Product Overview
Built specifically for onboard vehicle surveillance, the Axis P3945-R M12 2.8mm is a 2MP indoor dome camera engineered to meet the demands of rail, tram, and transit environments. Certified to EN 50155 and EN 45545, it is purpose-designed for installation inside passenger carriages, driver cabs, and transit vehicles where compliance with transportation-industry regulations is mandatory. The 2.8mm M12 lens delivers a 99.2-degree horizontal field of view across a wide cabin interior, while Lightfinder 2.0 with Forensic WDR handles the low-light conditions common in vehicle interiors without requiring any built-in IR. Powered by the Axis CV75 deep learning chipset, the camera supports on-camera AI analytics through the AXIS Camera Application Platform. Axis Zipstream compression in both H.264 and H.265 reduces storage and bandwidth demands during continuous recording, and the IK10 vandal-resistant, IP66/IP67-rated housing handles the vibration, temperature swings, and passenger contact typical of active transit service.
Key Capabilities
EN 50155 and EN 45545 Transportation Compliance
Certified to meet the European rail and tram standards required for onboard deployment. This is not a general-purpose camera adapted for vehicles – it is built from the ground up to satisfy the electrical and fire-safety specifications that transit authorities and rolling stock integrators require.
Lightfinder 2.0 with Forensic WDR
Achieves a minimum illumination of 0.16 lux, making it capable of capturing usable colour footage in dimly lit passenger compartments without any IR illumination. Forensic WDR handles the contrast between brightly lit station platforms visible through windows and darker interior spaces.
IK10 Vandal Resistance with IP66/IP67 Sealing
The dome housing withstands IK10-rated impacts, relevant in public transit spaces where cameras can be subject to deliberate interference. IP66 and IP67 dual ratings provide protection against dust ingress and high-pressure water wash-down during vehicle cleaning cycles.
CV75 Deep Learning Chipset with ACAP Support
The onboard CV75 chipset enables AI-based video analytics to run directly on the camera. Through the AXIS Camera Application Platform, transit operators can deploy third-party or Axis-developed applications for passenger counting, intrusion detection, or other analytics without additional server hardware.
Axis Zipstream in H.264 and H.265
Zipstream dynamically reduces bitrate during low-activity moments while preserving full detail when motion or relevant events occur. For onboard recording systems with limited storage capacity, this means longer retention periods and reduced wear on storage media without sacrificing evidential quality.
Axis Edge Vault Cybersecurity
Edge Vault provides a hardware-based secure element that protects device credentials, signed firmware, and cryptographic keys. For transit operators connecting cameras to wider network infrastructure, this reduces the risk of tampering with or spoofing the camera device at the hardware level.
Best For
- Rail and Tram Carriage Interiors: EN 50155 and EN 45545 certification makes this the correct camera for onboard passenger compartment installations where compliance documentation is required by the operator or manufacturer.
- Low-Light Vehicle Cabins: Lightfinder 2.0 at 0.16 lux minimum illumination captures colour footage in overhead-lit cabins, tunnels, and poorly lit stops without any supplemental IR, keeping the installation profile clean and unobtrusive.
- High-Throughput Passenger Areas Requiring Analytics: The CV75 chipset and ACAP support allow operators to run passenger counting or occupancy analytics directly on the camera, reducing reliance on centralised server processing in rolling stock environments.
- Fleet Operators with Storage Constraints: Zipstream compression in both H.264 and H.265, combined with onboard memory card storage, suits operators who need efficient local recording across a fleet of vehicles with limited data infrastructure.
