Product Overview
Transit operators deploying cameras across rail fleets will find the AXIS P3947-R purpose-built for exactly that environment. This 5MP onboard dome camera is engineered specifically for installation inside trains and trams, combining IK10 vandal resistance and dual IP66/IP67 sealing with an operating range of -30 to 55°C to handle the demands of vehicle interiors across all seasons. The fixed 2.8 mm lens delivers a wide 98.8° horizontal field of view, capturing full carriage interiors from a single ceiling-mount position. Equipped with Lightfinder 2.0 and Forensic WDR, it maintains usable colour footage in the variable and challenging lighting conditions typical of transit vehicles. A CV75 deep learning chipset enables AXIS Camera Application Platform (ACAP) support for onboard analytics, while Axis Edge Vault provides built-in hardware-level cybersecurity. This SKU ships as a 10-unit bulk pack, making it suited to multi-carriage fleet deployments.
Key Capabilities
5MP Resolution at 60 fps
A 2592×1944 resolution combined with up to 60 frames per second captures fast movement with enough detail to identify individuals and incidents across a transit carriage, supporting post-event review and evidential requirements.
Lightfinder 2.0 and Forensic WDR
Transit vehicles experience extreme lighting variation, from tunnel darkness to bright station platforms. Lightfinder 2.0 produces colour imagery down to 0.16 lux, while Forensic WDR manages high-contrast scenes without blowing out highlights or losing shadow detail.
IK10 Vandal Resistance
Rated IK10 for resistance to deliberate impact, the P3947-R is built to withstand the physical abuse common in public transit environments, reducing the risk of camera damage and service outages across a fleet deployment.
Axis Edge Vault Cybersecurity
Hardware-based Axis Edge Vault protects device credentials, cryptographic keys, and secure boot at the chip level. This is particularly relevant for transit operators managing connected camera networks across a fleet, where device integrity and secure identity matter.
CV75 Deep Learning Chipset with ACAP
The onboard CV75 chipset supports AXIS Camera Application Platform, allowing operators to run third-party analytics applications directly on the camera. This reduces reliance on centralised server processing for event detection within vehicle environments.
Wide Thermal Operating Range
Rated to operate from -30 to 55°C, the P3947-R handles the temperature extremes found in unheated rolling stock during winter storage and in vehicle interiors during summer operation, without requiring climate-controlled enclosures.
Best For
- Fleet-Scale Rail Deployments: The 10-unit bulk pack reduces per-unit procurement cost and simplifies ordering across multi-carriage or multi-vehicle transit projects.
- Carriage Interior Coverage: The wide 98.8° horizontal field of view from a 2.8 mm fixed lens allows a single camera to monitor the full width of a train or tram saloon from a ceiling position.
- High-Vandalism Transit Environments: IK10 vandal resistance and IP67 sealing protect the camera against physical impact and ingress in environments where passengers may interact aggressively with fittings.
- Cybersecurity-Sensitive Installations: Axis Edge Vault hardware security makes the P3947-R suitable for transit operators with strict network security policies or government compliance obligations around connected devices.
Why Choose the AXIS P3947-R
The AXIS P3947-R is not a repurposed general-purpose dome. It is a camera designed from the ground up for onboard transportation use, meeting the regulation requirements of the rail and transit industry. The combination of IP66, IP67, and IK10 ratings provides a level of environmental and impact protection that standard indoor domes do not offer. The -30 to 55°C operating range ensures it functions reliably through seasonal extremes without additional protection. Lightfinder 2.0 at 0.16 lux minimum colour illumination handles carriage lighting without requiring supplemental IR, while the CV75 chipset keeps analytics processing onboard. Axis Edge Vault addresses the growing requirement for verified device security in connected transit networks. Available through Security Wholesalers as a 10-unit pack, the P3947-R provides a cost-effective path to standardised, compliant fleet camera upgrades at scale.
Buyer Decision Tips
Lighting Dependency: The P3947-R has no built-in IR illumination. Its Lightfinder 2.0 technology performs well in low ambient light down to 0.16 lux, but the camera relies entirely on existing vehicle lighting. Before deploying, confirm that carriage lighting levels are sufficient at night and in tunnel segments. If the vehicle has very dark interiors during service, supplemental lighting may be required to achieve usable footage.
Bulk Pack Commitment: This SKU is supplied as a fixed 10-unit pack. It is best suited to projects with a confirmed camera count that aligns with multiples of 10. For smaller installations requiring only 1 to 3 cameras, check whether a single-unit SKU variant is available, as the 10-pack format is intended for fleet-scale procurement.
