User Manual for Commercial Series Net DVR

Bit Rate Type: There are two options: “Variable” and “Fixed”.

If you select variable bit rate, DVR will adjust the actual bit rate according to the video movement. When there is not much movement, DVR will use low bit rate, when there is much movement, DVR will use high bit rate. In this case, DVR can save HDD usage and network bandwidth.

If you select fixed bit rate, DVR will use the fixed bit rate to compress image. The bit rate size is defined in “Max Bit Rate” option. In this case, we can calculate the recorded file size and network bandwidth that we need.

Max Bit Rate: If you select variable bit rate, when the video input has great movement, we need to limit the max bit rate. The max bit rate has the following options (bps): 32K, 48K, 64K, 80K, 96K, 128K, 160K, 192K, 224K, 256K, 320K, 384K, 448K, 512K, 640K, 768K, 896K, 1M, 1.25M, 1.5M, 1.75M, 2M and “User define”.

The max bit rate selection is related to resolution. If you select high resolution, you must select high bit rate. For CIF resolution, the typical max bit rate is 384K-768Kbps. For DCIF resolution, the typical bit rate is 512K-1Mbps. For 4CIF resolution, the typical bit rate is 1.25Mbps-1.75Mbps. Of course, you will select the proper max bit rate based on the camera, background and image quality requirement.

Bit rate: You can select bit rate size for fixed bit rate type. It is the same as “Max Bit Rate”.

Image Quality: If you select variable bit rate type, you can define image quality. There are 6 options: Highest, Higher, High, Average, Low and Lowest. High image quality needs high bit rate size.

Frame Rate: Frames per second. Options are: Full (PAL is 25 FPS and NTSC is 30FPS), 20, 16, 12, 10, 8, 6, 4, 2, 1, 1/2, 1/4, 1/8, 1/16. For low frame rate, you can select low bit rate size.

PreRecord Time: When you enable motion detection recording or external alarm recording, you can define prerecord time. The options are: No PreRecord, 5 Seconds (default selection), 10 Seconds, 15 Seconds, 20 Seconds, 25 Seconds, 30 Seconds and Max PreRecord.

MaxPreRecord is to save all data in PreRecord buffer. The PreRecord time is related with bit rate. The lower bit rate, the longer PreRecord time is.

If the bit rate (Max bit rate) is very low, and you select “PreRecord Time” as “5 Seconds”, maybe the actual perrecord time is more than 5 seconds. On the other side, if the bit rate is high, and set “PreRecord Time” as “30 Seconds”, the actual pre-record time is less than 30 seconds.

PostRecord Time: When external alarm or motion alarm is stopped, DVR will continue recording time. The options are: 5 Seconds (default), 10 Seconds, 30 Seconds, 1 Minute, 2 Minutes, 5 Minutes and 10 Minutes.

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Q-See QSC26416, QSF2648016, QSF2648008, QSD42208, QSC26408 user manual Total
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QSC26408, QSC26416, QSF2648016, QSD42208, QSF2648008 specifications

Q-See is known for its robust line of security camera systems that cater to a variety of surveillance needs. Among their impressive offerings are models such as the QSF2648008, QSD42208, QSF2648016, QSC26416, and QSC26408. Each of these models brings unique features and advanced technologies aimed at enhancing security and surveillance capabilities.

The QSF2648008 is a powerful surveillance system designed for larger properties or commercial settings. This model features 4K Ultra HD resolution, providing crystal-clear images that are essential for identifying details. It comes with advanced night vision capabilities, enabling users to maintain visual surveillance even in low-light conditions. The system supports remote viewing, enabling users to access live feeds or recorded footage from their smartphones, tablets, or computers.

Next, the QSD42208 is another high-performance model known for its flexibility and scalability. It supports a hybrid setup, allowing users to integrate both analog and IP cameras seamlessly. This feature makes it easy for users to upgrade their existing systems without having to replace all their current equipment. Furthermore, it boasts a user-friendly interface and custom alerts for motion detection, ensuring that property owners are immediately notified of any suspicious activity.

The QSF2648016 model enhances surveillance with additional camera support, able to accommodate up to 16 channels. This model is perfect for larger installations requiring extensive coverage. It offers the same 4K resolution as the QSF2648008, ensuring high-quality footage across all channels. Its built-in storage options provide ample space for archival footage.

The QSC26416 and QSC26408 models also focus on providing superior video quality and advanced functionalities. Both systems emphasize easy installation and user-friendly interfaces, making them ideal for both DIY enthusiasts and professional installations. The QSC26416 supports 16 channels, while the QSC26408 caters to smaller setups with 8 channels. Both models include motion detection alerts, customizable settings, and remote access options.

Overall, Q-See's range of surveillance systems is characterized by their high-resolution imaging, flexible installation options, and remote accessibility. These features are essential in providing users with effective security solutions tailored to meet the demands of various environments, whether residential or commercial. Each model delivers a combination of technology and practicality that enhances overall security efforts, making them a worthwhile investment for safeguarding properties.
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