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#          Institute of Mine Seismology 		#
#                                                       #
# The following configuration entries are required	#
# in the NTP enviroment of an IMS seismic system.	#
# Please add the following to the existing NTP		#
# configuration file. (example /etc/ntp.conf)		#
#							#
# Remove public NTP servers if not used.		#
							#
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# Local clock - last resort for IMS devices to slave to 
# if no  other sources are reachable
server 127.127.1.0
# Fudge local clock's stratum to be greater (worse) than 
# any other likely sources of time
fudge 127.127.1.0 stratum 10

# Local NTP server provided by IT
#server myserver.mydomain.com

# GPS receiver with NMEA sentences on port "/dev/gps0"
# (remember to make a udev rule for this symlink to
# point to the correct serial port with correct 
# permissions)
# The mode argument instructs the NMEA GPS driver of NTP
# to open the port at 9600 baud and use all supported 
# NMEA sentences ($GPMRC, $GPGGA, $GPGLL, $GPZDA or 
# $GPZDG)
# Fudge this clock to use PPS (flag1=1), use rising edge
# of PPS signal (flag2=0) and use kernel discipline 
# (flag3=1)

# uncomment the following two lines for ntpd to access
# GPS NMEA messages from /dev/gps0
#server 127.127.20.0 mode 16
#fudge 127.127.20.0 flag1 1 flag2 0 flag3 1

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#          Institute of Mine Seismology 		#
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