Installation & Operation Manual TCC70XS
Page 49
Configuration
Fudge Stratum
This value should be “1” for normal applications
.
If a network includes several NTP server devices, it may be useful to
allocate different priorities. The NTP standard does not provide a manual
set
–
up of priorities, but it may facilitate an installation under certain
circumstances. That is the reason why this set
–
up is offered at this place.
The “Fudge Stratum” value determines the
NTP Stratum
value during
normal operation:
“1“ = highest priority
→
NTP Stratum
= “1”
;
“2“ = next lower priority
→
NTP Stratum
= “2”
.
In case of an error (please also refer to chapter
“
NTP Status and
Troubleshooting
“) the “Fudge Stratum” value will act as an offset to the
NTP Stratum
:
Offset = Fudge Stratum
–
1.
Ignore Sync Status
This checkbox should not be checked for normal applications.
The NTP server
indicates its status at the “Stratum”
and
“Reference”
fields.
The content of these fields depends on the precision of the real
–
time clock.
This is an internal clock of TCC70XS which is set and tuned by a real
–
time
reference (which is either an external real
–
time reference at the REF/GPI
connector or the NTP client). The internal real
–
time clock has no high
precision if it has not been set at all, or it has been set manually, or the
last tuning was a long time ago, or the last tuning occurred while the real
–
time reference was in an “unlock” state. Chapter “NTP Status and
Troubleshooting“ gives a detailed description of possible values of the
“Stratum” and “Reference” fields
.
Under certain circumstances and in some applications, a high stratum
value may be an essential problem. To overcome this problem and to
continuously offer the NTP server for reference within the local network,
this set
–
up is offered at this place. If checked, the stratum value will be
kept =
“Fudge Stratum” always
.
