Do you have a question about the Dahua DH-SD22204I-GC and is the answer not in the manual?
Covers requirements for qualified engineers and proper lifting appliance usage.
Details critical warnings for installation, power, and environmental hazards.
Provides important notes on transportation, device malfunction, modification, and handling.
Basic requirements for installation, including electrical safety codes and component checks.
Ensuring adequate space and structural support for the speed dome and bracket.
Guidance on keeping package material for future use or maintenance.
Verifying all included accessories against the packing list before installation.
Instructions for unpacking and identifying the speed dome components.
Using the position map for drilling and outlet placement on the ceiling.
Configuring speed dome parameters like address and HD/SD output via dial switches.
Details on installing the pedestal seal ring and the speed dome components.
Step-by-step guide for mounting the speed dome, including outlet modes and securing the enclosure.
Covers requirements for qualified engineers and proper lifting appliance usage.
Details critical warnings for installation, power, and environmental hazards.
Provides important notes on transportation, device malfunction, modification, and handling.
Basic requirements for installation, including electrical safety codes and component checks.
Ensuring adequate space and structural support for the speed dome and bracket.
Guidance on keeping package material for future use or maintenance.
Verifying all included accessories against the packing list before installation.
Instructions for unpacking and identifying the speed dome components.
Using the position map for drilling and outlet placement on the ceiling.
Configuring speed dome parameters like address and HD/SD output via dial switches.
Details on installing the pedestal seal ring and the speed dome components.
Step-by-step guide for mounting the speed dome, including outlet modes and securing the enclosure.
The Dahua 2-inch HDCVI Speed Dome is a surveillance camera designed for both indoor and outdoor environments, primarily utilizing a ceiling mount installation mode. This device is engineered to provide high-definition video output and can also be configured for standard definition, offering flexibility in integration with various surveillance systems. Its core function is to capture and transmit video footage, with features aimed at ease of installation, robust performance, and reliable operation.
The speed dome's primary function is video surveillance, capable of capturing footage in either HDCVI high definition or standard definition. This dual-mode capability allows it to adapt to different recording and display requirements. The device incorporates a dial switch setup for configuring essential parameters such as its address code, baud rate, parity, and the video output mode (HD/SD). This configurability is crucial for integrating the speed dome into existing surveillance networks and ensuring it responds correctly to control commands.
For HDCVI high definition video output, the speed dome simplifies setup by not requiring dial or RS485 settings, streamlining the installation process for HD environments. When operating in other modes, the dial switches allow for precise configuration of the device's address (from 1 to 127 using binary coding), enabling multiple speed domes to be managed within the same system. After any configuration changes via the dial switches, the device requires a reboot through its OSD system for the new settings to take effect.
The physical design includes a lens, enclosure, video output port, RS485 control cable, and a power input port, all essential for its operation and connectivity. The RS485 control cable facilitates communication with a control system, allowing for pan, tilt, and zoom functionalities, which are inherent to speed dome cameras. The installation position map provided in the manual aids in precise drilling for ceiling or wall mounting, ensuring optimal placement and coverage.
A significant functional aspect is its lightning protection and surge protection capabilities. The speed dome utilizes TVS (Transient Voltage Suppressor) lighting protection technology, designed to prevent damage from pulse signals up to 2000W, including sudden lightning strikes and power surges. This feature is particularly important for outdoor installations, where the device is more exposed to environmental electrical disturbances. To further enhance protection, specific guidelines are provided for cable layout, grounding, and the use of additional high-power thunder protection devices or lightning rods in areas prone to strong thunderstorms or near high-voltage sources. The system is designed to adopt equal-potential wiring and requires an earth device that meets anti-jamming standards and local electrical safety codes, with specific requirements for earth resistance and cable cross-sectional area.
The speed dome is designed with several features to facilitate its use and integration into a surveillance system. The installation process is detailed, starting with checking accessories and opening the device. The inclusion of an installation position map ensures accurate drilling for mounting, which is critical for proper camera alignment and coverage. The device is primarily designed for ceiling mount, but can also be installed on walls, offering some versatility in deployment.
The dial switch setup is a key usage feature, allowing installers to manually configure the device's operational parameters. This direct control over settings like address and video output mode ensures compatibility and correct behavior within a larger surveillance network. The ability to switch between HD and SD video output modes provides adaptability, allowing the camera to be used with different types of recording devices or monitors.
