Uniview 10-Port Unmanaged PoE Switch with 8 PoE Ports, Gigabit Uplink & 250m Extend Mode (UV-NSW2020-8T2GT-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, Gigabit Uplink & 250m Extend Mode (UV-NSW2020-8T2GT-POE-IN)
The UV-NSW2020-8T2GT-POE-IN is a high-performance unmanaged PoE Ethernet switch designed for IP surveillance and professional networking applications. It provides 8 Fast Ethernet PoE ports along with 2 Gigabit uplink ports for stable high-speed data transmission. Supporting IEEE 802.3af/at standards, the switch delivers up to 30W per port with a total PoE power budget of 120W, making it ideal for powering IP cameras, wireless access points, and network devices. With Extend (Surveillance) mode, it supports transmission distances up to 250 meters, perfect for long-distance CCTV installations. Its all-metal fanless design ensures silent, durable, and reliable 24/7 operation.
Key Features
- 8 × 10/100Mbps PoE RJ45 ports
- 2 × Gigabit uplink ports
- IEEE 802.3af / at PoE support
- Total PoE power budget up to 120W
- Up to 30W output per PoE port
- Extend mode supports up to 250m transmission
- Secure mode isolates downlink ports for better security
- Plug-and-play unmanaged operation
- Buffer optimisation for stable video streaming
- 5.6Gbps switching capacity
- Fanless silent cooling design
- Durable all-metal housing
- Stable 24/7 surveillance performance
- Ideal for IP cameras, NVRs, WiFi APs, and CCTV systems
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