Product Description
The T600-BDOCS NTP Time Server supports NTP and SNTP network synchronization protocols, making it a high-precision, high-capacity, and highly secure clock product. The device hardware features a redundant architecture design, with high-precision clocks directly sourced from the atomic clocks of various satellites in the GNSS system. It achieves accurate local clock synchronization even in the event of satellite signal loss by analyzing and taming the local clock source. The device software incorporates various anti-interference detection and recognition algorithms developed by Beidou Bangtai, which detect signal anomalies caused by interference and malicious attacks on GPS signals. With its unique embedded hardware design and efficient Linux operating system, it allows for flexible expansion of multiple clock signal outputs.
The T600-BDOCS NTP Time Server comprehensively supports the latest NTP time synchronization protocol, MD5 security encryption protocol, and certificate encryption protocol, achieving network time accuracy in the microsecond range. It also supports TOD, 10MHz, 1PPS, log recording, USB port for upgrade and download, and alarm function for dry contact points. Together with the self-developed network-wide time unified monitoring software by Beidou Bangtai, it easily realizes network time synchronization and effective monitoring. The T600-BDOCS NTP Time Server finds extensive applications in government, defense, finance, securities, insurance, mobile communications, cloud computing, e-commerce, energy and power, oil and petrochemicals, industrial automation, intelligent transportation, security, smart cities, and the Internet of Things (IoT) domains.
Key Features:
- Ultra-high-bandwidth NTP server
- GPS/Beidou dual reference source primary clock server
- High-performance industrial-grade motherboard, embedded Linux operating system
- Six independent 10/100/1000Mbps network interfaces
- Can be connected to another NTP server to form a 2-tier clock
- Built-in high-performance temperature-compensated crystal oscillator, with a 24-hour deviation of 10 microseconds
- Supports SSH, SSL, SCP, SNMP, CustomMIB, HTTPS, Telnet
- Compatible with IPv6 and IPv4 protocols
- Achieves nanosecond-level accuracy relative to UTC time
- Supports SysPlex time information output required by IBM hosts
- Supports single-satellite time synchronization in fixed position mode
- VFD high-definition vacuum fluorescent display suitable for extreme low temperatures
- Reliability with MTBF greater than 100,000 hours
- Supports 10,000 log records
- Supports remote wake-up and scheduled switch
- Supports MD5 encryption protocol and certificate encryption protocol
- Secure and efficient web user interface
- Supports dry contact point alarm function
Front Panel:
- VFD high-brightness LCD screen displaying satellite acquisition status, time, number of satellites, latitude and longitude, altitude, IP of each network card, and system status
- Tricolor indicators indicating GNSS lock status, NTP service status, local clock synchronization status, and device alarms
Front Panel Ports:
- RJ-45 network interfaces: 6 ports, 10/100/1000M auto-adaptive Ethernet interfaces
- Console: RJ-45, 1 port, RS232 level, control interface
- USB: 2 ports, for backup, restore, and upgrade functions
Back Panel:
- Antenna input: BNC, 1 port, GNSS signal input, output 5V DC
- TOD: DB-9 female, 1 port, RS232 level, time and location information
- VGA: DB-9 female, 1 port, display output
- ALARM dry contact point alarm: 3 pairs, power, GPS, port capacity alarms
- 1PPS: B
NC, 1 port, TTL
- 10MHz: BNC, 1 port, sine wave, amplitude 12±1dBm, 50Ω
Standard Configuration:
- Main unit: 1 unit
- 50-meter cable high-sensitivity timing antenna: 1 unit
- Installation bracket: 1 set
- 1.5-meter power cord: 1 piece
- 1.5-meter control cable: 1 piece
- 3-meter network cable: 1 piece
- Chinese user manual: 1 copy
- CD: 1 disc (including manuals, NTP client time synchronization software, SNTP timing software, BDMonitor network time synchronization system unified monitoring software, reference summaries for Windows/Unix/Linux/AIX/Solaris systems)
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System Architecture
The T600-BDOCS NTP Network Time Server innovatively integrates seamless switching technology for reference sources, high-precision Time Interval Counter (TIC) technology, and adaptive precision frequency measurement and control technology. It adopts a modular design and consists of a Beidou receiver, GPS receiver, high-performance industrial-grade motherboard, human-machine interface and monitoring management unit, local clock disciplining unit, output interface module, and power module.
