Сетевой сервер времени главные часы с дополнительными часами
- Категория: Other Consumer Electronics >>>
- Поставщик: Shanghai,GlobalTime,Electronic,Co.,Ltd
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Описание и отзывы
Трекер стоимости
| Месяц | Минимальная цена | Макс. стоимость |
|---|---|---|
| Sep-16-2025 | 0.34 $* | 0.99 $* |
| Aug-16-2025 | 0.22 $* | 0.69 $* |
| Jul-16-2025 | 0.18 $* | 0.88 $* |
| Jun-16-2025 | 0.68 $* | 0.81 $* |
| May-16-2025 | 0.5 $* | 0.49 $* |
| Apr-16-2025 | 0.88 $* | 0.12 $* |
| Mar-16-2025 | 0.91 $* | 0.39 $* |
| Feb-16-2025 | 0.52 $* | 0.57 $* |
| Jan-16-2025 | 0.59 $* | 0.84 $* |
Характеристики
The main difference of the three models is at the quantity of LAN Ports.
Panel
Synchronization
NTP clocks and all network conncted devices which support NTP can sync with the NTP server.
GTT100
One LAN Port
GTT200
Two LAN Ports
GTT400
Four LAN Ports
Features
• Stratum 1 operation via GPS/ BeiDou/ GLONASS satellites
• One/ two/ four standard GbE ports, all with patented NTP hardware timestamping
• Security-hardened NTP Reflector with firewall protection
• Web-based management with high-security cipher suite
• Exceptional time accuracy to UTC
• Extended environmental specifications
• IPv4 on all ports
• Rubidium atomic clock or OCXO oscillator upgrades
• Single power supply or dual power supply option
• Can be set as a slave time server to synchronize with host time server
• One 10M/ 100M/ 1000M adaptive network interface
• NTP Reflector option: 20000 NTP client mode three requests per second
• TOD/1PPS/10MHz out
• MTBF: 90000 Hours
• One/ two/ four standard GbE ports, all with patented NTP hardware timestamping
• Security-hardened NTP Reflector with firewall protection
• Web-based management with high-security cipher suite
• Exceptional time accuracy to UTC
• Extended environmental specifications
• IPv4 on all ports
• Rubidium atomic clock or OCXO oscillator upgrades
• Single power supply or dual power supply option
• Can be set as a slave time server to synchronize with host time server
• One 10M/ 100M/ 1000M adaptive network interface
• NTP Reflector option: 20000 NTP client mode three requests per second
• TOD/1PPS/10MHz out
• MTBF: 90000 Hours
Technical Data
Applications
• Synchronizes hundreds of thousands of NTP clients
• Security-hardened for peace-of-mind time service operations
• Multiple GbE NTP ports for easy network configuration and adaptation
• Best-in-class time accuracy for improved log file timestamp precision and usability
• Very reliable and easy-to-use network time appliance for modern networks and business operations
Network Protocols
RFC 1119 1305 NTP v2/v3/v4
RFC 1769 2030 SNTP v2/v3/v4
TIME
DAYTIME
SNMP v1/v2
SSH
HTTP
FTP
• Security-hardened for peace-of-mind time service operations
• Multiple GbE NTP ports for easy network configuration and adaptation
• Best-in-class time accuracy for improved log file timestamp precision and usability
• Very reliable and easy-to-use network time appliance for modern networks and business operations
Network Protocols
RFC 1119 1305 NTP v2/v3/v4
RFC 1769 2030 SNTP v2/v3/v4
TIME
DAYTIME
SNMP v1/v2
SSH
HTTP
FTP
Mechanical/Environmental
• Size: 44cm x 28.6cm x 4.4cm,1U rack mount, including BNCs
• Power: 10W, 110-230V AC
• Operating temperature: -10℃~65℃
• Storage temperature: -40℃~85℃
• Operational humidity: 0~90%, non-condensing, IEC 60068-2-78Cb, IEC 60068-2-30Db
• Power: 10W, 110-230V AC
• Operating temperature: -10℃~65℃
• Storage temperature: -40℃~85℃
• Operational humidity: 0~90%, non-condensing, IEC 60068-2-78Cb, IEC 60068-2-30Db
Specific Performance Index of the Server
GPS/BeiDou receiver
36 channel GPS receiver
Support GPS/ BeiDou frequency band
Cold-start time: 50 seconds
Hot-start time: 2 seconds
Sensitivity: -162dBm
1PPS accuracy: 15ns （1 sigma)
*depend on the location of the antenna
Timing performance
Server Time Level: Stratum 1
Server time precision: 1ms
Precision of client time: 10ms
Timing capacity: >1000 times per second
Oscillator Aging ( yearly)
OCXO: 1E-7
Rb: 1E-9
36 channel GPS receiver
Support GPS/ BeiDou frequency band
Cold-start time: 50 seconds
Hot-start time: 2 seconds
Sensitivity: -162dBm
1PPS accuracy: 15ns （1 sigma)
*depend on the location of the antenna
Timing performance
Server Time Level: Stratum 1
Server time precision: 1ms
Precision of client time: 10ms
Timing capacity: >1000 times per second
Oscillator Aging ( yearly)
OCXO: 1E-7
Rb: 1E-9
Optional Choices
Built-in Clock
Rubidium clock
OCXO
Output
TOD Output
1PPS Output
10MHZ
IRIG-B
GPS Antenna and Cable
The listed price on Alibaba has included the cost of GPS antenna and 40m cable. Unless you are professional on GPS antenna testing, you can buy GPS antenna in local place to save freight cost.
The default cable length is 40m, if you need other length, please contact with us when you place order.
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