Xytronix Research & Design WebRelay-10 X-WR-10R12-I User Manual page 31

WebRelay-10 Users Manual
minutes [00-59], SS represents seconds [00-59].)
Figure 2.4f - Date/Time Tab - Sync with NTP Server
NTP Time Configuration
Server Name/IP Address
This field is used to specify the name or IP address of the NTP server. If a name is specified, a
working DNS server address must be entered into the Network settings. If the IP address is
specified, it should be entered in the following format aaa.bbb.ccc.ddd where each of the letters
represents a number between 0 and 255. This field can be up to 40 characters. There is no default
value for this field.
Many NTP Internet servers are available. In addition, many desktop computers will function as an
NTP server (both Mac and PC). If a desktop computer is used, firewall settings may need to be
adjusted to allow for NTP communications on port 123.
Public NTP servers can be found at www.pool.ntp.org. Some of these are listed below.
US Servers (http://www.pool.ntp.org/zone/us):
0.us.pool.ntp.org
1.us.pool.ntp.org
2.us.pool.ntp.org
3.us.pool.ntp.org
North America (http://www.pool.ntp.org/zone/north-america):
0.north-america.pool.ntp.org
1.north-america.pool.ntp.org
2.north-america.pool.ntp.org
3.north-america.pool.ntp.org
Europe (http://www.pool.ntp.org/zone/europe):
0.europe.pool.ntp.org
1.europe.pool.ntp.org
Xytronix Research & Design, Inc.
Installation and Setup
page 31