l A terminal unit provides Ethernet access so an ONU can receive the collected information
over Ethernet.
l The information is transmitted over a GPON network.
Networking
Figure 17-6 shows an example network for configuring the automatic transmission of power
distribution site information in the electrical power system over Ethernet.
l ONU_A and ONU_B are connected to terminal units through a GE or FE autonegotiation
electrical port. After receiving messages from a terminal unit, ONU_A and ONU_B report
the messages to the OLT. The OLT forwards the messages to the master station system.
l In a dual homing scenario, an ONU is connected to two OLTs. Each OLT provides a passive
optical network (PON) port. An ONU provides two PON ports for upstream transmission,
and the backbone fiber, optical splitter, and distribution fiber are configured for redundancy
backup. In this scenario, GPON type C dual-homing protection can be configured to ensure
service reliability.
Figure 17-6 Example network for configuring automatic transmission of power distribution site
information in the electrical power system over Ethernet
Master station system
ONU_A
ONU_B
GE/FE
GE/FE
LAN Switch
Terminal unit
Terminal unit
OLT_A
Transmission
OLT_B
OSN
/PTN
OSN
/PTN
Splitter
Standby Link
Active Link
NOTE
In this example, an MA5621 is used as the ONU.
SmartAX MA5600T/MA5603T/MA5608T Multi-service
Access Module
Commissioning and Configuration Guide
17 Electrical Service Configuration
Issue 01 (2014-04-30) Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
1832
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