Ajax MultiRelay Fibra (Fibra - Wired)
- 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, 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)
MultiRelay Fibra is a sophisticated relay module crafted to bring complex wiring diagrams to life within the Ajax ecosystem. Equipped with four independent relays boasting potential-free (dry) contacts, it allows for the autonomous control of four separate circuits. This versatility enables the integration of a variety of appliances, electrical mechanisms, and even third-party security devices, all harmoniously controlled through Ajax's smart automation scenarios. Designed for safety and efficiency, MultiRelay Fibra implements protective measures against overheating by automatically deactivating any relay that exceeds +80°C. Its integration into the Ajax system not only facilitates remote control and configuration but also ensures the highest standards of security, evidenced by its Grade 3 certification. The module's ability to operate with both AC and DC circuits, alongside its minimal power consumption, makes it an indispensable component for sophisticated automation setups. Fibra technology underscores.
Main Features
- Four-channel relay with potential-free contacts for remote power supply control
- Advanced automation for enhanced safety
- Protection against overheating: Deactivates relays if temperature exceeds +80°C
- Automation scenarios and informative in-app notifications
- Grade 3 certification with potential-free contacts for AC and DC circuits
- Low power consumption: Up to 0.18 W
- Fibra wired communication: Encrypted, two-way communication with short-circuit detection
- Steady contact state: Maintains the current state after power outages
- Tamper alarm when installed into Case
- Compatible with Hub Hybrid (2G/4G)
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