Synchronization

This section shows how to configure time synchronization settings for the MRU. Users can configure parameters such as NTP synchronization state, server list, and PPS-related settings including ZDA offset, polarity, and decoding options.

NTP timesync configuration

GET/SET TIMESYNC
SETTING GROUP	DESCRIPTION	DEFAULT	VALID RANGE	NOTE
state	state of NTP synchronization service		start, stop, restart
serverlist,configfile	NTP servers name			List all ntp servers
serverlist,connection				Display status of all listed ntp servers

Example:

Examples of 'get' and corresponding 'set' commands within the timesync domain are provided below.

GET	SET
get,timesync,ntp,state	set,timesync,ntp,state,start
get,timesync,ntp,serverlist,configfile	set,timesync,ntp,state,stop
get,timesync,ntp,serverlist,connection	set,timesync,ntp,state,restart
	set,timesync,ntp,serverlist,0.pool.ntp.org;1.pool.ntp.org;2.pool.ntp.org;3.pool.ntp.org

Example usage

MRU – NTP Setup & Commands

1. Stop / Start NTP

CODE

set,timesync,ntp,state,stop
# Stop NTP timesync

set,timesync,ntp,state,start
# Start NTP timesync

2. Configure NTP Servers

Set full server list (servers separated by ;):

CODE

set,timesync,ntp,serverlist,0.pool.ntp.org;1.pool.ntp.org;2.pool.ntp.org;3.pool.ntp.org;10.0.0.100
# Update NTP server list

3. Verify Configured Servers

CODE

get,timesync,ntp,serverlist,configfile
# Show servers from config file

4. Check Sync State

CODE

get,timesync,ntp,state
# Show current sync status (which server is used)

5. Check Connection

CODE

get,timesync,ntp,serverlist,connection
# Show current NTP connection and active time source

PPS configuration

GET/SET PPS
SETTING GROUP	DESCRIPTION	DEFAULT	VALID RANGE	NOTE
pps	Enable the PPS Synchronization	off	off, on
ZDAoffset	number of millisecond you want to add to the ZDA message if there is a miss alignment problem	0
ZDApolarity	Polarity of the PPS signal	0	0,1	0: Select the falling edge to be the start of the second 1: Select the rising edge to be the start of the second
ZDAdec	number of decimal digit	4	[2,4]	2 → 0.01 3 → 0.001 4 → 0.0001

Example:

Examples of 'get' and corresponding 'set' commands within the pps domain are provided below.

GET	SET
get,pps<CR><LF>	set,pps,on<CR><LF>
get,pps,zdaoffset<CR><LF>	set,pps,zdaoffset,0<CR><LF>
get,pps,zdapolarity<CR><LF>	set,pps,zdapolarity,1<CR><LF>
get,pps,zdadec<CR><LF>	set,pps,zdadec,2<CR><LF>