3com S7906E Guide De Référence

 

1-4 

Any view 

2: System level 

interface-type: Port type, which can be OLT or ONU.  

interface-number: OLT/ONU port number. 

 

 

As for the interface-number argument, the format of LPU slot number/sub-LPU slot number/OLT 

port number is used for OLT ports; and the format of LPU slot number/sub-LPU slot number/OLT 

port number:ONU port number is used for ONU ports.  

 

To create an ONU port, use the using onu command in OLT port view.  

 

Use the display epon-capability interface command to display OLT or ONU capability information.  

 

If interface-type interface-number identifies an OLT port, the following information about the OLT is 

displayed: automatic gain control (AGC) time and clock data recovery (CDR) time.  

 

If interface-type interface-number identifies an ONU port, the following information about the ONU 

is displayed: laser on time, laser off time, and grant FIFO deep.  

 

 

Before displaying the version information about an ONU, make sure the ONU is bound and is in Up 

state (that is, the ONU is online). Refer to the bind onuid command for more.  

 

Before displaying the version information about an OLT, make sure the OLT is in Up state.  

 

 

Because location distance and external conditions of each ONU are different, the received signal 

maybe strong or weak. AGC time is the time used by the OLT to automatically restore the strength 

of the received signal to an acceptable level.  

 

CDR time is the time used by the OLT to synchronize the phase and frequency of received signals. 

 

ONU laser on time is the interval between when the ONU laser is turned on and when it becomes 

stable. ONU laser off time is the interval between when the ONU laser is turned off and when it 

becomes stable.