Uniview 10-Port Unmanaged PoE Switch with 8 PoE Ports, 250m Extend Mode & Metal Housing (UV-NSW2020-10T-POE-IN)
Unless selecting a vari-focal camera (with an adjustable lens) It is important to select the correct camera lens option for where the camera is to be positioned. A smaller lens will give you a wider angle but will be "zoomed out more", while a bigger lens will narrow the angle down and "zoom in more". See below to give you some idea on angles of Megapixel HD Cameras:
| Lens in mm | Approx Viewing Angle (degrees) | Ideal Distance (metres) | Typical usage/notes |
|---|---|---|---|
| 2.8 | 106 | <6 | For seeing as much of the immediate area as possible such as above a doorway/low down/garage soffits (edges can appear slightly warped/distorted) - clearly "zoomed out" |
| 3.6/4 | 83-90 | <12 | A great general purpose option giving great coverage still in the corner of a room or higher up on second floor soffits with less distortion - more of a natural "zoom" |
| 6 | 56 | 6-20 | Narrows down the angle and zooms in to look past the immediate area a little to gain more detail - down a driveway for example from higher up |
| 12 | 24 | 20+ | Zooms in significantly more to look at a gate, entrance or adjascent building |
| 16 | 19 | 24+ | As above but more so |
The amount of hard drive space you require is dictated by how many cameras, as well as their resolution and frame rate settings. Finally you can often make your storage space last a lot longer by enabling motion detected recording rather than continuous, especially if there are long periods of no activity.
|
Resolution (Megapixels) |
Days of storage provided by 1TB per camera (continuous - full 25 frames per second) |
Days of storage provided by 1TB per 4 cameras (continuous - full 25 frames per second) |
Days of storage provided by 1TB per 4 cameras (50% motion- 15 frames per second) |
|---|---|---|---|
| 1 | 44 | 11 | 36 |
| 2 | 22 | 5 | 18 |
| 3 | 17 | 4 | 14 |
| 4 | 11 | 3 | 9 |
| 5 | 9 | 2 | 8 |
| 6 | 8 | 2 | 6 |
| 8 (4K) | 5 | 1 | 4 |
| 12 | 4 | 0.5 | 3 |
As a rule of thumb we recommend a minimum of 2 Terabytes per 4 x 2-4MP HD cameras, as this should give you 2 weeks to a month with a few adjustments on motion detected recording. You may only require the full 25 frames per second on certain cameras if things are fast moving.
(All of our hard drives come fitted and are CCTV specific from one of the major brands)
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Uniview 10-Port Unmanaged PoE Switch with 8 PoE Ports, 250m Extend Mode & Metal Housing (UV-NSW2020-10T-POE-IN)
The UV-NSW2020-10T-POE-IN is a reliable unmanaged PoE Ethernet switch designed for IP surveillance and networking applications. It features 10 Fast Ethernet ports, including 8 IEEE 802.3af/at compliant PoE ports capable of delivering power and data to IP cameras, access points, and network devices through a single Ethernet cable. With Extend (Surveillance) mode, the switch supports transmission distances up to 250 meters, making it ideal for long-distance CCTV installations. Its all-metal fanless design ensures silent operation, stable performance, and durability for continuous 24/7 use in homes, offices, shops, and commercial surveillance systems.
Key Features
- 10 × 10/100Mbps RJ45 Ethernet ports
- 8 × PoE+ ports (IEEE 802.3af/at compliant)
- Total PoE budget up to 88W
- Up to 30W output per PoE port
- Extend mode supports up to 250m transmission
- Plug-and-play unmanaged operation
- Secure surveillance mode support
- Intelligent traffic control & buffer optimization
- 2Gbps switching capacity
- 1.49Mpps forwarding performance
- Fanless silent cooling design
- Durable all-metal housing
- Stable 24/7 surveillance operation
- Ideal for IP cameras, NVR systems, and networking devices
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