Datasheet

Command Reference
PA-E3 and PA-2E3 Serial Port Adapter 13
scramble
To enable scrambling of the payload on the PA-E3 port adapter, use the scramble interface
configuration command. To disable scrambling, use the no form of this command.
scramble
no scramble
Syntax Description
This command has no keywords and arguments.
Default
Scrambling is disabled.
Command Mode
Interface configuration
Usage Guidelines
This command first appeared in Cisco IOS Release 11.1 CA.
E3 scrambling is used to assist clock recovery on the receiving end.
Scrambling can prevent some bit patterns from being mistakenly interpreted as alarms by switches
placed between the DSUs.
The local interface configuration must match the remote interface configuration. For example, if you
enable scrambling on the local port, you must also do the same on the remote port.
To verify that scramble is configured on the interface, use the show controllers serial EXEC
command.
Example
The following example enables scrambling on the PA-E3 port adapter in slot 1, port adapter slot 0,
interface 0:
interface serial 1/0/0
scramble
Related Command
show controllers serial