Key Features & Technical Specifications
| Model |
AXIS P3947-R RJ45 2.8 mm (10-piece bulk pack) |
| SKU |
03378-021 |
| Resolution |
5MP – 2592 x 1944 |
| Maximum Frame Rate |
60 fps |
| Lens Type |
Fixed focal length, M12 mount, replaceable |
| Focal Length |
2.8 mm |
| Aperture |
f/2.0 |
| Horizontal Field of View |
98.8° |
| Vertical Field of View |
73.9° |
| Minimum Colour Illumination |
0.16 lux |
| IR Illumination |
None – Lightfinder 2.0 technology |
| Wide Dynamic Range |
Forensic WDR |
| Chipset |
CV75 Deep Learning |
| Application Platform |
AXIS Camera Application Platform (ACAP) |
| Cybersecurity |
Axis Edge Vault hardware security |
| Audio |
Built-in microphone with physical on/off switch; audio detection; external audio input supported; max SPL 128 dB; frequency range 100-10,000 Hz |
| IP Rating |
IP66, IP67 |
| Vandal Rating |
IK10 |
| Power |
PoE IEEE 802.3af Type 1 Class 2 – typical 3.55 W, max 4.42 W |
| Connector |
RJ45 |
| Local Storage |
SD card slot |
| Operating Temperature |
-30 to 55°C |
| Pack Quantity |
10 cameras per pack |
| Intended Environment |
Onboard transit vehicles – trains and trams; complies with transportation industry regulations |
Ideal Use Cases
Train Carriage Interiors
Ceiling-mounted in passenger saloons, the 98.8° horizontal FOV captures full carriage width from a single camera position. IK10 and IP67 ratings handle the vibration, condensation, and physical contact typical of train environments.
Tram and Light Rail Vehicles
The compact dome form factor suits the lower ceiling heights of tram vehicles. Lightfinder 2.0 at 0.16 lux minimum illumination maintains colour footage as trams move between lit stops and darker street sections.
Fleet Upgrade Programmes
Supplied as a 10-unit bulk pack, the P3947-R is suited to operators standardising camera hardware across a rolling stock fleet. Consistent model deployment simplifies maintenance, firmware management, and spare parts logistics.
High-Traffic Public Transit Vehicles
In heavily used peak-hour services, IK10 vandal resistance and a durable housing protect the camera against accidental and deliberate damage, while audio detection via the built-in microphone supports incident identification.
Cybersecurity-Compliant Transport Networks
Axis Edge Vault provides hardware-level protection for device credentials and secure boot, addressing the network security requirements of public transport operators working under government cybersecurity frameworks and procurement standards.
Choosing the Right Model
- Choose this model if: You are deploying cameras inside trains or trams at fleet scale, need transportation-regulation compliance, require IK10 vandal resistance, Axis Edge Vault cybersecurity, and wide-angle 5MP coverage from a single ceiling position, and your procurement aligns with 10-unit increments.
- Choose a different model if: You need built-in IR illumination for use in completely unlit environments, as the P3947-R relies on ambient or vehicle lighting and has no onboard IR. If your installation is a standard indoor building environment rather than a transit vehicle, a general-purpose indoor dome without the transit-specific certifications may offer better value and a wider range of mounting accessories.
- Choose a different model if: Your project requires fewer than 10 cameras and a single-unit purchase is more practical. The 10-pack format is a fleet procurement SKU and not cost-efficient for small installations.
FAQs
- What does the 10-unit pack format mean for ordering?
SKU 03378-021 is supplied as a fixed 10-piece bulk pack. Each order contains 10 AXIS P3947-R cameras with RJ45 connectors and 2.8 mm lenses. This format is intended for fleet-scale deployments where operators need a consistent, standardised model across multiple vehicles. Single-unit SKUs may be available separately if a smaller quantity is required.
- Does the P3947-R have IR night vision for dark vehicle interiors?
No. The P3947-R does not have built-in IR illumination. It uses Axis Lightfinder 2.0 technology, which captures colour images down to a minimum illumination of 0.16 lux. This is effective where the vehicle’s own lighting is operational, but in a fully unlit carriage the camera will not produce usable footage without an additional light source.
- What does IK10 mean and why is it relevant for transit use?
IK10 is the highest rating under the IEC 62262 standard, indicating the housing can withstand an impact of 20 joules. In a transit context, this protects the camera against direct physical contact from passengers, deliberate tampering, and the incidental impacts that occur during cleaning and maintenance of vehicle interiors.
- What is Axis Edge Vault and why does it matter for a connected transit network?
Axis Edge Vault is a hardware-based secure element built into the camera that protects cryptographic keys, device certificates, and the secure boot process. For transit operators connecting cameras to wider network infrastructure, it provides a verified chain of trust from the device level, reducing the risk of credential theft or unauthorised firmware modification on deployed cameras.
- Can analytics applications run directly on the camera?
Yes. The CV75 deep learning chipset supports the AXIS Camera Application Platform (ACAP), which allows compatible third-party and Axis-developed analytics applications to be installed and run on the camera itself. This enables onboard event detection without requiring the full video stream to be processed at a central server.
- How is the camera powered and connected?
The P3947-R in this SKU variant uses an RJ45 connector and is powered via Power over Ethernet to the IEEE 802.3af Type 1 Class 2 standard. Typical power draw is 3.55 W with a maximum of 4.42 W. A single Cat5e or Cat6 cable to a PoE-capable switch or injector provides both power and data, which simplifies installation in vehicle cable runs.
- Is the P3947-R available as a single-unit purchase through Security Wholesalers?
The 03378-021 SKU offered through Security Wholesalers is specifically the 10-unit bulk pack format. If your project requires individual units rather than a fleet quantity, contact Security Wholesalers directly to confirm whether a single-camera variant of the P3947-R is available for your application.
Additional Information
AXIS 03378-021 Datasheet
