Related Manuals for GlobalTime Electronic GTT-200
Summary of Contents for GlobalTime Electronic GTT-200
- Page 1 GlobalTime NTP Products Tel:+86-21-36531186 Fax:+86-21-36531185 Web: www.ntpclock.com Email: contact@ntpclock.com Add: A2-1, No.399 Dakang Road, Baoshan District, Shanghai,China Zip code: 200443...
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Page 2: Table Of Contents
GlobalTime NTP Products Catalog Catalog········································································································· 2 Chapter 1 The basic information and packaging································································3 1.1 Key features···································································································································4 1.2 Packaging······································································································································ 4 1.3 Outline············································································································································ 5 1.4 The device profile description····································································································· 6 Chapter 2 Hardware installation and commissioning························································ 7 2.1 The device structure·····················································································································7 2.2 Outdoor installation·······················································································································7 2.3 Indoor installation··························································································································9 Chapter 3 Equipment maintenance····················································································10... -
Page 3: The Basic Information And Packaging
The basic product information and packaging GTT-200 network time server is the professional network equipment providing high-stable time source. GTT-200 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... -
Page 4: Key Features
� 6 lamps display the device working status Packaging Please check the shipping package which should contain the following items: (1) GTT-200 network time server (2) Power cable (3) GPS antenna cable (4) GPS satellite receiving antenna and the mounting support... -
Page 5: Outline
Detailed description can be referred to the latest protocol standards documents RFC1305 and RFC2030. GTT-200 network time server can be compatible with NTP v2 / v3 / v4 in various versions. -
Page 6: The Device Profile Description
GlobalTime NTP Products The device profile description The front panel description: N T P G P S G LO BA LT IM E Synchronized o c x o 2 0 0 9 /0 1/01 08:3 5:2 6 P O W 1 P O W 2 监... -
Page 7: Chapter 2 Hardware Installation And Commissioning
Figure 2-1 Device structure GTT-200 network time server consists of the outdoor part and interior part. The outdoor part is composed of the GPS satellite receiving antenna, surge arrester and antenna amplifier (optional). The function is to complete the reception of satellite signals. - Page 8 200 meters to 300 meters, two more amplifiers are needed. If you need longer feeder links, please contact us, GlobalTime Electronic Co., Ltd. We will provide the special program to you. The feeder usually adopt 1 / 2 inch RF cable whose loss is 12.8dB/100m from the United States Andrew's.
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Page 9: Indoor Installation
Last, log on the network time server through Telnet to observe the satellite receiving state, the information on time tracking state of the server and so on. When the server locks the satellite time ( The indicator light on the panel turns green), GTT-200 starts to provide time... -
Page 10: Equipment Maintenance
GlobalTime NTP Products information to other clients within the network. The specific process of software configuration can refer to the following chapter. Chapter 3 Equipment maintenance 3.1 Indicator state Table 3-2 Indicator status Indicator Status Description The power supply is normal Power supply The power supply is abnormal The server is unlock and is searching for... -
Page 11: Server Configuration Debugging
GlobalTime NTP Products The second line shows the time, following the format of "year, month, day, hour", for example: "2005/06/24 13:21:08" Press OK to enter the display menu. There are three items: Network Information GPS Information NTP Information You can select an item with the arrow keys. The interface is shown up as two lines, of which the one above is the current "focus line", by the right-click to expand the item while by the left-click to return to the previous menu. -
Page 12: User Login
GlobalTime NTP Products GTT-200 network time server can conduct maintenance and management through the local serial cable connection or the remote telnet connection. The local connection needs to use a cross serial cable with connectors on both sides (that is, 2,3 feet of the two sides are cross connected). -
Page 13: Ntp Configuration
As a result, in DHCP network system, the recommended configuration is to assign a static IP address from the IP Pool of DHCP server to GTT-200. Other devices can use the static IP to access GTT-200. -
Page 14: Snmp Setting
