AP-GTR250 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. AP-GTR250 embedded NTP server terminal is 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
IP based GPS NTP Server
AP-GTR250 embedded 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 server by using NTP protocol.
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.
AP-GTR250 provides easy system cabling and Installation service by using LAN interface and internal GPS time receive hardware module.
In front of AP-GTR250, there is one fast Ethernet port, RS232C console port and external GPS antenna interface port. Also, there is LED display for GPS Time Display (Hour/Minute/Sec) and GPS Synchronization. At the rear of AP-GTR250, there is external power supply interface and power on/off switch. Default GPS antenna cable is 10m.
Firmware Upgradeable Structure
AP-GTR250 RISC CPU is programmable structure so that user may use the latest features without much effort by simply setting an auto upgrade option or download from the homepage.
Smart Web Manager Function
AP-GTR250 embedded NTP server is embedded with Smart Web Manager for system management. User may setup/manage AP-GTR250 system through PC, smart phone, and tablet device.
AddPac network products are well recognized in terms of performance and stability in the world. With our accumulated experience in enterprise market and communication market, AP-GTR250 embedded NTP server with internal GPS time receiver hardware module will satisfy the needs of customer along with AddPac network CCTV solution.
32bit RISC Microprocessor
Network Interface Module
1-Port 10/100Mbps Fast Ethernet Interface (1 x
GPS Time Display
LED Display for GPS Time (Hour/Minute/Sec)
GPS Antenna Interface for External GPS Antenna, Default
GPS Antenna length is 10m
One(1) RS-232C Interface (RJ45)
VAC 110~220V , 50/60Hz, 5V 5A
VAC 110~220V , 50/60Hz, 5V 2A , External Power Adaptor
-40°C ~ +85°C (-40° ~ +185°F)
5% to 95% (Non-condensing)
H x W x D (mm)
28mm x 125mm x 90mm
Standard & Extended IP Access List
Enable/Disable for Specific Protocols
Multi-Level User Account Management
Auto-disconnect for Telnet/Console Sessions
Standard SNMP Agent (MIB v2) Support
Remote Management using Console, Rlogin, Telnet
Web based Managements using HTTP Server Interface
Other Scalability Features
DHCP Server & Relay Functions
Transparent Bridging (IEEE Standard) Function
→ Spanning Tree Bridging Protocol Support
→ Remote Bridging Support
→ Concurrent Routing and Bridging Support