Fujitsu PRIMEQUEST 500A Installationshandbuch Seite 466

No. Page Item
2 2-33
2.2.4.4
Setting the date
and time
Addition
(2) With the NTP service of the MMB active, it starts when the MMB is reset, duplication
of the MMB is switched, and the AC power is changed from OFF to ON.
3. Specifications of operations during NTP client time synchronization
The method for adjusting the NTP time varies depending on the firmware version and
NTP operation mode (Step mode/Slew mode).
(1) In Step mode, if the time difference between the MMB and the NTP server being
synchronized with is:
1) less than 0.128 second, a slew adjustment is made (corrected maximally for 0.0005
second per second without reversal);
2) equal to or greater than 0.128 second and less than 1000 seconds, a step
adjustment is made; (in this case, reversal is possible) or
3) equal to or greater than 1000 seconds, the NTP function stops.
(2) In Slew mode, the operation varies depending on the version as follows. Note that
the PQ480/440/420 have no Slew mode.
(a) PQ520:
PQ580/540:
PQ510A:
PQ520A/520X:
PQ580A/540A:
If the time difference between the MMB and the NTP server being synchronized
with is:
1) less than 0.5 second, a slew adjustment is made (corrected maximally for
0.0005 second per second without reversal);
Description
3.24 and 3.25
3.24 and 3.25
4.14 and earlier
4.17 and earlier
4.17 and earlier
2