1. Product Overview
The ENS Security NVR302A-16/16P-4KS2/L is a 16-channel Network Video Recorder designed for high-definition surveillance systems. It features 16 Power over Ethernet (PoE) ports, simplifying camera installation by providing both power and data through a single cable. This NVR supports 4K resolution recording and playback, advanced H.265+/H.264+ compression for efficient storage, and AI-powered features for enhanced detection. It offers flexible storage options with support for up to two SATA HDDs and provides remote access capabilities via mobile devices and web browsers.
Key features include:
- 16-Channel 4K NVR: Supports up to 16 IP cameras with 4K resolution recording.
- 16 Built-in PoE Ports: Simplifies installation with Power over Ethernet for each camera.
- Smart H.265+/H.264+ Compression: Reduces storage and bandwidth usage while maintaining image quality.
- Up to 12MP Recording & Playback: Supports ultra-high-definition recording and smooth real-time playback.
- AI-Powered Features: Includes Perimeter Protection, Smart Motion Detection Plus (SMD Plus), and AI search capabilities.
- Multiple Storage Options: Supports up to 2 SATA HDDs (each up to 10TB) with RAID 0/1 support.
- Dual Stream & Multi-Channel Output: HDMI and VGA outputs for simultaneous live viewing.
- Remote Access: Monitor live video, playback recordings, and receive alerts from mobile devices or web browsers.
- Flexible Recording Modes: Supports continuous, scheduled, motion detection, and event-triggered recording.

Figure 1: Front view of the ENS Security NVR302A-16/16P-4KS2/L 16-Channel 4K PoE Network Surveillance Recorder. The front panel features indicator lights for power and HDD status, along with control buttons for menu navigation, shift, record, and escape. A USB port is also visible on the front.
2. Setup Instructions
Follow these steps to set up your ENS Security NVR302A-16/16P-4KS2/L. For a visual guide, please refer to the embedded video below.
- Connect PoE Cameras: Connect your PoE cameras to the NVR's PoE ports using Ethernet cables. These ports provide both power and data to the cameras.
- Connect Mouse: Plug the USB mouse into one of the NVR's USB ports (front or rear).
- Connect to Network: Connect the NVR's LAN port to your router's LAN port using an Ethernet cable. This enables network access for remote viewing and updates.
- Connect to Display: Connect the NVR to a TV or monitor using an HDMI or VGA cable. Ensure the display is set to the correct input source.
- Connect Power: Plug the power cable into the NVR's power input and then into a power outlet.
- Power On: Flip the power switch on the back of the NVR to the 'On' position.
- Initial Setup: Follow the on-screen prompts on your connected display to complete the initial setup, including setting up passwords, network configurations, and camera detection.
Video 1: This video demonstrates the step-by-step process of connecting the ONWOTE 16CH PoE Camera System, which is compatible with this NVR. It covers connecting PoE cameras, mouse, network cable, display, and power, followed by powering on the unit.
3. Operating Instructions
3.1. User Interface Navigation
The NVR features a new UI interface designed for ease of use. Navigate the menus using the connected USB mouse. Right-click to access the main menu, and left-click to select options. The front panel buttons (M/O, M/S, SHIFT, REC, FN, ESC) can also be used for direct control and navigation.
3.2. Live View and Playback
- Live View: After initial setup, cameras connected to the PoE ports should automatically display in the live view. You can customize the display layout to view multiple cameras simultaneously.
- Playback: Access recorded footage through the main menu. Use the date and time filters to find specific events. The NVR supports real-time playback for detailed monitoring.
3.3. Recording Modes
The NVR offers various recording options:
- Continuous Recording: Records 24/7.
- Scheduled Recording: Set specific times for recording.
- Motion Detection Recording: Records only when motion is detected by the cameras.
- Event-Triggered Recording: Records based on specific events, such as alarm inputs.
Configure these modes in the NVR's recording settings menu.
3.4. Remote Access
The NVR supports P2P remote surveillance, allowing you to view live video and play back recordings on mobile devices. Download the official mobile application (check the NVR's packaging or manufacturer's website for app details) and follow the in-app instructions to connect your NVR. Web-based access is also available via Chrome, IE9 or above, and Firefox browsers.
3.5. AI-Powered Features
Leverage the NVR's AI capabilities for enhanced security:
- Perimeter Protection: Define virtual boundaries to detect intrusions.
- Smart Motion Detection Plus (SMD Plus): Differentiates between human and vehicle motion, reducing false alarms.
- AI Search: Quickly locate specific events or objects within recorded footage.
These features can be configured in the NVR's AI settings menu.
4. Maintenance
- Regular Cleaning: Keep the NVR unit clean and free from dust to ensure proper ventilation and prevent overheating. Use a soft, dry cloth.
- Firmware Updates: Periodically check the manufacturer's website for firmware updates. Keeping your NVR's firmware up-to-date ensures optimal performance, security, and access to new features.
- Storage Management: Monitor the hard drive status and ensure sufficient storage space. Configure recording overwrite settings to manage older footage automatically.
- Password Security: Regularly change your NVR's password and use strong, unique credentials to protect against unauthorized access.
- Backup Configuration: Regularly back up your NVR's configuration settings to a USB drive or network location.
5. Troubleshooting
- No Video Display:
- Ensure the HDMI/VGA cable is securely connected to both the NVR and the monitor.
- Verify the monitor is powered on and set to the correct input source.
- Check if the NVR is powered on and its power indicator light is active.
- Cameras Not Showing:
- Confirm that cameras are properly connected to the NVR's PoE ports.
- Check Ethernet cables for damage.
- Ensure cameras are powered on (PoE should provide power).
- Verify camera compatibility (ONVIF and RTSP protocols are supported).
- Perform a camera search or add cameras manually through the NVR's interface.
- No Remote Access:
- Ensure the NVR is connected to your router and has a valid IP address.
- Check your network connection and router settings.
- Verify that the P2P service is enabled on the NVR.
- Confirm correct configuration in the mobile app or web browser.
- Recording Issues:
- Check if a hard drive is installed and properly initialized.
- Verify recording schedules and motion detection settings.
- Ensure there is sufficient free space on the hard drive.
6. Specifications
| Feature | Detail |
|---|---|
| Model Number | NVR302A-16/16P-4KS2/L |
| Brand | ENS Security |
| Number of Channels | 16 |
| PoE Ports | 16 (Built-in) |
| Max Recording Resolution | 4K (up to 12MP) |
| Video Compression | Smart H.265, Smart H.264 |
| Audio Compression | G.711A/G.711U/PCM/G726 |
| Network Bandwidth | 160 Mbps (access), 160 Mbps (storage), 64 Mbps (forwarding) |
| Video Output | HDMI (up to 4K), VGA (simultaneous) |
| Storage | 2 SATA ports, up to 10TB each (RAID 0/1 support) |
| Compatible Devices | Cameras (ONVIF, RTSP protocol) |
| Connectivity Technology | Ethernet |
| Dimensions | 18 x 18 x 10 inches (Package) |
| Item Weight | 10 pounds |
7. Warranty Information
Specific warranty details for the ENS Security NVR302A-16/16P-4KS2/L are typically provided with the product packaging or available on the manufacturer's official website. Please refer to these sources for the most accurate and up-to-date warranty terms and conditions.
8. Customer Support
For technical assistance, troubleshooting, or any inquiries regarding your ENS Security NVR, please contact customer support:
- Email: support@onwote.com
- Refer to the official ENS Security website for additional resources and contact options.





