NTP Server Sentinel®Installation and Operation Manual
OVERVIEW
Product Overview
The NTP Server Sentinel® is a standalone "ready-to-run" GPS referenced NTP
time server offering a complete solution for synchronizing the time across TCP/IP
LANs using NTP. The NTP Server Sentinel® combines a GPS receiver with an embed-
ded web based controller and is configured and managed via a web browser. The mon-
itor and control web page displays date, time, locked satellite signal strength with mul-
tiple display features. The NTP Server Sentinel® can handle multiple requests per sec-
ond, making it the choice for providing accurate time information. The concept is as
simple as plugging the controller into the network, attaching the GPS receiver, config-
uring the unit and allowing any client to request “highly accurate” time.
Additional features include; three separate GPS time referenced outputs. The
first is a DPDT relay, which operates at 12:00, 22:00, 42:00, 54:30 each hour and is
user programmable in each of four storage locations for any minute and second each
hour. The second output is an active high driver with a 100 ms pulse each second,
while the third output provides an active high driver in the ESE TC89 or TC90 serial
time code format. Indicator LED's are provided to display; power, 1PPS activity, seri-
al time code activity and time sync relay operation. The NTP Server Sentinel® is sup-
plied with a Garmin GPS18 receiver, which tracks up to 12 satellites. The GPS-18 can
be positioned up to 100 feet away from the controller, using standard CAT5 cable. The
controller may be desk mounted or up to three units may be mounted on our RA-1, 1-
RU rack shelf. The controller is supplied with a domestic DC power supply.
Features/Benefits
• Ready-to-operate Stratum 1 NTP Time Server.
• Support for NTP and SNTP compatible clients.
• Configured across network via web browser.
• Upgradeable flash memory.
• RJ-45 Ethernet interfaces 10/100 base-T.
• Web based display for Time and Satellite Status.
• Standard CAT5 GPS receiver cable length up to 100 feet.
• TC 89 or TC90 serial time code output.
• 1-pulse-per-second output.
• User-programmable time sync relay.
• Email logging and error reporting
• Secure proprietary operating system for enhanced security
• One year warranty
Applications:
Standalone "ready-to-run" GPS referenced NTP time server.
TC89 or TC90 serial time code source.
Time sync closures for legacy systems.
Inspection
Please examine your NTP Server Sentinel® carefully for any damage that may have
been sustained during shipping. If any damage is noted, please notify the shipper
immediately and retain the packaging for inspection by the shipper. The package
should contain the NTP Server Sentinel®, a Garmin GPS18 LVC GPS receiver, this
manual and/or CD, 7 foot BLUE straight-through CAT 5 cable, 7 foot GRAY
crossover CAT 5 cable, and the 7.5 to 9.0 VDC wall transformer. Manuals may also
be downloaded from our web site.
