Ruijie RG-NBS3100-24GT4SFP-V2 28-Port Gigabit Layer 2 Cloud Managed Non-PoE Switch
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, frame rate settings, and whether you have H.265 encoding enabled or not to save space (We advise turning it on to double the capacity shown below with ease).
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 (to perhaps double or more these figures again).
|
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 2 Terabytes for a 4 x 4/5MP HD camera setup, as this should give you approx 2 weeks using H.265 @ 20fps and that is on continuous, not motion-detected recording.
(You may only require the full 25 frames per second on certain cameras if things are fast-moving - ie above a till)
You can also use the Hikvision online calculator to work out what works best for you specifically: https://tools.hikvision.com/ca...
(All of our hard drives come fitted and are CCTV-specific from one of the major brands)
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Ruijie RG-NBS3100-24GT4SFP-V2 28-Port Gigabit Layer 2 Cloud Managed Non-PoE Switch
The Ruijie RG-NBS3100-24GT4SFP-V2 is an enterprise-class Layer 2 managed switch designed to provide secure, high-speed Gigabit connectivity for business networks, surveillance systems, educational institutions, hospitality environments and commercial installations. Combining reliable hardware with intelligent cloud management, it delivers exceptional network performance whilst simplifying deployment and ongoing maintenance. Equipped with 24 × 10/100/1000Mbps Gigabit RJ45 ports and 4 × Gigabit SFP uplink ports, the switch offers flexible copper and fibre connectivity for expanding network infrastructure. Its 56Gbps switching capacity and 41.67Mpps forwarding rate ensure fast, reliable data transmission, even under heavy network traffic. The RG-NBS3100-24GT4SFP-V2 supports comprehensive Layer 2 networking features including VLAN, Link Aggregation, IGMP Snooping, STP/RSTP, QoS, Port Mirroring, Loop Protection, Broadcast Storm Control and Port Isolation. These features improve network efficiency, strengthen security and ensure stable performance across demanding enterprise and CCTV applications. It also includes IP Camera Recognition, making it particularly suitable for professional surveillance deployments. Management is simplified through Ruijie Cloud, allowing administrators to remotely configure, monitor and troubleshoot the switch from anywhere using the Ruijie Reyee App or web interface. Zero-touch provisioning, cloud monitoring and remote firmware upgrades reduce installation time and minimise maintenance costs
KEY FEATURES
- 28-port Layer 2 cloud managed non-PoE switch
- 24 × 10/100/1000Mbps Gigabit RJ45 ports
- 4 × Gigabit SFP fibre uplink ports
- 56Gbps switching capacity
- 41.67Mpps forwarding rate
- Enterprise-grade Layer 2 management
- Lifetime cloud management via Ruijie Cloud
- Remote management using the Ruijie Reyee App
- IP Camera Recognition for CCTV deployments
- Supports VLAN, QoS and Link Aggregation
- STP and RSTP network redundancy
- IGMP Snooping for multicast optimisation
- Port Mirroring, Port Isolation and Loop Protection
- Broadcast Storm Control
- 9KB Jumbo Frame support
- 6kV surge protection
- Fanless metal enclosure for silent operation
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