Military Command System Time Synchronization Solution
With people's increasing reliance on computer networks, almost all businesses are implemented through computers. However, the time accuracy of the computer itself is not high, and the travel time is not accurate; the services that often cause dependence and time cannot be completed normally. For example: military command systems, dispatch systems; time stamp servers in the financial industry; telecommunications network management systems, billing systems, distributed database servers, railway dispatch systems, etc. all require LAN time synchronization, and strongly demand a standard network time source. Serve the entire system.
The NTP network time server DNTS-7 developed by China Shinco Co., Ltd. is a time synchronization server based on the NTP protocol that can work independently. At present, the NTP network time server of China Shinco has served a large number of Air Force departments; Ministry, No. 1 satellite ground station, satellite launch base in Shanxi, and so on.
The NTP protocol stands for Network Time Procotol. Its purpose is to deliver a unified, standard time on the Internet. The specific implementation plan is to specify a number of clock source websites on the network to provide time service for users, and these websites should be able to compare with each other to improve accuracy. As the name implies, the new DNTS-7 type NTP network time server can also be Call: NTP time server.
The DNTS-7 series NTP network time server developed and produced by Beijing Zhongxinhuang Technology Co., Ltd. is a high-tech intelligent time server that can work independently based on the NTP/SNTP protocol. The NTP network time server obtains the standard clock signal from the GPS satellites. The information is transmitted in the network. Devices in the network that require time signals such as computers and controllers can be synchronized with standard time sources. Standard clock information is transmitted over the TCP/IP network. The DNTS series also supports a number of popular time publishing protocols, such as time/UDP, and support for the new founder-defined time-of-broadcast data packets for configurable UDP ports. The NTP and time/UDP port numbers are fixed at 123 and 37 as specified by RFC-123 and RFC-37, respectively.
DNTS series has three models to choose from, DNTS-71 has a 10/100M adaptive Ethernet port, DNTS-72 has 2 10/100M adaptive Ethernet port, DNTS-74 has 4 The 10/100M adaptive Ethernet interface isolates the network ports from each other. When a network interface fails, it does not affect the normal operation of other network interfaces and completely guarantees data security. Each Ethernet port must have a separate IP address. The IP address can be set to the same network segment or different network segments, and two network ports can be set to use the same IP address as a backup.
For client software, Windows clients use our dedicated client software (where win2k/NT can be installed without client software). Linux systems use NTP's standard programs such as ntpq or xntpd to obtain time from DNTS and synchronize automatically. . The DNTS network time source works in the Server state. NTP1.0, NTP2.0, NTP3.0, NTP4.0 support MD5 encryption verification mode at the same time. If you do not use the encryption verification mode, DNTS can simultaneously service the time request of thousands of computers and complete the efficiency efficiently. NTP timing function.
Product Features:
---- Guarantee the time synchronization of all computers in Intranet/Internet
----Support protocol ARP, UDP, Telnet, ICMP, SNMP, DHCP, TFTP, NTP/SNTP, Time/UDP, NTP V4, V3, V2, V1; NTP SERVER or NTP Client can be selected
---- 1~4 independent Ethernet ports rate 10/100M, protocol compatibility: Ethernet 2.0/IEE 802.3
----1 RS232/RS485 output standard time and position signal (NMEA 0183)
----1 RS232 input, can be used as external time source
----1PPS output
----Local dry node alarm function
---- 12-channel GPS receiver, finder time is less than 10 seconds
---- Can be used for WIN95/98/ME/NT/2000, Unix, Linux
---- Provide MD5 encryption verification to prevent illegal acquisition time
----Provide UDP broadcast protocol, can be connected to LED display
---- Perfect SNMP network management function
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