Note: PTP in management ports (Eth): In scenarios with a high load of
traffic, a non-optimal amount of timestamps is lost through copper ports
(eth management ports). However, this behavior does not appear in optical
ports. Hence, even though this functionality has been saved to keep the
compatibility with previous firmware architectures, it is not recommended
to use PTP through management ports.
5.5 External Reference (GM)
5.5.1 Configuration
The Configuration of the GM is partially done by the Preset and then by the Configuration
Tab under the Timing > External Reference (GM) section.
If the user selects the Custom Preset it might be able to configure the following para-
meters when expanding (+) to the Advanced View for the GM source type:
OID Name Value Type Description
3.7110.x gm/cfg/xxx Configuration of the GM timing source (By
Preset).
.
3.7110.2 Align PPS <Boolean> Enable this to align the PPS output to the PPS input
during the locking procedure. It should be enabled
when using a GNSS receiver as external reference as
PPS might be shifted from 10MHz after each GNSS
relock.
3.7110.4 Source
Type
• ATOMIC
CLOCK
• GNSS
• PTP
• OTHER
Type of timing source announced by the GM. It should
correspond to the type of external reference that
provides 10MHz/PPS to the front-panel of the device.
(This field is informative and not used for decision mak-
ing).
3.7110.7 PPS Man-
datory
• YES
• NO
• STARTUP_
ONLY
Controls whether an PPS input signal is needed to
enter/stay active for the GM source.
The user can also configure the following parameters independently from the chosen pre-
set:
OID Name Value Type Description
3.7110.x gm/cfg/xxx Configuration of the GM timing source (By
Preset).
.
5.5 External Reference (GM)
CHAPTER 5 • WR-Z16 User Manual Rev. v3.4
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