Ruijie RG-NBS3300-8MG2XS-P 8-Port Multi-Gigabit Layer 2 Cloud Managed PoE+ Switch with 2 × 10G SFP+ Uplinks
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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Ruijie RG-NBS3300-8MG2XS-P 8-Port Multi-Gigabit Layer 2 Cloud Managed PoE+ Switch with 2 × 10G SFP+ Uplinks
The RG-NBS3300-8MG2XS-P is part of Ruijie’s NBS3300 series, designed to deliver high-bandwidth access switching for next-generation networks. It provides Multi-Gigabit connectivity to eliminate the 1GbE bottleneck, making it ideal for Wi-Fi 6/7 access points, IP surveillance systems and high-speed enterprise networks. It features 8 Multi-Gigabit PoE+ RJ45 ports (up to 2.5Gbps) and 2 × 10G SFP+ uplink ports, enabling high-speed aggregation and backbone connectivity. The switch supports a 240W PoE budget, allowing simultaneous power delivery to multiple PoE-enabled devices such as access points and IP cameras. Designed for enterprise reliability, it includes Ruijie’s CPU protection (CPP) to prevent traffic-based attacks, ensuring stable performance under heavy load. It also supports advanced Layer 2 features and cloud-based management via Ruijie Cloud, enabling remote configuration, monitoring, and zero-touch provisioning for simplified deployment and maintenance. Its enterprise-grade build quality, combined with VLAN segmentation, IGMP Snooping, and security policies, makes it suitable for office buildings, hotels, education environments, factories, and CCTV installations requiring stable high-speed PoE networking.
KEY FEATURES
- 8 × 100M/1G/2.5G Multi-Gigabit RJ45 PoE+ ports
- 2 × 10GbE SFP+ uplink ports
- 240W total PoE power budget
- Supports Wi-Fi 6 / Wi-Fi 7 access points
- Layer 2 cloud managed switch
- Ruijie Cloud remote management & zero-touch provisioning
- CPU Protection Policy (CPP) for stability and security
- VLAN support for network segmentation
- IGMP Snooping for multicast optimisation
- Link Aggregation support
- Enterprise-grade performance and reliability
- Designed for SMB, enterprise edge, CCTV and hospitality networks
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