Master Clock, NTP Server with Optional Built-in Rubidium Clock/OCXO

Features

• Stratum 1 operation via GPS/BeiDou satellites, can also be set as a stratum 2 time server to synchronize with host time server

• One/two/four standard GbE ports, all with patented NTP hardware timestamping. The LAN port ETH0 is the management port and cascade port. All ports support SSH/ SNMP/HTTP/HTTPS/NTP.

• Web-based management with high security cipher suite, supports HTTP/HTTPS. Supports CLI configuration. Keyboard can be used for easy and fast configuration.

• Exceptional time accuracy to UTC

• Extended environmental specifications

• NTP Server Performance: 20000 NTP requests per second while maintaining accuracy associated with reference time source

• Uses RFC1119/1305 NTP (Network Time Protocol)

• Supports RFC1769/2030 SNTP (Simple Network Time Protocol)

• Supports SNMP, with a serial port for to log in; supports syslog, with iptables security protection.

• Supports tracelog. With a second development interface.

• IPv6/IPv4 on all ports.Supports multiple ports BONDING and multiple routes.

• GLONASS/Galileo option

• MTBF: 90000 Hours

Optional

Built-in Clock

OCXO

Rubidium Clock

Output

TOD

1PPS

10MHz

IRIG-B

PTP

GPS Antenna & Cable

The listed price on AliExpress 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 or optional built-in clock/ output, please contact us before you place order.

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 SNTPv2/v3/ v4

SNMP v1/v2

SSH

HTTP/HTTPS

SFTP

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: >20000 times per second

Oscillator Aging ( yearly)

OCXO: 1E-7

Rb: 1E-9

FAQ

Question:

Hi from Italy, I am interest to buy this item, but I don’t know if you can send it to Italy.

Answer:

Yes, we can send it to Italy, we have CE, FCC, RoHS, ISO. By Oct 24, 2024, we have sold our NTP clocks and NTP servers to 91 countries or regions over the five continents in the world.

Question:

How much is the time precision, when the client synchronizes its clock with your NTP server?

Answer:

Timing performance

Server time precision: 1ms

Precision of client time: 10ms

Question:

What is the yearly accuracy of your product’s Rubidium Oscillator?

Answer:

Oscillator Aging ( yearly)

OCXO: 1E-7

Rb: 1E-9

Question:

Do you have any NTP Client Software?

Answer:

Yes, we have. You can download the software at our website://www.ntpclock.com/manuals

Question:

Please explain the Navigation Satellite Systems procedure of your product? (Is it checking just one reference at a time or

checking all of them simultaneously?)

Answer:

Our server supports GPS, Beidou, GLONASS, Galileo, but among the 4 satellites, one NTP server can only use two. One server can check just one reference at a time or check two simultaneously.

Question:

Is it possible to connect each LAN port of your product to a different LAN?

Answer:

Yes. For the server with more than one LAN ports, each LAN ports has it own IP.

Question:

Are you a trading company or a manufacturer?

Answer:

We are a manufacturer in Shanghai, China. We have our own R&D team who developed the NTP Server. We have been providing NTP servers in the market since the year 2003. In China, many banks and public security bureaus are using our NTP servers.