Huahuan Electronics HX.PTP-GM02, User Manual

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Beijing Huahuan Electronics Co., Ltd

SyncE slave
Extract frequency signal from the optical Ethernet port.

SyncE master
Provide Ethernet frequency extracted from GNSS or internal holdover
signal.
As the GM in a domain, the HX.PTP-GM02 is most likely to be a SyncE
master, providing frequency as well as time reference to the rest of the network.
But sometimes, a domain may wish to receive its frequency from a connected
SyncE network while get accurate time from the local GM. Putting the HX.PTP-
GM02 in SyncE slave mode may ease the frequency acquisition process from a
GNSS.
3.3.3. PTP Grandmaster Clock
The primary role of the GeckoSynco is intended to be a grandmaster clock in
a PTP domain described in IEEE-1588V2 standard. More than one GM may be
used in a domain, and PTP best master protocol will select the best one among
them to be the reference clock for the domain. Each GeckoSynco will announce
its clock quality according to operational status. Multiple GMs provide
redundancy for better reliability.
Different industries use different subsets of the configurable parameters
specified in the original IEEE-1588V2 standard. The subsets are defined as
specific profiles by respective industry standards. A user can select the
appropriate profile among a set of built-in ones through the web browser. With a
specific profile, some of the parameters are fixed, while others are given a settable
range that may be reduced from what is allowed by IEEE 1588V2. Parameters
adjustable within each profile are also set through the web page. See section 6.1.6
for details.
HX.PTP-GM02 IEEE-1588 Grandmaster Clock V1.0 17