User’s Manual
a hierarchical-master-slave configuration with the primary servers at the root and secondary servers
of decreasing accuracy at successive levels toward the leaves.
9.4 GPS Time Sync Unit
GPS TIME SYNC UNIT MC-1-
which provides the functionality of NTP server. This NTP output is capable to synchronize time of va
ious NTP clients such as windows PC, Unix/Linux machines and other clients which support NTP pr
tocol. GPS TIME SYNC UNIT
terms of accuracy) after atomic clock providing the NTP timestamp output resolution in milliseconds.
Stratum level 1 indicates that a device synchronizes its own clock fr
GPS TIME SYNC UNIT MC-1-
sponds only when there is NTP request from NTP clients. NTP clients operating at stratum level lower
than 1 (i.e. 2 to 15) can synchroni
GPS TIME SYNC UNIT MC-1-
(when there is no satellite signal available) depending on its internal RTC clock time and accuracy. If
required, user can configure stratum level (2 to 15) of NTP output only for holdover conditions which
is applicable when GPS TIME SYNC UNIT
vides the indication to NTP client devices whenever
holdover mode during ideal run conditions. Under Lock conditions,
NTP output will always operate at stratum level 1 which cannot be changed.
User should change the stratum level
knowledge of its NTP Server-Client network hierarchical level architecture. Stratum level decreases
by 1 at every NTP server-client level stages with respect to
el.(Stratum at the topmost level (primary GPS servers) is assigned as one and each level downwards
(secondary servers) in the hierarchy assigned as one greater than the preceding level). If the stratum
level of GPS TIME SYNC UNIT
client will synchronize its time with NTP server output as level 15 is the last limit of stratum as per
NTP standard.
Below are the list of some of all NTP packet parameters which
to NTP server.
Doc Ref. No:
slave configuration with the primary servers at the root and secondary servers
of decreasing accuracy at successive levels toward the leaves.
GPS Time Sync Unit NTP Output:
-DE device is equipped with 10/100 Mbps based Ethernet output port
which provides the functionality of NTP server. This NTP output is capable to synchronize time of va
ious NTP clients such as windows PC, Unix/Linux machines and other clients which support NTP pr
GPS TIME SYNC UNIT MC-1-DE operates at stratum 1 level which is the highest level (in
terms of accuracy) after atomic clock providing the NTP timestamp output resolution in milliseconds.
Stratum level 1 indicates that a device synchronizes its own clock from radio clock or satellite clock.
-DE NTP output operates in Unicast mode in which NTP server r
sponds only when there is NTP request from NTP clients. NTP clients operating at stratum level lower
than 1 (i.e. 2 to 15) can synchronize their time from GPS TIME SYNC UNIT MC-1-DE
-DE continuous to provide NTP output even under Unlock conditions
(when there is no satellite signal available) depending on its internal RTC clock time and accuracy. If
uired, user can configure stratum level (2 to 15) of NTP output only for holdover conditions which
GPS TIME SYNC UNIT MC-1-DE device is in Unlock condition. This feature pr
vides the indication to NTP client devices whenever GPS TIME SYNC UNIT MC-1
holdover mode during ideal run conditions. Under Lock conditions, GPS TIME SYNC UNIT
NTP output will always operate at stratum level 1 which cannot be changed.
User should change the stratum level GPS TIME SYNC UNIT MC-1-DE device carefully, after having
Client network hierarchical level architecture. Stratum level decreases
client level stages with respect to GPS Time Sync Unit device stratum le
pmost level (primary GPS servers) is assigned as one and each level downwards
(secondary servers) in the hierarchy assigned as one greater than the preceding level). If the stratum
GPS TIME SYNC UNIT MC-1-DE device is configured at 15 under Unlock conditions, no NTP
client will synchronize its time with NTP server output as level 15 is the last limit of stratum as per
Figure 26 NTP Time Output
Below are the list of some of all NTP packet parameters which are functionally significant with respect
Model: MC-1-DE
Doc Ref. No:-m05dom102
Issue No:-00
Page 54 of 76
slave configuration with the primary servers at the root and secondary servers
d with 10/100 Mbps based Ethernet output port
which provides the functionality of NTP server. This NTP output is capable to synchronize time of var-
ious NTP clients such as windows PC, Unix/Linux machines and other clients which support NTP pro-
operates at stratum 1 level which is the highest level (in
terms of accuracy) after atomic clock providing the NTP timestamp output resolution in milliseconds.
om radio clock or satellite clock.
NTP output operates in Unicast mode in which NTP server re-
sponds only when there is NTP request from NTP clients. NTP clients operating at stratum level lower
DE NTP output.
continuous to provide NTP output even under Unlock conditions
(when there is no satellite signal available) depending on its internal RTC clock time and accuracy. If
uired, user can configure stratum level (2 to 15) of NTP output only for holdover conditions which
device is in Unlock condition. This feature pro-
1-DE device enters
GPS TIME SYNC UNIT MC-1-DE
device carefully, after having
Client network hierarchical level architecture. Stratum level decreases
device stratum lev-
pmost level (primary GPS servers) is assigned as one and each level downwards
(secondary servers) in the hierarchy assigned as one greater than the preceding level). If the stratum
conditions, no NTP
client will synchronize its time with NTP server output as level 15 is the last limit of stratum as per
are functionally significant with respect