The physical installation steps are straightforward, involving the attachment of a pedestal seal ring, drilling holes, securing the pedestal with expansion bolts and self-tapping screws, and finally, fixing the dome enclosure. The process also includes adjusting the lens to the desired monitoring position, which is crucial for achieving the intended surveillance coverage. Once installed and connected, the camera's monitoring view can be checked via a back-end encoding device, confirming successful setup.
For power supply, the manual provides a detailed relationship sheet for 12V DC wire gauge and transmission distance. This information is vital for planning the power infrastructure, ensuring that the wire gauge is appropriate for the required transmission distance to maintain a voltage loss rate below 10%. This attention to power delivery helps ensure stable and reliable operation of the speed dome over varying distances.
Maintenance of the Dahua 2-inch HDCVI Speed Dome focuses on ensuring its longevity and optimal performance. The manual emphasizes the importance of qualified engineers for installation and maintenance, highlighting the need for specific CCTV system installation and maintenance certificates, as well as qualification for work at height. This ensures that all procedures are carried out safely and correctly, minimizing risks of damage or malfunction.
Regular cleaning of the device's shell is recommended using a soft cloth, with the option of using a cleaning liquid followed by drying. Crucially, the manual warns against using harsh chemicals like gasoline or dope thinner, as these can cause shell transfiguration or paint flaking. Similarly, prolonged contact with plastic or rubber materials is advised against to prevent paint flaking. These guidelines help preserve the aesthetic and protective coating of the device.
The manual also outlines precautions for handling and storage. It advises against violent vibration or crashing during transportation and application, and recommends storing the device in a cool, dry place with ventilation, away from direct sunlight, flammable, or explosive substances. These measures are designed to prevent physical damage and ensure the internal components remain in good working order.
In case of malfunction, the immediate action recommended is to shut down the device and disconnect the power cable if smoke, abnormal smell, or abnormal function is observed. Users are instructed to contact their local retailer immediately for assistance. The manual explicitly states that unauthorized modifications or attempted repairs are not covered and may lead to problems for which the manufacturer assumes no liability. This encourages users to seek professional help for any internal issues.
Furthermore, the device should be protected from foreign objects. Users are warned to ensure no metal, inflammable, or explosive substances enter the speed dome, as these can cause fire, short-circuit, or damage. In the event of water or liquid ingress, the device should be immediately shut down, disconnected from power, and the local retailer contacted. Special attention is also given to protecting the camera from sea water or rain erosion, particularly for outdoor installations, to prevent long-term damage.
The lightning protection measures, while primarily a functional feature, also contribute to maintenance by preventing damage from electrical surges, thereby reducing the need for repairs or replacements due to such events. Adhering to the specified grounding and cable layout guidelines is a form of preventative maintenance that ensures the device's resilience against environmental electrical threats.
| Image Sensor | 1/2.8" CMOS |
|---|---|
| ROM | 128MB |
| Scanning System | Progressive |
| Power Loss Memory | Yes |
| Streaming Method | Unicast / Multicast |
| Web Viewer | IE, Chrome, Firefox, Safari |
| Smart Phone | IOS, Android |
| Ingress Protection | IP66 |
| Resolution | 1920x1080 |
| Max. Aperture | F1.6 |
| Zoom | 4x Optical |
| Close Focus Distance | 0.1m~ 1m |
| Day/Night | Auto (ICR) / Color / B/W |
| Video Compression | H.265/H.264 |
| Pan/Tilt Range | Tilt: 0°~90° |
| PTZ Mode | 5 Pattern, 8 Tour, Auto Scan |
| Ethernet | RJ-45 (10/100Base-T) |
| Protocol | TCP/IP, HTTP, DHCP, DNS, RTP/RTSP, PPPoE, SMTP, NTP, UPnP, SNMP |
| Interoperability | ONVIF (Profile S, Profile G) |
| Edge Storage | Micro SD |
| Management Software | Smart PSS, DSS |
| Power Supply | DC 12V |
| Operating Conditions | -30°C~60°C |
| Network | 1 RJ45 10M/100M self-adaptive Ethernet |
| Effective Pixels | 1920(H) x 1080(V), 2MP |
| Bit Rate | 32Kbps~16Mbps |











