Huahuan Electronics HX.PTP-GM02, Руководство пользователя

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Beijing Huahuan Electronics Co., Ltd
GeckoSynco is particularly suited in this regard.
In the scenario shown in Figure 2-1, a HX.PTP-GM02 is running the ITU-T
G.8275.1 profile. It is installed within an enterprise building as the local T-GM,
constitutes a PTP domain with all the smallcells and the enterprise LAN devices.
Smallcells get their timing synchronization from this PTP domain, and the public
internet provides backhaul connection to the carrier network. PTP packets are
local to the enterprise LAN, no PTP support is required in other parts of the
backhaul.
RAN NC
RAN NC
RAN NC
Carrier Network
Internet
GeckoSynco
Smallcell
Smallcell
Smallcell
Smallcell
Figure 2-1 Enterprise smallcell synchronization scheme
Because GeckoSynco uses our Peek2Sync design, it can be easily sucked
onto the inside of a window with resonable sky view. Unlike most GPS clocks,
GeckoSynco do not require an outdore satellite antenna, thus avoids the need for
site selection, mast installation and fixation, lightning protection, and other
precautions associated with an outdoor antinna. The indoor condition is also a lot
less harsh in terms of temperature, humidity, and other environmental factors,
which is more faverable for longer operating life, stablilty and realibility.
The integrated design means that the connection between the GeckoSynco
and the network equipment, which is typically in the equipment room at a fixed
location far from the rooftop, is Ethernet. This meas the distance between the
window site and the equipment room can be separated up to 100 meters. Much
longer distance may be reached with optical Ethernet. This is in contrast with
clocks using analog coax cable to connect to the rooftop antenna unit. Outdoor
HX.PTP-GM02 IEEE-1588 Grandmaster Clock V1.0 5