Ruijie Reyee RP028-2400500 Passive PoE Injector 24V 0.5A (12W) for Wireless Bridge Devices
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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The Ruijie Reyee RP028-2400500 is a compact passive PoE power injector used to supply both data and electrical power over a single Ethernet cable to compatible wireless bridge devices. It converts standard AC input into a 24V DC output (0.5A / 12W) and injects power into a 10/100Mbps Ethernet line, allowing installation of wireless bridge units in locations where a separate power socket is not available. This device is commonly used with Ruijie Reyee point-to-point wireless bridges such as RG-EST series units, especially in CCTV systems, building-to-building connections, warehouses, and remote network extensions. As a passive PoE injector, it continuously supplies power without negotiation, so it must only be used with devices that explicitly support 24V passive PoE input. It is a simple plug-and-play solution designed for installers who need reliable low-power PoE delivery without using a full PoE switch. The unit is compact, easy to install, and typically supplied as a single-port injector (data in + data/power out) for straightforward deployment.
KEY FEATURES
- Passive PoE injector (non-standard IEEE PoE)
- 24V DC output, 0.5A (12W power supply)
- 1 × 10/100Mbps Ethernet input port
- 1 × 10/100Mbps PoE output port (data + power)
- Designed for Ruijie Reyee wireless bridge devices
- Plug-and-play installation (no configuration required)
- Ideal for CCTV and point-to-point wireless links
- Compact and lightweight design
- Suitable for locations without local power sockets
- Stable power delivery for low-power outdoor units
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