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
Code : HDB3
Looptype : -
Timeslot : -
Clock : system
CRC4 : -
Signaling : -
ESF : -
Impedance : 120 Ohm
---------------------------------------
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 system
clock source.
huawei(config-if-tdm-0/1)#quit
huawei(config)#display clock source
--------------------------------------------------------------------
Index Type Source State Priority QL Selected
--------------------------------------------------------------------
0 line 0/0/1 Normal 0 --- YES
1 -- -/ -/ - --- --- NO ---
2 -- -/ -/ - --- --- NO ---
3 -- -/ -/ - --- --- NO ---
4 -- -/ -/ - --- --- NO ---
5 -- -/ -/ - --- --- NO ---
6 -- -/ -/ - --- --- NO ---
7 -- -/ -/ - --- --- NO ---
8 -- -/ -/ - --- --- NO ---
9 -- -/ -/ - --- --- NO ---
--------------------------------------------------------------------
----End
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.
1383
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