Related Manuals for GlobalTime Electronic GTT-100
Summary of Contents for GlobalTime Electronic GTT-100
- 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...
-
Page 2: Table Of Contents
GlobalTime NTP Products Catalog Catalog..................................2 Chapter 1 The basic product information and packaging................3 1.1 Key features..............................4 1.2 Packaging..............................4 1.3 Outline................................4 1.4 The device profile description........................5 Chapter 2 Hardware installation and commissioning..................7 The device structure..........................7 Outdoor installation..........................7 Indoor installation............................9 Chapter 3... -
Page 3: Chapter 1 The Basic Product Information And Packaging
The basic product information and packaging GTT-100 network time server is the professional network equipment providing high-stable time source. GTT-100 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). -
Page 4: Key Features
� 6 lamps display the device working status 1.2 Packaging Please check the shipping package which should contain the following items: (1) GTT-100 network time server (2) Power cable (3) GPS antenna cable (4) GPS satellite receiving antenna and the mounting support... -
Page 5: The Device Profile Description
Detailed description can be referred to the latest protocol standards documents RFC1305 and RFC2030. GTT-100 network time server can be compatible with NTP v2 / v3 / v4 in various versions. - Page 6 GlobalTime NTP Products Figure 1-1 The front panel The front panel: � VFD display, to show the basic status of the device and the current UTC time � The keyboard, to check and modify the system configuration � Two power lights, to indicate the two-way power supply �...
-
Page 7: Chapter 2 Hardware Installation And Commissioning
Figure 2-1 Device structure GTT-100 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.
-
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-100 starts to provide time... -
Page 10: Chapter 3 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 GlobalTime NTP Products of the first line indicates not receiving the satellite signal and "*" indicates receiving the satellite signal. 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...
-
Page 12: Reset Function
There is one 10/100M adaptive network port on GTT100. The default configuration is 192.168.2.8. It supports web, ssh, SNMP and NTP. GTT-100 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: Change Network Setting
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-100. Other devices can use the static IP to access GTT-100. -
Page 14: Ntp Configuration
GlobalTime NTP Products Note: When it displays " Please restart the machine to make the change active." , press " ENTER" to return to the previous interface. Then select "4 Exit", the setting can take effect. If directly turn off the computer, it will result in the configuration failed. - Page 15 GlobalTime NTP Products REMOTE:192.168.1.6，IP address of the backup machine WORKADDR:10.32.33.21，the working IP, that is, the shared IP of hot standby WORKMASK:255.255.255.0，the mask of the work address WORKGATEWAY:10.32.33.21，the gateway of the work address STRATUM: 7, For heartbeat detection level, the smaller, the higher. In the case that both of the devices have become hosts, the low-level one will be initiative to be the backup equipment based on the negotiation.
-
Page 16: Ntp Status
GlobalTime NTP Products 3.4.6 NTP status stratum=1， precision=-19， rootdelay=0.000， rootdispersion=35.55， Time source: GPS，Local time source can be internal clock, GPS, or OCXO press Q: return 3.4.7 GPS status Latitude: N31d18.182m represents latitude 31 degrees 18.182 minutes North. Longitude: E121d28.8331m represents121 degrees 28.8331 minutes East longitude. Received Satellite number: 6, the number of satellite signals received press Q return ! 3.4.8 System function... -
Page 17: Change The Password
GlobalTime NTP Products Figure 3-5 Change the password 3.4.10 Exit type "4" in the main configuration interface, it will return to the user-login screen. 3.5 Time server login through the network For the sake of the system security, the time server supports login by SSH. The login configuration is as the following interface. -
Page 18: Local Time Zone Display
GlobalTime NTP Products 3.5.1 Local time zone display Our new version allows users to configure time display on the front panel in different time zones. -
Page 19: Remote Dial-Up Maintenance
We can use the MODEM to achieve remote dial-up maintenance with the serial monitoring port of GTT-100 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 20: The Login Interface
GlobalTime NTP Products 3.7.1 The login interface The login screen is as shown in the Figure 1.1. The users must login the system and be authenticated before configuring the server. The figure below is the main interface after a successful login. welcome window The configuration item includes: (1) Network Settings (2) NTP settings (3) SNMP settings (4) Hot Standby (5) NTP status (6) GPS status... -
Page 21: Ntp Settings
GlobalTime NTP Products Network settings/ select the network card. 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. -
Page 22: Snmp Settings
GlobalTime NTP Products NTP settings The items BROADCAST, TRUSTED KEY, PEER represent the broadcast IP address, MD5 checksum and PEER respectively. When the BROADCAST and PEER are not put to use, it will display "disable". If you need to configure the settings, then enter the exact IP address and click Submit. TRUSTED KEY is the MD5 checksum and is used for checking the NTP service. -
Page 23: Check The Status
GlobalTime NTP Products 3.7.5 Check the status The time server provides simple status query with clicking "NTP status" or "GPS status", as is shown in the following Figure: NTP status status, there STRATUM (server layer), ROOTDELAY (delay), ROOTDISPERSION (precision). GPS status In GPS status, there are LATITUDE, LONGTITUDE and SATELLITE UMBER. - Page 24 GlobalTime NTP Products Firstly, double click the time mark on the right side of the windows task bar and it will pop up an interface with date and time properties. Then select the Internet time screen, which is shown as the picture in the next page. Secondly, modify the windows default time server, such as modifying to 192.168.2.8.
-
Page 25: Troubleshooting
GlobalTime NTP Products Fifthly, after modifying the registry, you should stop interfaces time service and restart it. Then the time interval can be updated. If it has been installed with other time synchronization software, you need to uninstall the software and restart the computer. The windows time service can work normally. For Win2000/98 operating system, the time synchronization software provided by our firm or provided by the third-party are both available. -
Page 26: Can Not Ping The Time Server After Configuration
GlobalTime NTP Products 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. 3.9.3 Can not ping the time server after configuration First, verify the physical network connection. -
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: Chapter 5 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.
Need help?
Do you have a question about the GTT-100 and is the answer not in the manual?
Questions and answers