3Com MSR 50 manual E1 set frame-format, Undo e1 line-numberset clock, View CE3 interface view, 259

259

undo e1 line-numberset clock

View CE3 interface view

Parameter line-number: E1 line number in the range 1 to 16. master: Adopts the internal clock as the clock source. slave: Adopts the line clock as the clock source.

Description Use the e1 set clock command to configure clock source for an E1 line on the CE3 interface.

Use the undo e1 clock command to restore the default, that is, line clock.

When the CE3 interface is working in channelized mode, you can set separate clock for each E1 line on it.

Example # Use the internal clock as the clock source on the first E1 line on interface E3 2/0.

<Sysname> system-view

[Sysname] controller e3 2/0

[Sysname-E3 2/0] e1 1 set clock slave

e1 set frame-format

Syntax e1 line-numberset frame-format { crc4 no-crc4 }

undo e1 line-numberset frame-format

View CE3 interface view

Parameter line-number: E1 line number in the range 1 to 16. crc4: Sets the frame format to CRC4.

no-crc4: Sets the frame format to no-CRC4.

Description Use the e1 set frame-formatcommand to set framing format for an E1 line.

Use the undo e1 set frame-formatcommand to restore the default, that is, no-CRC4.

Configure this command only when the specified E1 line is working in framed format (which can be set using the undo e1 unframed command).

Related command: e1 unframed.

Example # Set the framing format to CRC4 for the first E1 line on interface E3 2/0.