STEP 4. Connect the power and data cables. Press firmly, but do not force them onto the pins or you may damage them. The connectors are “keyed” to ensure they are connected in the proper position.

STEP 5. Attach hard drive to the base of the DVR with screws using the four mounting holes.

STEP 6. Replace the DVR cover and secure.

HARD DRIVE

MOUNTING HOLES

DATA

POWER

FOR HARD DRIVE

CABLE

CABLE

PICTURE 7-3

7.2CALCULATING THE RECORDING CAPACITY OF A HARD DISK DRIVE

While the physical data capacity of a hard drive is fixed, how much video you can record upon it depends on your recording configurations. Higher quality recordings will take up more space on the drive and setting the DVR to record for more frequently will fill it up more rapidly.

To determine the optimal capacity for your purposes, the chart below to estimate the size of hard drive that you’ll need.

VIDEO

RESOLUTION

FRAME

VIDEO

BIT

SPACE

FORMAT

 

RATE

QUALITY

RATE

USED

 

 

(FPS)

 

(kbps)

(MB/h)

 

 

 

 

 

 

NTSC

CIF

30

Highest

1000k

465

 

 

 

 

 

 

 

 

 

Higher

768k

297

 

 

 

 

 

 

 

 

 

Medium

512k

230

 

 

 

 

 

 

 

 

 

Low

384k

173

 

 

 

 

 

 

 

 

 

Lower

256k

115

 

 

 

 

 

 

 

 

 

Lowest

128k

56

 

 

 

 

 

 

 

D1

7.5

Highest

500k

228

 

 

 

 

 

 

 

 

 

Higher

375k

128

 

 

 

 

 

 

 

 

 

Medium

250k

117

 

 

 

 

 

 

 

 

 

Lower

192k

75

 

 

 

 

 

 

 

 

 

Lowest

128k

61

 

 

 

 

 

 

PAL

CIF

25

Highest

1000k

466

 

 

 

 

 

 

 

 

 

Higher

768k

295

 

 

 

 

 

 

 

 

 

Medium

512k

235

 

 

 

 

 

 

 

 

 

Low

384k

175

 

 

 

 

 

 

 

 

 

Lower

256k

112

 

 

 

 

 

 

 

 

 

Lowest

128k

56.4

 

 

 

 

 

 

 

D1

7.5

Highest

500k

228

 

 

 

 

 

 

 

 

 

Higher

375k

128

 

 

 

 

 

 

 

 

 

Medium

250k

117

 

 

 

 

 

 

 

 

 

Lower

192k

75

 

 

 

 

 

 

 

 

 

Lowest

128k

61

 

 

 

 

 

 

The formula for calculating the required disk space is:

Total Recording Capacity = Used space per hour (MB/h) x Recording time (hour) x number of channels

Example: A customer is using the NTSC format (30 frames per second), CIF resolution with video quality set to Lowest and a total of 16 Channels. He wants the unit to record continuously for a month. Therefore, the calculation will look like this:

56(MB/h), x 24 (hours/day) x 30 (days) x 16 (channels) = 645,120MB or 650GB

Installing a 750GB SATA hard drive should provide enough space for one month’s continuous recording time at those settings.

CHAPTER 9 HARD DISK DRIVE

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Q-See QT446, QT428, QT426, QT454 user manual Calculating the Recording Capacity of a Hard Disk Drive

QT428, QT446, QT426, QT454 specifications

The Q-See QT428, QT426, QT446, and QT454 are part of Q-See's advanced security camera systems, designed to provide robust surveillance for both residential and commercial applications. These models are known for their reliability, extensive features, and user-friendly interfaces, making them a popular choice among security-conscious consumers.

The QT428 is equipped with 4 channels, enabling users to monitor multiple areas simultaneously without compromising on quality. It offers a remarkable 1080p high-definition video output, ensuring that recorded footage remains clear and detailed. The QT428 also features night vision capabilities, allowing for effective monitoring in low-light conditions, which is crucial for nighttime surveillance.

Moving to the QT426, this model provides slightly fewer channels but enhances its storage capabilities. This system supports a range of hard drives, allowing users to increase their storage space according to their specific needs. Just like the QT428, it also boasts 1080p video resolution and advanced night vision capabilities, ensuring that no detail is overlooked.

The QT446 offers a blend of functionality and affordability, catering to budget-conscious users without skimping on features. It comes with 4 channels, delivers 1080p video quality, and includes remote access options via mobile devices. This feature is immensely beneficial for users who wish to monitor their properties in real time from anywhere in the world.

Lastly, the QT454 is the top-tier model in this line. It boasts 8 channels, making it ideal for larger properties or businesses that require comprehensive coverage. The QT454 not only features crystal-clear 1080p resolution but also includes enhanced motion detection capabilities and smart alerts. Users can customize their alert settings to receive updates whenever movement is detected, making it an effective tool for proactive security measures.

All of these models utilize advanced H.264 video compression technology, which ensures efficient video storage without sacrificing quality. The systems are also compatible with various viewing platforms, allowing users to access their camera feeds on smartphones or computers. Moreover, installation is straightforward, as Q-See provides all necessary components and clear instructions.

In conclusion, the Q-See QT428, QT426, QT446, and QT454 security camera systems are a testament to Q-See's commitment to quality and performance. With features like HD video, night vision, and easy remote access, these systems are designed to meet the diverse needs of consumers seeking reliable security solutions.