Ruijie RG-ES118GS-P-L 16-PORT 1000MBPS + 2 GIGABIT SFP PORTS
- CCTV Lens Guide
- Hard Drive Size Guide
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)
Ruijie RG-ES118GS-P-L — 18-Port Gigabit Unmanaged PoE+ Switch
The Ruijie RG-ES118GS-P-L is an 18-port unmanaged PoE+ switch designed for CCTV networks, small businesses, and environments requiring both data and power over Ethernet. It includes 16 Gigabit PoE/PoE+ RJ45 ports and 2 Gigabit SFP uplink ports for flexible expansion and high-speed backbone connectivity.
With a total PoE power budget of 247 W, the switch can power multiple IP cameras, access points, and VoIP phones simultaneously. Its plug-and-play design requires no configuration, while features such as auto-negotiation, auto-MDI/MDIX, and port isolation ensure stable and secure operation. The RG-ES118GS-P-L delivers a switching capacity of 36 Gbps and a forwarding rate of 26.8 Mpps, making it suitable for high-traffic environments.
The metal chassis provides durability and efficient heat dissipation, and built-in surge protection helps safeguard connected devices.
Key Features
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16 × Gigabit PoE/PoE+ RJ45 ports
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2 × Gigabit SFP uplink ports
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Total PoE power budget: 247 W
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Unmanaged, plug-and-play operation
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Port isolation and flow-control options
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Switching capacity: 36 Gbps
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Forwarding rate: 26.8 Mpps
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Auto-negotiation and auto-MDI/MDIX support
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Metal chassis with surge protection
