Ruijie RG-CS86-24MG4VS-UP 24-Port Multi-Gigabit Layer 3 Cloud Managed PoE++ Switch with 4 × 25GE SFP28 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, 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-CS86-24MG4VS-UP 24-Port Multi-Gigabit Layer 3 Cloud Managed PoE++ Switch with 4 × 25GE SFP28 Uplinks
The Ruijie RG-CS86-24MG4VS-UP is part of Ruijie's advanced CS86 series, designed for next-generation enterprise and campus networks requiring high bandwidth, flexible access speeds, and powerful PoE delivery. It provides 24 Multi-Gigabit RJ45 ports (100M/1G/2.5G/5G) with full support for IEEE 802.3af/at/bt PoE++, allowing it to power high-demand devices such as Wi-Fi 6E/7 access points and PTZ surveillance cameras. The switch also includes 4 × 25GE SFP28 fibre uplink ports, enabling high-speed aggregation and backbone connectivity for modern network infrastructures. With a 440Gbps switching capacity and 327Mpps forwarding rate, the device is built for high-throughput environments where performance and stability are critical. Advanced Layer 3 capabilities and hardware-level protection ensure reliable operation in enterprise deployments. It also supports Ruijie Cloud management, enabling zero-touch provisioning, remote monitoring, and simplified network maintenance. Built-in intelligent features such as VSU virtualisation, CPU protection, and hardware redundancy help ensure continuous uptime and secure operation in mission-critical environments.
KEY FEATURES
- 24 × Multi-Gigabit RJ45 ports (100M / 1G / 2.5G / 5G)
- Full PoE++ support (IEEE 802.3af/at/bt)
- 4 × 25GE SFP28 uplink ports
- 370W total PoE power budget
- Layer 3 cloud managed switch
- 440Gbps switching capacity
- 327Mpps forwarding performance
- VSU virtualisation support for scalable networks
- Hardware-level redundancy for stability
- CPU protection policy (CPP) & NFPP security architecture
- VLAN, QoS, ACL, STP/RSTP/MSTP support
- ERPS ring protection for fast recovery
- IGMP Snooping for multicast optimisation
- DHCP Snooping and IP-MAC binding security
- Link Aggregation Control Protocol (LACP)
- Ruijie Cloud remote management
- Web GUI, CLI and SNMP management support
- Intelligent fan and power management
- Designed for Wi-Fi 6/6E/7 and high-density campus networks
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