Why Choose the Axis P3945-R M12 2.8mm
The Axis P3945-R M12 2.8mm addresses a specific requirement that most standard indoor dome cameras cannot satisfy: documented compliance with EN 50155 and EN 45545 for onboard transportation deployment. A general-purpose dome camera mounted in a train carriage may deliver adequate image quality under normal conditions, but it will not carry the certification necessary for formal approval by rolling stock manufacturers or transit authorities operating under European rail standards. Beyond compliance, this model combines an extended operating temperature range of -30 to 55 degrees Celsius with IK10 and dual IP66/IP67 ratings, addressing the mechanical and environmental stresses of active vehicle service. The integration of Edge Vault cybersecurity protects the device in networked transit environments. Available through Security Wholesalers, the P3945-R M12 2.8mm is backed by Axis Communications’ reputation for firmware longevity and ongoing platform support, which matters when cameras are deployed across a fleet expected to remain in service for a decade or more.
Buyer Decision Tips
Confirm Your Compliance Requirement Before Specifying: The P3945-R M12 2.8mm is explicitly certified to EN 50155 and EN 45545. If your project requires these certifications, this model meets them. If your installation is a fixed indoor environment such as a station concourse, waiting room, or office, a standard indoor dome without transportation certification will typically be more cost-effective for that application. This camera is engineered for and priced to serve the onboard vehicle segment.
Lens and Field of View Planning for Vehicle Interiors: The 2.8mm M12 lens provides a 99.2-degree horizontal field of view, which is well suited to covering the full width of a standard passenger carriage aisle from a ceiling-mounted position. For longer carriage lengths requiring coverage of a full end-to-end aisle, consider the mounting height and camera spacing required to maintain face-level detail at the far end of the coverage zone. The M12 lens mount is fixed – this is not a varifocal model, so physical camera placement must be planned carefully during the design stage.
Key Features & Technical Specifications
| Model |
Axis P3945-R M12 2.8mm |
| Part Number |
03376-001 |
| Resolution |
2 MP (1920 x 1080) |
| Lens Type |
M12 fixed, 2.8 mm |
| Aperture |
F2.0 |
| Horizontal Field of View |
99.2 degrees |
| Vertical Field of View |
55.4 degrees |
| Minimum Illumination |
0.16 lux (colour, with Lightfinder 2.0 and Forensic WDR) |
| Built-in IR |
None |
| Video Compression |
H.265 (HEVC) Main Profile, H.264 (AVC) Main and High Profiles |
| Maximum Frame Rate |
60 fps |
| Bandwidth Optimisation |
Axis Zipstream (H.264 and H.265) |
| Chipset |
Axis CV75 deep learning |
| Analytics Platform |
AXIS Camera Application Platform (ACAP) |
| Audio |
Built-in microphone, audio-in, audio detection, physical microphone switch |
| Local Storage |
Memory card slot (yes) |
| Power |
PoE IEEE 802.3af Type 1 Class 2 |
| IP Rating |
IP66, IP67 |
| IK Rating |
IK10 |
| Operating Temperature |
-30 to 55 degrees Celsius |
| Transportation Standards |
EN 50155, EN 45545 |
| Cybersecurity |
Axis Edge Vault hardware security |
Ideal Use Cases
Passenger Train Carriages
EN 50155 and EN 45545 compliance supports formal approval for installation inside long-haul and commuter rail rolling stock. The 99.2-degree FOV covers the width of a standard carriage aisle from a ceiling-mounted position, and the -30 to 55 degree operating range handles the full seasonal temperature spread experienced in Australian and international rail service.
Light Rail and Tram Cabins
The compact dome profile and IK10 vandal resistance suit the confined cabin environments of trams and light rail vehicles, where cameras are within reach of passengers. Lightfinder 2.0 at 0.16 lux maintains usable colour footage as vehicles move between bright outdoor stops and darker tunnel sections without switching to IR mode.
Fleet Operators Requiring Onboard Analytics
The CV75 chipset and ACAP support allow transit operators to run passenger counting or occupancy monitoring directly on the camera. This removes the need for centralised analytics servers in vehicle-based systems where network connectivity to back-office infrastructure may be intermittent.
Vehicles with Wash-Down Maintenance Cycles
Dual IP66 and IP67 ratings mean the camera can withstand the high-pressure cleaning routinely applied to rolling stock between services. This eliminates the need for special protective covers or camera removal during vehicle maintenance.
