R0106-HP MSR Router Series Interface Command Reference(V7)

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Parameters
master: Sets the clock mode to master.
slave: Sets the clock mode to slave.
Usage guidelines
When the clock mode of an E1-F interface is master, it uses the internal clock source.
When the clock mode of an E1-F interface is slave, it uses the line clock source.
Set the clock mode for an E1-F interface as follows:
• When the E1-F interface is operating in DCE mode, set its clock mode to master.
• When the E1-F interface is operating in DTE mode, set its clock mode to slave.
Examples
# Set the clock mode to master for E1-F interface Serial 2/1/0.
<Sysname> system-view
[Sysname] interface serial 2/1/0
[Sysname-Serial2/1/0] fe1 clock master
Related commands
clock-change auto
fe1 code
Use fe1 code to set the line code format for an E1-F interface.
Use undo fe1 code to restore the default.
Syntax
fe1 code { ami | hdb3 }
undo fe1 code
Default
The line code format is HDB3 for the E1-F interface.
Views
E1-F interface view
Predefined user roles
network-admin
Parameters
ami: Specifies the AMI line code format.
hdb3: Specifies the HDB3 line code format.
Usage guidelines
An E1-F interface must use the same line code format as its remote end. For the interface to operate
correctly, configure the fe1 data-coding inverted command on it if the AMI format is used.
Examples
# Set the line code format of E1-F interface Serial 2/1/0 to AMI.
<Sysname> system-view