
How to select the right security NVR (network video recorder) for your application. Click through to learn the best locations for video surveillance recorders.



10 - Video Storage, Hard Drives & Cloud
Use our storage calculator to easily calculate what size hard drive need. Learn how to expand storage, protect against theft and what cloud options we offer. (video)

Phone & Book

11 - PoE Units & How to Use Them
PoE units make installation more cost effective and provide flexible system design options. Learn what they are and how to use them.



12 - Wire & Cable - Alternative Transmission Options
Learn how to wire a system, plan cable runs and design efficiently. If the camera installation is difficult, our wireless transmission options will solve the problem. (video)



13 - Business System Design
Learn how to design an effective business security camera system. Effectively secure your assets and employees while managing your business operations from anywhere. (video)

Plate & Book

14 - Home System Design
Learn how to design an effective home security camera system to secure your home, assets and family. Monitor your home remotely from anywhere. (video)



15 - Interior Camera Placement
Learn how to effectively locate security cameras inside of your home or business for the best coverage while maintaining privacy.



16 - DIY Installation or Pro Install - You Choose!
Most of our customers install the system themselves with our expert factory support, but you may want that clean professional installation completed by a pro. We support both options nationwide and you choose which you prefer. (video)

Cable & Book

17 - Live & Remote Viewing with Alerts
You choose how you interface with our state-of-the-art-systems. All options are available and any combination of viewing options can be used: direct connect monitors, personal computers, tablets and smart phones - Super fast, clear and no monthly fees.



18 - Customizing Kits - Sending Quotes - Financing
Learn how to customize any of our kits to meet your exact needs, then send a line-item PDF quote to any email you choose. Use our instant financing option during checkout to fit the budget. (video)



19 - ProVue vs. Cyber Secure - Feature Comparison
We offer two high performance series. Both are cutting edge 4K solutions. Which series is right for you?



20 - Become Certified Design Consultant
Help secure your community and earn a great income on your schedule. Backstreet University offers a professional consultant's training course.




Design Tools & Resources



Design & Book

Expert System Design Service
Let one of our experts design your system. Its the sure way to get it right the first time at the lowest price. Book a 30 minute design appointment using our online calendar. You'll be glad you did!



Do-it-yourself System Designer
Design your home or business security system like a Pro. Locate cameras and their viewing areas to provide a visual of the effective coverage of each camera and evaluate the overall design. This surveillance system design tool covers it all.



HDD & Book

Custom Kit Builder
Build a complete custom system for your home or business without any confusion or mistakes. This easy to use tool makes sure you select all the components you need for a complete system. You can even include installation!



Hard Drive Calculator
Use our video storage calculator to determine the size of the hard drive you need based on the number of cameras and the desired storage days.



Security Industry Terms
Not sure what Cat6 is? Would you like to know the difference between a DVR and an NVR? Here are simple and clear explanations of the industry terms.




Industry News & Events




Banned Security Brands
US government banned the use of Dahua, Lorex, Hikvision and other security cameras in federal facilities due to hidden backdoors. In June 2021, the FCC unanimously voted to start procedures to ban the sale of these brands to the general public by denying new products FCC approval.


What is NDAA & Why It Matters
The NDAA law banned the use of electronic equipment provided by specific companies. What’s interesting about the law is that it bans companies rather than countries. It ignores borders and focuses on individual entities.





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