Ruijie Reyee NIS-GE-SFP-10KM-SM1310 Gigabit SFP Optical Transceiver Module (1310nm, 10km, Single-Mode)
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 Reyee NIS-GE-SFP-10KM-SM1310 Gigabit SFP Optical Transceiver Module (1310nm, 10km, Single-Mode)
The Ruijie Reyee NIS-GE-SFP-10KM-SM1310 is a high-performance 1.25Gbps SFP fibre transceiver module designed to extend network connectivity over long-distance single-mode fibre links. Operating at a 1310nm wavelength (TX/RX), this module enables stable and reliable data transmission over distances of up to 10 kilometres, making it suitable for inter-building connectivity, campus networks, ISP uplinks and CCTV backbone systems. It is designed for plug-and-play installation into standard SFP ports on compatible Ruijie switches and networking devices, allowing flexible deployment without configuration. The module ensures low latency, stable optical performance and high resistance to electromagnetic interference compared to copper cabling. With support for hot-swappable installation, the transceiver can be inserted or removed without shutting down the system, improving maintenance efficiency and network uptime. The NIS-GE-SFP-10KM-SM1310 is widely used in enterprise networks, surveillance systems, industrial networking and fibre backbone infrastructure, where long-distance, high-stability communication is required.
KEY FEATURES
- 1.25Gbps Gigabit SFP optical transceiver
- 1310nm wavelength (single-mode fibre)
- Supports transmission distances up to 10km
- LC duplex fibre interface
- Hot-swappable SFP module
- Low latency and stable optical performance
- High resistance to EMI and interference
- Plug-and-play installation
- Compatible with Ruijie switches and standard SFP slots
- Ideal for CCTV backbone, enterprise LAN and fibre uplinks
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