BNC vs. PoE Security Camera: Comparison Between Them

BNC and PoE are the two most common types of security cameras. However, they are entirely different in terms of quality, installation, transmission, and other aspects. Before you make any decision, it is better to understand both technologies and their pros and cons.

In this article, we will explain what BNC and PoE cameras are. We will discuss the differences and similarities between them so that you can easily select the best one.

What is a BNC Camera?

A camera that has a BNC (Balanced Coaxial Cable) connector to connect with a coaxial cable is called a BNC camera.

It is an analog camera that transmits signals through a coaxial cable. It could be powered by the same cable or a separate power supply. It is an old technology; however, it still exists and is being used.

The camera captures the footage and transfers it in the form of signals via a coaxial cable. The signals are received by a DVR (Digital Video Recorder) where they are processed, and the video is stored.

What is a PoE Camera?

PoE stands for Power Over Ethernet. It is a technology that allows cameras to be powered and networked through one Ethernet cable.

Any camera using PoE is called a PoE camera. It is a digital camera that processes the video on its own. It is a reliable and preferred option and is widely used because of its features.

Once the video is captured through the camera, it is processed. The video is sent to the local storage or NVR via the Ethernet cable.

BNC vs PoE: What's the Difference Between Them?

Let's understand the difference between BNC and PoE. It will help you in making the right decision.

Installation Costs

The installation of BNC cameras is complex as it requires separate cables or wiring for power supply and signal transmission. You need to buy the power supply unit, and coaxial cables are more expensive than Ethernet. All these things make the installation cost of BNC camera systems higher than PoE.

In PoE, you only require one Ethernet cable for power and data transmission. It is easier and cheaper to install.

Scalable

In terms of scalability, PoE is better. People usually have Ethernet cables and an existing system to connect such camera systems. Secondly, the number of cameras can be increased according to the needs and without any hassle.

On the other hand, coaxial cables are not common. You probably need to install a new infrastructure to use such cameras. And installing new cameras becomes a headache.

Flexibility

PoE is a more flexible option as you can install it easily. You can connect as many cameras as you want, which makes it more flexible. It can work with your existing infrastructure. Most importantly, it requires only one Ethernet cable for power and data.

In contrast, BNC is less flexible because of the coaxial cables and the presence of analog cameras.

Resolution

BNC uses analog cameras that offer substandard video quality. The resolution is quite low, and even if you find HD analog cameras, the result won't be as good as digital cameras. Thus, you have to compromise on the video quality.

PoE cameras offer an incredible resolution. You can find 1080p, 2K, 4K, etc. It offers high resolution to capture intricate details in the video. Even if you zoom in, you get optimal clarity.

Transmission

BNC uses a coaxial cable for transmission. The limitation of its distance is 300m.

PoE uses Ethernet for data transmission. It can transmit data up to 100m, but this can be expanded. You can install repeaters to increase the distance up to 500m.

Audio Quality

The quality of audio obtained from CCTV cameras primarily relies on the attached microphone. With a POE ethernet cable, both digital video and audio signals are transmitted from the CCTV camera.

Therefore, there's no requirement for a separate audio cable as with analog cameras connected via a BNC connection.

In contrast, analog cameras utilizing a BNC connection require the DVR to digitize the audio signal picked up by the camera. Consequently, POE delivers noticeably superior audio quality.

Bonus: Advanced PoE Camera Recommendation

For optimal security, you can try the following PoE cameras.

16MP Dual Lens Security Camera - Duo 3 PoE

Duo 3 is a powerful PoE camera that captures a 180⁰ panoramic view through its dual lens. Both lenses capture images that are finally stitched to offer more details and a wider view in a single frame. It is a 16MP camera that records 4K resolution video, so you get crisp and clear videos with fine details.

The camera has motion tracking. It detects the motion of objects and sends accurate alerts to your devices. It also has color night vision to capture true colors at night. Other than that, it offers two-way audio, double warning, flexible storage options, an IP-67 rating, time-lapse, and tons of features.

Reolink Duo 3 PoE

Groundbreaking 16MP Dual-Lens PoE Camera

16MP UHD, Dual-Lens, Motion Track, 180° Wide Viewing Angle, Power over Ethernet, Color Night Vision.

Learn More about Reolink Duo 3 PoE

4K PTZ PoE Security Camera - RLC-823S2

It is a PTZ camera that covers a 360⁰ view in 4K UHD. You can cover a wider area and enjoy optimal clarity in videos. It also has 16X to unveil intricate details in the image.

The camera has auto-tracking and smart patrolling features. It keeps an eye on your property and sends alerts on your devices. You can enjoy colorful videos at night and deter intruders through the siren. It is an IP66 weather-resistant device that can be used indoors and outdoors.

FAQs

1. Is BNC better than PoE?

No. PoE is better than BNC because it is the latest technology and the most widely used one. It offers better video quality, scalability, installation cost, etc. It can go with an existing system or network of Ethernet cables and is more reliable.

2. Is PoE better than coax?

Yes, PoE is way better than coax. It is easier to install, more scalable, and cost-effective. Secondly, it offers better resolution and features.

3. What is the difference between CCTV and PoE?

CCTV stands for Closed Circuit Television. It is a type of video surveillance system, including cameras, wires, and recorders. On the other hand, PoE is a technology that powers and networks an IP camera using an Ethernet cable.

Conclusion

BNC is an old technology and is becoming obsolete with time. The reason is the use of coaxial cable, low-quality videos, and lack of features. On the other hand, PoE is widely used and preferred. It offers high video quality and advanced features like tracking, two-way audio, a warning system, etc. We have explained the difference between these to give you a clear idea. If you want to install a new security camera system, PoE would be the best choice.