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BeiDou GPS satellite
It receives BeiDou and GPS satellite signals to obtain standard time currently, there are over 50 BeiDou and GPS satellites in total, providing wide coverage it only needs to receive signals for a few minutes each day for time synchronization suitable for outdoor environments, mountainous areas, remote regions, at sea, and on islands.
CDMA network time synchronization
It receives standard time from China Telecoms CDMA base stations time synchronization is possible wherever China Telecoms Tianyi mobile phones can receive a signal China Telecom currently has hundreds of thousands of base stations, providing excellent signal coverage it is suitable for densely populated urban and town areas, as well as indoor and basement locations.
Network time synchronization
It obtains standard time from an internet or local area network time server it automatically sends a request to the server every time it powers on it connects directly via the network port to a router on the local area network.
Beidou/GPS Satellites: Receives signals from over 50 satellites to obtain standard time; only needs a few minutes of daily signal reception for calibration. Suitable for outdoor, mountainous, remote areas, seas, islands, etc.
CDMA Network Calibration: Acquires standard time through China Telecom's CDMA base stations (hundreds of thousands in total). Functional in all areas covered by China Telecom Tianyi signals, ideal for densely populated urban areas, indoors, basements, etc.
Network Time Service: Retrieves standard time from Internet/LAN time servers; automatically sends requests to servers upon power-on. Directly connects to LAN routers via network ports.
Automatically eliminates accumulated timekeeping errors via satellite signals; no manual adjustment required.
Dual-calendar display (Gregorian & lunar) with auto-adjustment for leap years and month lengths; shows hours, minutes, seconds.
Built-in lithium battery: Maintains internal clock operation for 5 years during power outages.
Precise timekeeping: Cumulative error < 3 seconds per month even without satellite signals.
Temperature measurement: Displays range -9~50℃.
Stable & reliable: Equipped with EMI power filter, unaffected by power fluctuations.
Dual-calendar display (Gregorian & lunar) with automatic adjustment for leap years and month lengths; displays hours, minutes, and seconds.
Built-in lithium battery: Maintains internal clock operation for 5 years during power outages.
Precise timekeeping: Cumulative error < 3 seconds per month even without satellite signals.
Temperature measurement: Displays a range of -9~50℃.
Stable and reliable: Equipped with an EMI power filter, unaffected by power fluctuations.
| Main Category | Subcategory | Description |
|---|---|---|
| Performance Features | Beidou-2 Signal Reception | B1: BD2 B1 (1561.098MHz) |
| GPS Signal Reception | GPS L1 (1575.061MHz) | |
| Telecom CDMA Base Station Signal | 800MHz CDMA | |
| Ethernet | 10M/100M/10G Ethernet, IEEE 802.3 | |
| Electrical Characteristics | Power Supply | 110~220V, 50Hz; suitable for 110V AC regions (e.g., South Korea, Taiwan) |
| Power Consumption | 1.5W~5W (varies by model) | |
| Reliability | MTBF > 10000h | |
| Electromagnetic Compatibility | Complies with GB-9254-1998 (Radio Disturbance Limits, Class A) | |
| Mechanical Characteristics | Model Series | DH Series, DP6812, DP6822 |
| Exterior | - (Partial models): Electrocoated aluminum frame / high-strength crystal glass panel- DP1625, DP2245, DP3860: Integrally molded housing / organic glass panel | |
| Installation Method | Wall-mounted / Suspended / Rack-mounted | |
| Dimensions & Weight | 600105050mm | |
| Environmental Characteristics | Operating Temperature | -20°C ~ +70°C |
| Storage Temperature | -40°C ~ +70°C | |
| Humidity | 5% ~ 95% RH |
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