Product Overview
Built for the demanding environment of passenger rail and tram systems, the AXIS P3947-R M12 is a 5MP onboard dome camera supplied in a bulk 10-pack and rated specifically for rolling stock deployment. With an IP66, IP67, and IK10-rated housing, it withstands the vibration, condensation, and physical contact typical of carriage interiors, while operating reliably across a wide temperature range of -30 to 55°C. The fixed 3.6 mm M12 lens delivers an 83-degree horizontal field of view, making it well suited to covering passenger seating areas, vestibules, and entrance zones. Lightfinder 2.0 and Forensic WDR handle the fluctuating lighting conditions common on rail vehicles without requiring supplemental IR. Onboard AI analytics run on the CV75 deep learning chipset, and the Axis Edge Vault cybersecurity platform provides hardware-level protection across the entire fleet. The 10-pack format supports large-scale transit procurement and staged carriage rollouts.
Key Capabilities
Rolling Stock Compliance
Certified for rail and tram deployment, the P3947-R M12 is designed to handle carriage vibration, wide temperature swings from -30 to 55°C, and the condensation challenges found in vehicle interiors, making it a purpose-built solution rather than a general-purpose camera repurposed for transit use.
5MP Resolution with Lightfinder 2.0
At 2592×1944 pixels, this camera captures fine facial and clothing detail in passenger areas. Lightfinder 2.0 delivers colour images at a minimum illumination of 0.16 lux, keeping footage useful across tunnel segments, dimly lit platforms, and varying interior lighting without built-in IR emitters.
IP66, IP67 and IK10 Protection
Dual ingress protection ratings cover both dust sealing and water ingress from multiple angles, while IK10 vandal resistance ensures the camera housing withstands deliberate impact. This combination is essential for passenger environments where cameras are within reach of the public.
Axis Edge Vault Cybersecurity
The hardware-based Axis Edge Vault platform includes a CC EAL 6+ secure element, trusted execution environment, Axis device ID, signed video, secure boot, and AES-XTS-Plain64 256-bit encrypted filesystem. This level of protection is critical for transit authorities managing network-connected cameras across public infrastructure.
CV75 Deep Learning Chipset
The onboard CV75 processor runs AI-based analytics directly on the camera. Pre-installed applications include AXIS Video Motion Detection and active tampering alarm. The AXIS Camera Application Platform also supports third-party analytics, enabling passenger counting, queue detection, or other transit-specific use cases without additional hardware.
Replaceable M12 Lens
The M12 lens mount allows field replacement if the lens is damaged or if a different field of view is needed for a specific carriage layout. This serviceability advantage reduces the total cost of ownership across a large fleet deployment where individual cameras may need maintenance over time.
Best For
- Passenger Rail Carriages: Rolling stock certification and IK10 vandal resistance make this camera suitable for passenger seating areas where the camera is exposed to public reach and variable lighting conditions.
- Tram and Light Rail Interiors: The -30 to 55°C operating range and IP66/IP67 ratings handle the temperature swings and condensation common in tram systems that cycle between indoor depots and outdoor routes.
- Fleet-Scale Procurement: Supplied as a 10-pack, this product is structured for transit operators equipping multiple carriages simultaneously, reducing per-unit cost and simplifying procurement logistics.
- Cybersecurity-Sensitive Transit Networks: The Axis Edge Vault platform with signed video and encrypted filesystem meets the security requirements of government and public transport operators managing network-connected surveillance infrastructure.
Why Choose the AXIS P3947-R M12
The AXIS P3947-R M12 is one of the few dome cameras purpose-built and certified for rolling stock environments rather than adapted from a general commercial range. Its combination of IP66, IP67, and IK10 ratings with a -30 to 55°C operating range addresses the specific stresses of rail deployment: vibration, condensation cycles, and direct public access to the camera housing. The 5MP sensor with Lightfinder 2.0 at 0.16 lux provides usable colour footage across the uneven interior lighting of passenger carriages without relying on IR illumination. The CV75 deep learning chipset enables onboard analytics that reduce reliance on server-side processing across a distributed fleet. Hardware-level cybersecurity through Axis Edge Vault sets a high standard for infrastructure-grade deployments. Available through Security Wholesalers, the 10-pack format is structured to support staged carriage rollouts or full-fleet upgrades efficiently.
Buyer Decision Tips
Lighting Conditions on Rolling Stock: The P3947-R M12 uses Lightfinder 2.0 and Forensic WDR rather than built-in IR to handle low-light conditions. This suits most passenger carriage interiors where ambient lighting is present but variable. If your carriages include sections that are genuinely dark with no interior lighting at all, confirm that Lightfinder 2.0 at 0.16 lux minimum illumination will be sufficient before committing to a full fleet order.
Microphone Use and Compliance: The P3947-R M12 includes a built-in microphone with a physical on/off switch that mechanically disables recording when required. Transit operators should confirm whether audio recording is permitted under applicable privacy regulations for their routes and regions before enabling the microphone. The physical switch provides a hardware-level assurance that audio capture is off, not just a software setting.
