AXIS T8154 60W SFP Midspan (02740-001) - High PoE Media Converter with SFP Fibre and RJ45 Input
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)
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AXIS T8154 60W SFP Midspan (02740-001) – High PoE Media Converter with SFP Fibre and RJ45 Input.
The AXIS T8154 60W SFP Midspan (02740-001) is a compact and versatile power-over-Ethernet solution designed for professional surveillance and network installations. It combines a media converter and PoE injector in a single device, allowing data input via either SFP fibre or RJ45 Ethernet while delivering up to 60W High PoE to connected devices. This makes it ideal for remote installations where fibre backhaul is used, and power needs to be injected at the edge. Its plug-and-play design simplifies deployment, reduces cabling complexity, and ensures reliable power delivery for AXIS cameras, radars, and other network devices.
Key Features:
60W High Power over Ethernet (IEEE 802.3bt compatible)
Integrated SFP slot for fibre uplink connectivity
RJ45 Ethernet input for flexible network integration
Combines media conversion and PoE injection in one unit
Plug-and-play installation with no configuration required
Supports AXIS network cameras, PTZs, and radars
Reduces cabling in remote or hard-to-reach installations
100–240V AC universal power input
Suitable for industrial and outdoor surveillance deployments
Rack, wall, or shelf mounting options (with accessories)
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