GlobalTime NTP Products
User manual of GTT-030
2
Chapter 1
Basic information and packaging
GTT-030 network time server is the professional network equipment, providing highly-stable time source.
GTT-030 network time server receives GPS satellite signals and extracts the timing information to adjust
the server's local time. It distributes standard time via NTP protocol (Network Time Protocol). Upon the
PC or server which need time synchronization services, a client program will read the NTP protocol,
derive time information, and modify the time of related equipment. The network time server is widely
used in telecommunications, finance, taxation, public security and other special network as well as
common corporate network to unify the network time.
1.1
Key features
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Receive GPS satellite signals or the dual-satellite signal of GPS and GLONASS (optional)
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Adopt RFC1119/1305 NTP protocol (Network Time Protocol) to delivery time
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Support RFC1769/2030 SNTP protocol (Simple Network Time Protocol)
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Different client programs support Windows 98/2000/NT/XP, Linux, Unix, FreeBSD and other
operating systems, to adapt to different applications
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10/100M BaseT adaptive network interface
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Ways of maintenance: the local maintenance serial port; remote login; remote dial-up.
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2 lamps display the device working status
1.2
Packaging
Please check the shipping package which should contain the following items:
(1) GTT-030 network time server
(2) Power cable
(3) 1 meter cable
(4) rack set screws
(5) GPS satellite receiving antenna
(6 ) Antenna cable
(7) Antenna fixed accessories
(8) The user manual
(9) The software CD
(10) The packing List
1.3
Outline
With the rapid development of modern society, higher demand on the time precision and frequency is
put on the agenda. Nowadays with the development of modern digital communication networks and the
information superhighway construction, the political, cultural, technological and social information
coordination is based on a strict system of time synchronization, especially in the communications,
electricity, financial securities, computer networks, production line operation, administration and national
defense and other fields urgently need the time synchronization equipment.
