1. Introduction
This manual provides detailed instructions for the installation, operation, and maintenance of your Runpu 4K NDI PTZ Camera, model RP-HD66K-20N. This camera is designed for professional video conferencing and live streaming applications, offering 4K resolution, 20X optical zoom, and AI auto-tracking capabilities.
2. Safety Information
- Ensure the camera is installed on a stable surface or mounted securely to prevent falls.
- Use only the provided power adapter.
- Avoid exposing the camera to moisture, extreme temperatures, or direct sunlight.
- Do not attempt to disassemble or repair the camera yourself. Refer all servicing to qualified personnel.
- Keep the camera away from strong electromagnetic fields.
3. Package Contents
Verify that all items are present in the package:
- Runpu 4K NDI PTZ Camera (RP-HD66K-20N)
- Remote Control
- User Manual
- Power Adapter
- USB Cable
- Power Cable
- Wall Mount Bracket

Image: Contents of the Runpu 4K NDI PTZ Camera package, including the camera, remote control, user manual, power adapter, various cables, and a wall mount bracket.
4. Product Overview
4.1 Key Features
- 4K Resolution: Delivers 4K 30fps and 1080P 60fps video with a Sony 1/1.8" CMOS Sensor (8.42MP Effective Pixels).
- 20X Optical Zoom: Provides clear magnification for distant subjects.
- AI Auto Tracking: Built-in AI algorithm for automatic speaker detection and tracking (Real-time Tracking and Zone Tracking).
- NDI|HX Protocol: Supports low-latency, IP-based production workflows for stable, high-quality video streaming and PTZ control.
- Multiple Video Output Interfaces: Simultaneous output via HDMI, SDI, USB3.0, and LAN (PoE supported).
- Low Light Compensation: Automatically adjusts brightness for clear video in dark environments.
- Tally Light: Green and red lights indicate preview and program status for broadcast applications.

Image: Visual representation of the camera's key features, including 20X optical zoom, Sony CMOS sensor, multi-interface options, NDI|HX support, 4K30FPS Ultra HD, and AI Humanoid Tracking.

Image: Close-up view highlighting the 1/2.8" SONY CMOS Sensor with 2.07 mega pixels, responsible for high-quality image capture.
4.2 Camera Interfaces
The camera offers a variety of interfaces for connectivity and control:
- DC 12V: Power input.
- LAN (PoE): Ethernet port for network connectivity, NDI streaming, and Power over Ethernet.
- USB2.0 / USB3.0: For video output and control.
- 3G-SDI: High-definition video output, supporting up to 100 meters transmission at 1080p@60fps.
- HDMI: High-definition video output.
- TYPE-C: Additional interface, potentially for reset or specific functions.
- RS232 IN/OUT, RS485: Serial ports for camera control.
- LINE IN / LINE OUT: Audio input and output.
- IR: Infrared receiver for remote control.

Image: Detailed view of the camera's rear panel, showing all available input and output interfaces including DC 12V, LAN, USB2.0, 3G-SDI, HDMI, TYPE-C, RS232, RS485, LINE IN/OUT, and IR.

Image: Illustration explaining Power over Ethernet (PoE+ 802.3AF/AT 48V), demonstrating how a single Cat5/6 network cable can provide both power and control to the PTZ camera.
5. Setup
5.1 Physical Installation
The camera can be placed on a flat surface or mounted using the provided bracket. Ensure the camera is stable and has a clear line of sight to the desired area.
5.2 Connections
- Power Connection: Connect the power adapter to the DC 12V port and plug it into a power outlet. Alternatively, if using PoE, connect an Ethernet cable from a PoE-enabled switch to the LAN port.
- Video Output:
- For HDMI output, connect an HDMI cable from the camera's HDMI port to a display or capture device.
- For SDI output, connect an SDI cable from the camera's 3G-SDI port to an SDI receiver or switcher.
- For USB output, connect a USB3.0 cable from the camera's USB3.0 port to a computer.
- For IP/NDI streaming, connect an Ethernet cable to the LAN port and configure network settings.
- Audio Connection: If external audio is required, connect an audio source to the LINE IN port.
- Control Connection: Connect control devices (e.g., RS232, RS485, network joystick) to the respective ports as needed.
Video: This video demonstrates the physical connections for the Runpu 4K NDI PTZ Camera, including power, HDMI, and USB connections, and shows the camera's pan, tilt, and zoom capabilities when connected to a laptop. It highlights the various interfaces and the camera's movement range.

