The NTP network time server DNTS developed by Beijing Zhongxinchuang Science and Technology Co., Ltd. is a high-tech, intelligent and independent network time server based on NTP/SNTP protocol. DNTS obtains standard clock signal information from GPS or Beidou geosynchronous satellite and transmits these information in the network. In the network, time signal devices such as computers and controllers are needed. Such devices can be synchronized with standard clock signals. At the same time, when using GPS and Beidou receivers, priority can be defined, default setting is Beidou priority and GPS backup; DNTS-7 uses standard clock information to transmit through TCP/IP network, DNTS supports a variety of popular time release protocols, such as NTP, time/UDP, and also supports time broadcast packets defined by the newly created technology of setting UDP ports. The port numbers of NTP and time/UDP are fixed at 123 and 37 specified by RFC-123 and RFC-37 respectively. DNTS also supports the broadcasting mode of SNTP protocol.

The installation and use of network time server is very simple. It only needs to connect the satellite receiving antenna and the NTP network time server network port is connected to the network switch. The time of the whole network is synchronized.

Product characteristics:

High Precision, Large Capacity and High Quality

Embedded system, no hard disk and fan design, shock-proof design, low calorific value, stable and reliable system

Industrial embedded industrial control core board, dual CPU working at the same time, 32-bit CPU for dual-core processors, greatly improved performance

Equipment information can display state information such as GPD/BD, network, equipment system, etc.

GPS/BD Clock Reference Mode, First-level Network Time Server

Supporting 1-8 optional physically isolated 10/100 MBase-T Ethernet ports

High reliability, MTBF time 90,000 hours

Support for MD5 Secure Encryption Protocol

Supporting Zui's New 50 Logging Functions

Supporting Web, net, SNMP network management functions

Support trunk node alarm

Product function:

1-8 NTP network ports are optional and easy to configure and apply.

Can synchronize tens of thousands of client, server, workstation and other equipment clocks

Visual Web interface and DNTS-Manager management software can easily realize remote network login, management, configuration and maintenance.

II. Performance indicators

Network Protocol:

NTPv1.v2.v3 & V4 (RFC1119 & 1305) SNTP (RFC2030) MD5 Authentication (RFC1321) net (RFC854) UDPNTPUnicast, Broadcast, Multicast, AutokeyTIME (RFC868) FTP (RFC959) DAYTIME (RFC867) DHCP (RFC2131)

Asymmetric Encryption of HTTP, SNMPv1, v2, MIBII (RFC1213) RSA

IPV4

NTP server performance:

GPS/BD clock reference mode, first-level network time server, internal synchronization accuracy of 1

User terminal synchronous timing accuracy: 0.5-2ms (typical value of LAN)

User capacity: can support tens of thousands of clients

NTP requests: 2000 times per second (single network port)

Can be synchronized with other servers as slave servers

Supporting zui's new 50 logging functions (single network ports)

GPS/BD Receiver:

Fifty Channel Time Service GPS/BD Receiver, Single GPS, GPS/BD Dual-mode Receiver Optional

UTC Synchronization Accuracy 30ns (RMS)

Receive L1, C/A code signal - 1575.42MHz

Tracking and locking sensitivity up to - 160dBm

Front panel:

VFD High Brightness LCD Screen

Display GPS/BD satellite receiving status, time, number of GPS/BD satellites, IP of each network port, system working status, etc.

Indicators: SAT, E1-E8

Indicates whether the NTP service is started and the network connection is normal

Rear panel:

GPS/BD antenna input: BNC, 1 channel, L1, 1575.42 MHz, output 3.3 VDC

Network Port: RJ-45, 1-8 (selected according to model), 10/100M Adaptive Ethernet Interface

TOD output: DB-9female, 2-way, RS232/RS485 interface, NMEA0183 protocol output

External Time Source Input: 1 Route, RS232 Interface

1PPS output: BNC, 1 channel, TTL level, precision 20ns (RMS)

Physical and environmental parameters:

Dimension: 1U chassis 435 *44 *230mm

Weight: 3Kg

Power supply: AC220V + 20% 47Hz ~ 63Hz, supporting dual power supply options

Operating temperature: - 40 ~80 (?) - 40 (?) ~ + 85 (?)

Storage Temperature: - 45 ~85 ~

Humidity: 95% non-condensation * Power consumption: 15W

Performance of Time Service Management Software

Client Time Synchronization Software:

Provides windows system NTP protocol (NetTime) timing software, runs in a service mode, and provides operation status monitoring, control, configuration interface. Client-side support operating systems WIN98/NT/2000/XP/Vista/7, Unix, Linux, AIX, etc.

DNTS-Manager Network Time Synchronization System Monitoring Software:

Provide the time service monitoring software of NTP server and client, which can monitor the synchronization and time deviation of NTP server and time service client, and give alarm and log information. It can be alerted by s og, etc. It can support not less than 1000 NTP servers to monitor not less than 10000 clients at the same time. NTP server information monitoring, including running time, synchronization status, server network parameters and other information. NTP server time synchronization status monitoring, satellite time, server time and synchronization with reference sources. Includes a list of monitoring servers, client lists, comparison thresholds, S og, and send status settings.

Configuration list

1 sets of equipment

High Sensitivity Timing Antenna for 30m Cable

Installation bracket 1 set

1 meter power cord

One CD-ROM (Description, NTPC Client Time Synchronization Software, Windows/Unix/Linux/AIX/Solaris System Synchronization Reference Summary)

Other options:

Antenna feeder arrester, 50, 80, 100, 150 meters cable

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