Networked Fleet Surveillance with Cybersecurity Requirements
Axis Edge Vault hardware security protects device credentials and cryptographic keys on the camera itself. For transit operators connecting vehicle cameras to wider operational technology networks, this reduces the attack surface at the device level and supports compliance with infrastructure cybersecurity frameworks.
Choosing the Right Model
- Choose this model if: Your project requires documented EN 50155 and EN 45545 certification for onboard vehicle installation, the -30 to 55 degree operating range matches your operating environment, and you need a 2.8mm wide-angle lens to cover the breadth of a passenger compartment from ceiling height.
- Choose a different model if: Your installation is in a fixed indoor building environment such as a station concourse, retail space, or office, where transportation compliance certification is not required. A standard indoor dome camera will deliver comparable image quality and analytics capability without the cost premium associated with rail-certified hardware. Similarly, if your use case requires long-range IR night vision for areas that are unlit at night, this model has no built-in IR and relies entirely on ambient or artificial light sources.
FAQs
- What does EN 50155 certification mean and why does it matter for this camera?
EN 50155 is the European standard specifying requirements for electronic equipment used on rolling stock, covering areas such as voltage fluctuations, vibration, shock, humidity, and temperature cycling. Cameras used onboard trains and trams in many markets must be certified to this standard for formal acceptance by the rolling stock manufacturer or transit authority. The P3945-R M12 2.8mm meets this requirement, along with EN 45545 for railway fire protection.
- Does this camera have built-in IR night vision?
No. The Axis P3945-R M12 2.8mm does not include built-in IR illumination. It relies on its Lightfinder 2.0 sensor with a minimum illumination rating of 0.16 lux to capture colour footage in low-light conditions. This is well suited to vehicle interiors that maintain some level of ambient or artificial lighting, but the camera will not produce a usable image in complete darkness without an external light source.
- Can I run analytics applications on this camera?
Yes. The CV75 deep learning chipset enables on-camera analytics, and the camera supports the AXIS Camera Application Platform, allowing Axis-developed or third-party ACAP-compatible applications to be installed directly on the device. Common applications for transit use include passenger counting, occupancy monitoring, and intrusion or loitering detection, all running without requiring a separate analytics server.
- What is Axis Edge Vault and does it affect installation?
Axis Edge Vault is a hardware-based security module built into the camera that protects the device identity, signed firmware verification, and cryptographic key storage at the chip level. It does not change the physical installation process but is relevant for operators working under cybersecurity frameworks that require device-level authentication. It operates transparently once the camera is commissioned on the network.
- How does Zipstream reduce storage in a fleet recording environment?
Axis Zipstream analyses each video frame and reduces the bitrate dynamically during low-activity periods, such as an empty carriage at night, while maintaining full detail during events of interest. For onboard recording systems where local storage capacity is limited and regular data offload may not always be practical, this can significantly extend the available recording window without requiring larger or additional storage media.
- What power does this camera require and is it compatible with standard PoE switches?
The camera is powered by PoE to IEEE 802.3af Type 1 Class 2. This is a standard PoE class supported by most managed and unmanaged PoE switches, so no specialised power injector is required in most installations. Confirm that the PoE switch or injector used in the vehicle’s network cabinet meets IEEE 802.3af to ensure correct operation.
- Does this camera support two-way audio for passenger communication?
The P3945-R M12 2.8mm includes a built-in microphone and audio-in port, with audio detection capability and a physical microphone switch. However, two-way audio is not confirmed for this model. It is not designed or marketed as a passenger communication device. Its audio capability is intended for incident documentation and event detection, not for real-time intercom use.
- Where can I purchase the Axis P3945-R M12 2.8mm and is technical support available?
The Axis P3945-R M12 2.8mm is part of the Security Wholesalers range, available to trade customers alongside the broader Axis Communications product portfolio. Axis provides ongoing firmware updates and long-term platform support for this model, which is an important consideration when specifying cameras for fleet deployments expected to remain in service for extended periods.
Additional Information
AXIS 03376-001 Datasheet
