Info/Overview - Safran WR-ZEN Series User Manual

5.5 External Reference (GM)
OID
3.7110.1
3.7110.2
3.7110.3
3.7110.11
3.7110.15
5.5.2

Info/Overview

The GM timing source provides its own overview panel under Overview > Timing
General > External Reference (GM), where the user can easily audit the condition
of its external reference (see figure below).
100
Name Value Type
GM Offset <Integer>
Default: 0
Priority1 <Integer>
Default: 128
Priority2 <Integer>
Default: 128
Clock Accur- <Enum> Default:
acy Unknown
Leapsec file <Enum>Default:
ignore OFF
Caution: If GM is used as a timing source, it should always be asso-
ciated to the configuration of at least one NTP server to properly
recover the time of day (ToD).
Description
Offset to compensate user cable delay for PPS
input (in picoseconds). When Align PPS is
enabled the PPS output should be aligned to
the PPS input but the user might want to com-
pensate this delay.
PTP Priority1 announced when the GM is act-
ive. It is mainly used by BMCA to force the
best-clock selection using 1st priority (Lower
values take precedence).
PTP Priority2 announced when the GM is act-
ive. It is mainly used by BMCA to force the
choice between two references when their
clock qualities are the same (Lower values
take precedence).
It announces the expected accuracy provided
by the external reference. It shall be con-
servatively estimated based on the type of
time source (e.g., Atomic Clock <= 1ns, GNSS
receiver <= 50ns).
Leapsec_file_ignore disables the critical warn-
ing when the leap second file is expired.
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5 WR-ZEN Series User Manual Rev. v5.1