4.
The Tx clock of the E1 or ETH port on the ONU is synchronized to the system clock of
the ONU.
Procedure
Step 1
Configure the OLT-side clock.
1.
Configure a system clock source.
Run the
clock source
command to configure the line clock of the GE/10GE port on the
GIU board as the system clock source. Set the clock source ID to 0.
The clock module automatically judges the types of the specified clock sources (ETH), and
selects them according to their priorities, serving as clock sources for phase lock.
huawei(config)#
clock source 0 0/19/0
2.
Set the priority of the system clock source.
Run the
clock priority
command to configure clock source 0 to have the highest priority.
huawei(config)#
clock priority system 0
3.
Query the configuration and status of the system clock source.
Run the
display clock source
command to query the configuration and status of the clock
source. Ensure that the configuration information about the system clock is matching and
the status is normal.
Step 2
Configure the ONU-side clock.
1.
Configure the PON line clock source as the system clock.
The system clock of the OLT is issued to the ONU through the optical path of the PON
port, implementing the clock synchronization between the OLT and the ONU.
a.
Run the
clock source
command to configure the clock recovered from the PON
upstream port as the system clock source of the ONU.
b.
Run the
clock priority
command to configure the priority of the clock source.
huawei(config)#
clock source 0 0/0/1
Clock source set succeeded
huawei(config)#
clock priority system 0
2.
(Optional) Configure the system clock as the Tx clock of the E1 port.
NOTE
This step is required only when the base station is connected to the ONU through the E1 port. When the
base station is connected to the ONU through the ETH port, this step is not required. By default, it is the
system clock and cannot be modified.
a.
Run the
interface tdm
command to enter the E1 port configuration mode.
b.
Run the
tx clock
or
port
portid
udt system
command to configure the Tx clock of
the port as the system clock.
c.
Run the
display port state
command to query the Tx clock of the E1 port.
huawei(config)#
interface tdm 0/1
huawei(config-if-tdm-0/1)#
port 0 udt system
huawei(config-if-tdm-0/1)#
display port state 0
---------------------------------------
Port : 0
State : normal
Mode :
UDT
SmartAX MA5600T/MA5603T/MA5608T Multi-service
Access Module
Commissioning and Configuration Guide
14 FTTM Configuration (Base Station Access)
Issue 01 (2014-04-30)
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
1388