Image: A comprehensive diagram illustrating various connection possibilities for the Runpu 4K NDI PTZ Camera in a live streaming environment, including connections to a PoE switch, router, video switcher, computer, and various streaming platforms.
6. Operating Instructions
6.1 Basic Camera Control (Pan, Tilt, Zoom)
The camera supports pan, tilt, and zoom functions. These can be controlled via the remote, a network joystick, or web interface.
- Pan: 355° rotation (Max Speed 80°/S).
- Tilt: -30° to +90° movement (Max Speed 60°/S).
- Zoom: 20X optical zoom for detailed close-ups.
- Presets: Up to 255 presets can be stored (10 via remote control) with 0.1° preset accuracy.

Image: A series of three images demonstrating the 20X optical zoom capability, showing a scene at 3X, 10X, and 20X magnification.

Image: This image illustrates various control methods for the camera, including web control, remote control, and PTZ joystick, alongside a diagram showing the camera's horizontal rotation range (±170°), vertical rotation range (-30° to +90°), and tilt/pan speed ranges.
6.2 AI Auto Tracking
The camera features AI human tracking, which automatically detects and locks onto a speaker. It supports both Real-time Tracking and Zone Tracking modes. Refer to the camera's web interface or specific software for detailed configuration of tracking modes.

Image: An illustration of the AI Human Auto-Tracking feature, showing the camera automatically framing a speaker in a church setting.
6.3 NDI Protocol
The camera supports the official NDI|HX protocol, enabling low-latency, high-quality video streaming and PTZ control over an IP network. This allows integration with various live streaming software such as vMix, OBS, Propresenter, StreamYards, Streamlabs, Wirecast, and Zoom.

Image: An explanation of the NDI|HX2 protocol, detailing its benefits for low-latency transmission of audio and video over an IP connection, simplifying live streaming for larger audiences.
6.4 Low Light Compensation
The camera automatically adjusts image brightness to ensure clear video output even in dimly lit environments, such as meeting rooms or churches.

Image: A visual comparison demonstrating the effect of Low Light Compensation, showing a church scene before and after the feature automatically adjusts brightness for improved clarity.
7. Maintenance
- Cleaning: Use a soft, dry cloth to clean the camera body. For the lens, use a specialized lens cleaning cloth and solution. Avoid harsh chemicals.
- Storage: When not in use for extended periods, store the camera in a dry, dust-free environment.
- Firmware Updates: Periodically check the manufacturer's website for firmware updates to ensure optimal performance and access to new features.
8. Troubleshooting
If you encounter issues, refer to the following common troubleshooting steps:
- No Power: Check power connections, ensure the power adapter is working, or verify PoE connection if applicable.
- No Video Output: Verify all video cables (HDMI, SDI, USB, Ethernet) are securely connected. Check display input settings. Ensure the camera is powered on.
- Camera Not Responding to Control: Check remote control batteries, ensure line of sight for IR, verify network connection for IP control, and check serial cable connections for RS232/RS485.
- Poor Image Quality: Ensure the lens is clean. Check lighting conditions. Adjust camera settings (e.g., exposure, white balance) via the control interface.
- AI Tracking Issues: Ensure the subject is within the camera's field of view and not obscured. Check tracking settings in the camera's interface.
For further assistance, contact customer support.
9. Specifications
| Feature | Specification |
|---|---|
| Brand | Runpu |
| Model Number | RP-HD66K-20N |
| Resolution | 4K (30fps), 1080p (60fps) |
| Optical Zoom | 20X |
| Sensor | Sony 1/1.8" CMOS (8.42MP Effective Pixels) |
| Special Features | AI Auto Tracking, NDI|HX2 Protocol, Low Light Compensation, Tally Light |
| Video Output Interfaces | HDMI, 3G-SDI, USB3.0, LAN (PoE) |
| Control Interfaces | RS232, RS485, LAN, IR Remote |
| Pan Range | 355° |
| Tilt Range | -30° to +90° |
| Item Weight | 7.19 pounds |
| Package Dimensions | 11.15 x 10 x 9.3 inches |
| Color | Black |
10. Warranty and Support
The Runpu 4K NDI PTZ Camera comes with a 2-year warranty and lifetime technical support. For any questions or assistance, please contact Runpu customer service. They will provide satisfactory solutions.
You can visit the Runpu Store for more information and support resources.