GlobalTime NTP Products NTP peer means that the double devices work in a peer to peer mode as the backup time source for each other. When GPS is not working well, the spare time source can be put to use while the levle of local time server will be reduced to 2. NTPbroadcast is the broadcast mode of lower timing accuracy but larger system capacity which can reduce the network data flow. -
Page 15: Ntp Status
GlobalTime NTP Products then B acts as the host while machine A is the backup equipment; if both of the machines are started in the same time, then the Master (can be configured) machine is the host. After restarting the host, it will remain to be the host. 2. -
Page 16: Chage The Password
GlobalTime NTP Products press Q return ! 3.3.8 System function 1). ping input target IP(Q return): input the target IP address and then press “ Enter” , by pressing “ Ctrl +c” to return to the previous sub-menu while “Q” to return to the previous menu. 2). -
Page 17: Time Zone Display Function
GlobalTime NTP Products SSH login configuration interface 3.4.1 Time zone display function Our new version allows users to configure time display on the front panel in different time zones:... -
Page 18: Remote Dial-Up Maintenance
We can use the MODEM to achieve remote dial-up maintenance with the serial monitoring port of GTT-200 network time server. In order to make it, please follow these steps: Initially, set the MODEM to auto answer mode and connect the MODEM and a computer serial port with a serial cable. -
Page 19: Time Server Login Through The Web Browser
Note: The commands are case sensitive. Then connect the MODEM and GTT-200 network time server monitoring port with a serial cable. Then plug the telephone line. Finally, dial this number through the Hyper Terminal of another computer with MODEM and it can be connected with the server. The configuration is as introduced in section 3.2. -
Page 20: Network Settings
GlobalTime NTP Products welcome window The configuration item includes: (1) Network Settings (2) NTP settings (3) SNMP settings (4) Hot Standby (5) NTP status (6) GPS status 3.6.2 Network settings Click “Network settings” in the navigation bar, it will enter the network configuration item. in the navigation bar click on "Network Settings". -
Page 21: Ntp Settings
GlobalTime NTP Products Then, set the related options. If you need to set a fixed IP for the network card, then select STATIC in the BOOTPROTO item. The operation is shown in Figure 1.3.1. Then assign the appropriate IP, subnet mask and gateway. Finally click Submit to save the settings. If there is no need for fixed IP, the network card will get IP through DHCP. -
Page 22: Snmp Settings
GlobalTime NTP Products When setting the key number in the ID box, values range from 1 to 65535 and can not be repeated. The key value consists of the 8-bit characters and no punctuation is allowed. The fixed format: "ID M xxxxxxxx". After entering the two items for submission, the system will automatically save it to a fixed format and set it out in the web pages. -
Page 23: Client Configuration
GlobalTime NTP Products status, there STRATUM (server layer), ROOTDELAY (delay), ROOTDISPERSION (precision). GPS status In GPS status, there are LATITUDE, LONGTITUDE and SATELLITE UMBER. Note: The items above require filling in the right IP, otherwise it will result in the checkout failure and will not be saved. - Page 24 GlobalTime NTP Products Fourthly, if you consider the synchronization cycle is too long, you can modify the registry to shorten the synchronization cycle. The specific registry key is in: \HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\W32Time\TimeProvid ers\NtpClient\SpecialPollInterval The default is 604800 = 60 × 60 × 24 × 7, namely, a week. synchronization once a day: The default is 86400 synchronization once an hour: The default is 3600 synchronization once ten minutes: The default is 600...
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Page 25: Troubleshooting
After eliminating the above breakdown, if it still can not receive the satellite signal, please contact the service hotline of Shanghai GlobalTime Electronic Co., Ltd. Our engineers will help you with the further processing. -
Page 26: Instable Satellite Signal, And The Machine Is In Hold Mode Sometimes
GlobalTime NTP Products a protective screen from ping operation. So it’s better to check the network after turning off the firewall. 3.8.4 Instable satellite signal, the equipment is in hold mode sometimes In general, it is caused by the improper site selection of the satellite receiver antenna. If this trouble occurs frequently, you should consider to select another site to install the antenna, that is, a place free of anything overshadowed and the surrounding microwave interference. -
Page 27: Chapter 4 Detailed Performance Index Of The Equipment
GlobalTime NTP Products Chapter 4 Detailed performance index of the equipment GPS receiver � 12 channel GPS receiver � L1-Band, C/A Code � position hold-type � Cold-start time: 200 seconds � Warm-start time: 50 seconds � Hot-start time: 25 seconds �... -
Page 28: Appendix
Chapter 5 Appendix Shanghai GlobalTime Electronic Co., Ltd is a leading company that focuses on professional time synchronization products and services. We have our own intellectual property rights. We provide 7x24-hour hot line for technical support. If you have any inquiry about our products or the solutions, please feel free to contact us.
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