The core of the T600-BDOCS NTP Network Time Server is composed of a 64-bit high-performance CPU, high-speed FPGA, and high-stability oscillator (rubidium atomic clock or OCXO). It utilizes Linux for real-time multitasking parallel processing and scheduling. The system can simultaneously receive second synchronization and time information from Beidou and GPS, as well as network time messages that comply with the NTP/SNTP protocols. It automatically selects external time reference signals as synchronization sources based on priority and controls them to a locked state (LOCKED). It includes input transmission delay compensation algorithms and uses Kalman digital filtering technology to filter out jitter in external time reference signals. It then controls and disciplines the rubidium atomic clock or OCXO, obtaining a 1PPS signal by frequency division from the internal oscillator. This ensures that the output 1PPS signal is synchronized with the long-term stable value of the external time reference's 1PPS signal, overcoming the impact of sudden changes in the external time reference's second pulse signal. Thus, the output time signal remains synchronized with the external time reference signal and is more stable. When the external time reference signal is lost, it enters a holdover state (HOLD-OVER). Once the external time reference signal is restored, it automatically exits the holdover state and tracks back to the locked state, ensuring uninterrupted output of time information synchronized with UTC.
Key Features:
- Synchronizes the clocks of tens of thousands of client devices, servers, and workstations
- Enhances network system reliability and security
- Six NTP ports for easy network configuration and upgrades
- Improves accuracy of network log files and speeds up network fault diagnosis and localization
- Supports multiple time references for reliable and secure time acquisition
- 1U rack-mountable structure for easy installation and maintenance
- Intuitive web management interface for user operation and control
- Supports bonding technology for fast single-machine backup and load balancing
- Supports heartbeat detection for IP backup between two devices
- Supports the latest SNMP protocol for efficient network management
Network Protocols:
- NTP v1.v2.v3&v4 (RFC1119&1305)
- SNTP (RFC2030)
- MD5 Authentication (RFC1321)
- Telnet (RFC854)
- NTP Unicast, Broadcast, Multicast, Autokey
- TIME (RFC868)
- FTP (RFC959)
- DAYTIME (RFC867)
- DHCP (RFC2131)
- RSA asymmetric encryption
- HTTP/SSL/HTTPS (RFC2616)
- SNMP v1, v2
- SSH/SCP (Internet Draft)
- MIB II (RFC1213)
- IPv4, IPv6, IPv4/IPv6 Hybrid
Server Performance:
- GPS/Beidou dual-reference primary clock server with a synchronization accuracy of 1µs
- Synchronization accuracy for user terminal clocks: 100µs (typical value for LAN)
- User capacity: Over 2 million devices
- NTP request rate: 23,000 times/second
- Can connect to another NTP server to form a 2-tier clock
- Supports 10,000 log records
Time Acquisition Beidou Receiver:
- Frequency: GPS L1; BD2
B1
- System mode (configurable): Single Beidou / Single GPS / Mixed positioning mode
- Channels: 32 channels
- Time to first fix: Cold start: <35s; Hot start: <1s; Reacquisition: <1s
- Time synchronization accuracy better than <30ns (RMS)
- Positioning accuracy: 3m (RMS)
Physical and Environmental Parameters:
- Dimensions: 1U chassis 440×44.5×364mm
- Power supply: 220V±20% 47Hz ~ 63Hz
- Operating temperature: -10℃ ~ +55℃ (host); -40℃ ~ +75℃ (antenna)
- Storage temperature: -45℃ ~ +85℃
- Humidity: 95% non-condensing
- Power consumption: 50W
- Weight: 3kg
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Documentation
T600-BDOCS【PDF】data
PDF
Being among experts, no longer confused.
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PNT stands for Positioning, Navigation, and Timing
![We are the Reference]()
Bd Star is a national high-tech enterprise specializing in Beidou GPS timing and navigation industry. The company is dedicated to the research and development, design, production, and sales of system solutions such as standard time timing
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Experienced
![Experience]()
BdSTAR TIME seamless switching technology for redundant reference sources includes several technical components such as high-precision phase-shifting technology, reference clock, FPGA, integrated analog stretching, asynchronous serial communication, parameter storage, and master clock output.
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Requirement customization
![Built-to-Order]()
The core technology team of the company has many years of research and development experience in the field of timing and frequency. They possess multiple key core technologies in high-precision timing, PNT combination, frequency measurement, control, optical fiber time-frequency transfer, recovery, and maintenance.
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Philosophy
![Approved]()
"Our team of experts is committed to providing you with the best industry solutions, reducing project costs, and saving your valuable time. Additionally, our ability to design and use various timing and navigation components enables us to develop customized products for various special applications."
