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RTC: (NTP) Time Server IP Address Select the IP address of the Network Time Server from
which the eCNA-10 will get it’s time.
Although the time server would normally be on the local network, here is a list of public time servers
on the internet used by the NIST Internet Time Service (ITS). The table lists the IP address and
location.
NIST Internet Time Servers
IP Address Location
129.6.15.28 NIST, Gaithersburg, Maryland
129.6.15.29 NIST, Gaithersburg, Maryland
132.163.4.101 NIST, Boulder, Colorado
132.163.4.102 NIST, Boulder, Colorado
132.163.4.103 NIST, Boulder, Colorado
128.138.140.44 University of Colorado, Boulder
192.43.244.18 NCAR, Boulder, Colorado
131.107.13.100 Microsoft, Redmond, Washington
69.25.96.13 Symmetricom, San Jose, California
206.246.118.250 WiTime, Virginia
64.125.78.85 WiTime, San Jose, California
207.200.81.113 Symmetricom, AOL facility, Sunnyvale, California
64.236.96.53 Symmetricom, AOL facility, Virginia
68.216.79.113 Columbia County, Georgia
71.13.91.122 Monroe, Michigan
64.113.32.5 Southfield, Michigan
When the eCNA-10 is correctly configured as an NTP client, but cannot connect or has lost it’s
connection to a time server, the NTP Server Not Found message is displayed on the local and web
screen’s active message line.
Note: If the time server is on the other side of a router that is connected to the network
subnet that the eCNA-10 belongs, remember to assign the router’s IP address to the
Gateway IP Address from the Ethernet Network setup screen.
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eCNA-10 Operation and Installation Manual Version 1.270-00
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