218CHAPTER 13: FUNDAMENTAL CT1/PRI INTERFACE CONFIGURATION COMMANDS

<Sysname> system-view

[Sysname] controller t1 2/0

[Sysname-T1 2/0]

crc

Syntax

crc { 16 32 none }

 

undo crc

View

Synchronous serial interface view

Parameter

16: Adopts 16-bit CRC.

 

32: Adopts 32-bit CRC.

 

none: Disables CRC.

Description

Use the crc command to configure CRC mode for a synchronous serial interface

 

formed on a CE1/PRI interface.

 

Use the undo crc command to restore the default, that is, 16-bit CRC.

Example

# Apply 32-bit CRC to a serial interface formed on interface CT1 interface 2/0.

 

<Sysname> system-view

 

[Sysname] controller t1 2/0

 

[Sysname-T1 2/0] channel-set 1 timeslot-list 2-6

 

[Sysname-T1 2/0] quit

 

[Sysname] interface serial 2/0:1

 

[Sysname-Serial2/0:1] crc 32

data-coding (CT1/PRI interface view)

Syntax

data-coding { inverted normal }

 

undo data-coding

View

CT1/PRI interface view

Parameter

inverted: Enables user data inversion.

 

normal: Disables user data inversion.

Description

Use the data-coding normal command to disable user data inversion on the

 

CT1/PRI interface.

 

Use the data-coding inverted command to enable user data inversion on the

 

CT1/PRI interface.

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3Com MSR 30, MSR 50 manual Data-coding CT1/PRI interface view, Data-coding inverted normal, Undo data-coding