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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 suitable for densely populated urban and town areas, including 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.
Overview:
DP2245 is a time terminal that displays information using LED digital tubes. It can automatically correct the time by receiving external signals. With its exquisite craftsmanship and elegant design, it is suitable for various applications such as offices and control rooms.
Features:
(1) Automatic time synchronization to eliminate timing errors; supports multiple time synchronization methods including Beidou/GPS satellite, telecommunication base stations, and NTP Ethernet;
(2) Displays month, day, hour, minute, and second;
(3) Displays the lunar calendar, with automatic conversion between Gregorian and lunar calendars;
(4) Power-off memory function;
(5) Temperature measurement and display. Range (-9~50℃);
(6) Optional: Supports PoE power supply;
Features
| Category | Subcategory | Description |
|---|---|---|
| Interfaces | B: Beidou/GPS satellite signal | Can receive Beidou B1 frequency point, GPS L1 frequency point signals: (1) Operating frequency: 1555 MHz ~ 1580 MHz; (2) Gain: 28±2dB@3.3V; (3) Polarization: Right-hand circular polarization; (4) Noise figure: 1.5dB; (5) Output impedance: 50Ω; (6) Voltage standing wave ratio: ≤2 |
| C: China Telecom base station signal | 800M-1800M wireless signal | |
| E: Ethernet network data | 10M/100M/10G Ethernet, IEEE 802.3, NTP v1.v2.v3, SNTP, DHCP | |
| W: WiFi wireless signal | WiFi@2.4GHz, IEEE 802.11b/g/n, NTP, SNTP | |
| S: Self-owned LoRa wireless | 398MHz ~ 525MHz LoRa wireless signal | |
| R: Industrial bus | RS485 bus | |
| Electrical Characteristics | Power Supply | 110~220V 50Hz (suitable for regions using 110V AC such as South Korea, Taiwan) |
| Power Consumption | 1.5W~5W (determined by model) | |
| Reliability | MTBF>100000h | |
| Electromagnetic Compatibility | Complies with radio interference limit GB-9254-1998 standard Class A | |
| Mechanical Characteristics | Appearance | Integrally molded shell/high-strength glass panel |
| Installation Method | Wall-mounted | |
| Dimensions | 220×450×30mm | |
| Environmental Characteristics | Operating Temperature | -20°C ~ +70°C |
| Storage Temperature | -40°C ~ +70°C | |
| Humidity | 5%~95% RH |
Dimensions
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