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Title : GPS based Embedded NTP (Network Time Protocol) Server Solution Release





AddPac GPS based embedded NTP server with GPS time receiver hardware receives GPS time information from GPS satellite and performs the NTP(network time protocol) server service for network based application server which requires accurate time information like as CCTV NVR server. Without GPS based time synchronization or NTP server, if time is passed after installation or in service, each application server’s time clock is mismatched comparing with GPS based real-time. Especially, in case of CCTV application, time mismatching should be solved between real-time and CCTV application server’s current time. Especially this NTP server solution is very applicable in isolate network, and separated network from internet. Legacy GPS time receiver products only support RS232C Interface for commercial hardware based NTP server but AddPac embedded NTP server has internal GPS time receiver hardware, and supports fast ethernet port as well as dual RS232 interface for backward compatibility. AddPac embedded NTP serveris easy to manage remotely and provides excellent scalability. This device can be applied to various real-time video applications such as video surveillance, traffic management and monitoring for disaster prevention.

AP-GTR2000 provides easy system cabling and Installation service by using LAN interface and internal GPS time receive hardware module. By using embedded Linux operating system, AP-GTR2000 provides stable network time service using simple NTP service. In front of AP-GTR2000, there are LCD display for GPS time information and blue LAMP for device status. Also, there are one fast Ethernet port and console port. At the rear of AP-GTR2000, there is one module slot for AP-GPSR2 module. AP-GPSR2 module provides dual DB-9 RS232 interface port and GPS antenna interface port.

AP-GTR1000 GPS based embedded NTP server with internal GPS hardware module has compact size and this device is very light. Under mobile environment like as vehicle, this NTP server is applicable. This NTP server transmits GPS time information to network based application server which requires accurate time information via ethernet port. In local area network, this device transmits GPS based time information to application server like as CCTV recording serverby using IP based protocol. In front of AP-GTR1000, there are LCD display for GPS time information and blue LAMP for device status. Also, there are one fast ethernet port and console port. At the rear of AP-GTR1000, there is one module slot for AP-GPSR2 module. AP-GPSR2 module provides dual DB-9 RS232 interface port and GPS antenna interface port.AP-GTR1000 embedded NTP serversupports Smart Web Manager for system management. User may setup/manage AP-GTR1000 system through PC, smart phone, and tablet device.

Network Diagram



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