Loopb
ack
Mode
Function Networking Configuration
Remote
loopba
ck on
the
ONU
Loops back
signals to the
user side on the
ONU. This
loopback checks
whether the link
between the
ONU and user
terminal is
normal.
E1 line
tester
OLTONU
Remote loopback
E1
huawei(config)#interface
tdm
huawei(config-if-tdm-)
#loopback 0 remote
huawei(config-if-tdm-)
#undo loopback 0
13.3.3 Enterprise IP PBX Private Line Access Service
ONUs provide GE/FE ports to access IP private branch exchange (PBX) services of an enterprise
and transmit them to an OLT. Then, the OLT forwards the service data upstream to the packet
switched network (PSN). This achieves unified carrying of voice, data, and video services.
13.3.3.1 Service Requirement and Application Scenario
Service Requirement
l The IP private branch exchange (PBX) data can be transparently transmitted on the PON
network.
l The operation method for end users connected to the IP PBX is not changed.
Application Scenario
As shown in Figure 13-8, ONUs access IP PBX services through FE/GE ports. The OLT
transparently transmits the data to the IP network in QinQ mode.
Applicable ONUs: MA5612, MA5628, MA5616
Figure 13-8 Networking diagram of the IP PBX access service
NGN/IMS
Splitter
OLT
ONU
IP PBX
ONU
IP network
GE/10GE
IP PBX
F
E
/
G
E
F
E
/
G
E
SmartAX MA5600T/MA5603T/MA5608T Multi-service
Access Module
Commissioning and Configuration Guide 13 FTTO Configuration (Large-sized Enterprise Access)
Issue 01 (2014-04-30) Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
1299
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