Key Features & Technical Specifications
| Model |
AXIS P3947-R M12 3.6 mm (10-pack) |
| SKU |
03381-021 |
| Resolution |
5 MP (2592 x 1944) |
| Lens |
3.6 mm fixed focal length, f/2.0, M12 mount (replaceable) |
| Horizontal Field of View |
83° |
| Vertical Field of View |
60.1° |
| Minimum Illumination |
0.16 lux (colour), Lightfinder 2.0 |
| Wide Dynamic Range |
Forensic WDR |
| IR Illumination |
None |
| Ingress Protection |
IP66, IP67 |
| Vandal Rating |
IK10 |
| Power |
PoE Class 2 |
| Operating Temperature |
-30 to 55°C |
| Chipset |
CV75 deep learning processor |
| Onboard Analytics |
AXIS Video Motion Detection, active tampering alarm; supports AXIS Camera Application Platform |
| Audio |
Built-in microphone with physical on/off switch; audio-in support |
| Local Storage |
microSD / microSDHC / microSDXC |
| Cybersecurity |
Axis Edge Vault, CC EAL 6+ secure element, TEE, Axis device ID, signed video, secure boot, AES-XTS-Plain64 256-bit encrypted filesystem |
| Compliance |
Rolling stock certified |
| Pack Quantity |
10 cameras per pack |
Ideal Use Cases
Commuter Train Carriages
The 83-degree horizontal field of view combined with 5MP resolution covers passenger seating rows in standard carriage widths, while IK10 protection guards against vandalism during peak service hours when cameras are in close proximity to standing passengers.
Tram Interiors
Trams frequently transition between outdoor conditions and enclosed stops, creating significant temperature variation. The -30 to 55°C operating range and IP67 moisture rating handle condensation and thermal cycling without performance degradation between routes.
Carriage Vestibules and Doorways
Vestibule zones experience the highest foot traffic and are the most common locations for incidents. Lightfinder 2.0 at 0.16 lux minimum illumination maintains colour image quality in these areas even when door-open events temporarily reduce interior brightness.
Fleet Cybersecurity Programmes
Transit authorities operating network-connected surveillance across large fleets can use the Axis Edge Vault platform, including signed video and AES-XTS-Plain64 256-bit encrypted storage, to meet infrastructure security standards and protect footage integrity from tampering or interception.
Third-Party Analytics Deployment
The AXIS Camera Application Platform allows transit operators to deploy third-party analytics such as passenger counting or occupancy monitoring directly on the camera’s CV75 chipset, eliminating the need for dedicated edge servers on individual carriages.
Choosing the Right Model
- Choose this model if: You are equipping passenger rail carriages, trams, or other rolling stock vehicles and need a camera certified for that environment, with IK10 vandal resistance, IP66/IP67 ingress protection, a -30 to 55°C operating range, and hardware cybersecurity built in. The 10-pack format suits fleet-scale procurement where multiple carriages are being outfitted in a single project or staged rollout.
- Choose a different model if: Your installation is a fixed indoor environment such as a station concourse, platform, or office building where rolling stock certification is not required. A standard indoor dome camera without the specialised environmental ratings would offer a broader range of lens options and potentially lower cost per unit for non-vehicle installations.
- Choose a different model if: Your carriage zones include genuinely unlit areas such as equipment bays or dark freight sections where no ambient lighting exists. The P3947-R M12 relies on Lightfinder 2.0 and does not include built-in IR, so a camera with active infrared illumination would be more appropriate for those specific zones.
FAQs
- What does rolling stock compliance mean for the AXIS P3947-R M12?
Rolling stock compliance means the camera has been tested and certified to operate reliably in rail and tram vehicle environments. This covers resistance to vibration from track and mechanical sources, the wide operating temperature range of -30 to 55°C, and the ingress protection needed for a vehicle that cycles between indoor and outdoor conditions. It is a certification for use inside moving rail vehicles, not just a general ruggedisation claim.
- Does the AXIS P3947-R M12 have night vision or IR illumination?
No. The P3947-R M12 does not include built-in infrared illumination. It uses Lightfinder 2.0 to deliver colour footage at a minimum illumination of 0.16 lux, which suits most passenger carriage interiors where interior lighting is present. If your installation requires imaging in genuinely dark, unlit spaces, a camera with active IR would be more appropriate for those zones.
- Can I run passenger counting or other analytics on this camera?
Yes. The CV75 deep learning chipset enables onboard AI processing. Pre-installed applications include AXIS Video Motion Detection and active tampering alarm. The AXIS Camera Application Platform supports approved third-party applications including passenger counting, queue monitoring, and other transit-specific analytics that run directly on the camera without requiring a dedicated edge server in each carriage.
- How does the microphone work, and can it be turned off?
The camera includes a built-in microphone with a physical on/off switch. The switch mechanically disconnects the microphone, providing a hardware-level guarantee that audio recording is not occurring, independent of any software setting. This is important for transit operators who must demonstrate compliance with audio recording regulations across different route jurisdictions.
- What cybersecurity features does the P3947-R M12 include?
The camera uses the Axis Edge Vault platform, which includes a CC EAL 6+ rated secure element, a trusted execution environment, Axis device ID for authenticated identity, signed video to verify footage has not been tampered with, secure boot, and an AES-XTS-Plain64 256-bit encrypted filesystem for local storage. These features address the security requirements of transit authorities operating network-connected cameras on public infrastructure.
- Why is this product sold as a 10-pack rather than individually?
The 10-pack format reflects the typical procurement pattern for rolling stock projects, where multiple carriages are outfitted simultaneously. Fleet operators equipping trains with 4 to 6 cameras per carriage will often require dozens or hundreds of units per project. The 10-pack simplifies purchasing, logistics, and inventory management for transit integrators and operators. For single-camera or small-quantity requirements, this product may not be the most practical format. Security Wholesalers can advise on procurement options suited to your project scale.
- Can footage from the P3947-R M12 be stored locally on the camera?
Yes. The camera supports microSD, microSDHC, and microSDXC card storage. This is particularly useful in rolling stock applications where a continuous network connection to a central recording server may not always be available. Local storage provides a buffer for footage that can be synced or retrieved when the vehicle returns to a depot with network access.
Additional Information
AXIS 03381-021 Datasheet
