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

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Views
T1-F interface view
Predefined user roles
network-admin
Parameters
ami: Specifies the AMI line code format.
b8zs: Specifies the B8ZS line code format.
Usage guidelines
A T1-F interface must use the same line code format as its remote end. For the interface to operate
correctly, configure the ft1 data-coding inverted command on it if the AMI format is used.
Examples
# Set the line code format of T1-F interface Serial 2/1/0 to AMI.
<Sysname> system-view
[Sysname] interface serial 2/1/0
[Sysname-Serial2/1/0] ft1 code ami
Related commands
ft1 data-coding
ft1 data-coding
Use ft1 data-coding to enable or disable user data inversion for a T1-F interface.
Use undo ft1 data-coding to restore the default.
Syntax
ft1 data-coding { inverted | normal }
undo ft1 data-coding
Default
Data inversion is disabled.
Views
T1-F interface view
Predefined user roles
network-admin
Parameters
inverted: Enables user data inversion.
normal: Disables user data inversion.
Usage guidelines
To prevent 7e in valid data from being mistaken for padding characters, HDLC inserts a bit 0 after every
five bit 1 in the data stream. In data inversion, every bit is changed into its opposite value. (Bit 1 is
changed into bit 0, and bit 0 changed into bit 1.) After the inversion, at least one bit 1 is present in every
eight consecutive bits.