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

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Parameters
nrz: Sets the digital signal coding format to nonreturn to zero (NRZ).
nrzi: Sets the digital signal coding format to nonreturn to zero inverted (NRZI).
Examples
# Set the digital signal coding format to NRZI on Serial 2/1/0.
<Sysname> system-view
[Sysname] interface serial 2/1/0
[Sysname-Serial2/1/0] code nrzi
crc
Use crc to set the CRC mode for a synchronous serial interface.
Use undo crc to restore the default.
Syntax
crc { 16 | 32 | none }
undo crc
Default
16-bit CRC is adopted.
Views
Synchronous serial interface view
Predefined user roles
network-admin
Parameters
16: Specifies 16-bit CRC.
32: Specifies 32-bit CRC.
none: Disables CRC.
Examples
# Configure Serial 2/1/0 to adopt 32-bit CRC.
<Sysname> system-view
[Sysname] interface serial 2/1/0
[Sysname-Serial2/1/0] crc 32
detect dcd
Use detect dcd to enable data carrier detection (DCD) on a serial interface.
Use undo detect dcd to disable DCD on a serial interface.
Syntax
detect dcd
undo detect dcd