BNC Video Input Ports: Built-In vs Pigtails

A DVR system can function without audio recording, but video recording is essential for it to be considered a Digital Video Recorder (DVR).

The BNC video input ports connect analog cameras to the DVR system for recording and management. In PC-based DVR systems, these ports may be integrated into the DVR card or connected via DB25 video cables, as shown in the image above. Similarly, in standalone systems, the BNC ports can be built into the unit's back panel or connected through DB25 video pigtails.

There are reasons for having these two different BNC port configurations:

• Built-in Ports:

  • Durability: Some installers prefer built-in ports due to concerns about durability. Video cables can wear out over time, requiring replacement, which can be costly.
  • Labeling: Poorly labeled cables can cause confusion if the labels wear off. Re-labeling them may look unprofessional and is often unacceptable, making replacement the best option.

• Pigtail-type Ports:

  • Ease of Replacement: For DVR cards, replacing video cables is easier than removing the entire DVR card to address issues with the BNC ports. Repairing the hardware can leave unnecessary marks on the board, and in the worst case, the unit may need to be returned for warranty service (RMA).
  • Compact Design: In standalone systems, using video cables makes the units more compact by saving the space that built-in BNC ports would occupy. This results in smaller, lighter units, which reduces shipping costs.

So, which option do you prefer: built-in ports or pigtails?