3com MSR 20-20 참조 매뉴얼

C

HAPTER

 11: F

UNDAMENTAL

 S

ERIAL

 I

NTERFACE

 C

ONFIGURATION

 C

OMMANDS

Use the invert receive-clock command to invert the receive-clock signal on the 
DTE-side synchronous serial interface.

Use the undo invert transmit-clock command to restore the default.

By default, receive-clock signal inversion is disabled on DTE-side synchronous serial 
interfaces.

Sometimes, you may need to invert the receive-clock signal on a DTE-side serial 
interface to eliminate the half clock-period delay on the line. This command is 
necessary only for some special DCE devices. In common applications, clock must 
not be inverted.

physical-mode, invert transmit-clock, clock (serial interface view).

# Invert the receive-clock on DTE-side synchronous serial interface 2/0.

<Sysname> system-view

[Sysname] interface serial 2/0

[Sysname-Serial1/0] invert receive-clock 

Serial interface view

None

Use the invert transmit-clock command to invert the transmit-clock signal on 
the DTE-side synchronous serial interface.

Use the undo invert transmit-clock command to restore the default.

By default, transmit-clock signal inversion is disabled on DTE-side synchronous 
serial interfaces.

Sometimes, you may need to invert the receive-clock signal on a DTE-side serial 
interface to eliminate the half clock-period delay on the line. This command is 
necessary only for some special DCE devices. In common applications, clock must 
not be inverted.

physical-mode, invert receive-clock, clock (serial interface view).

# Invert the transmit-clock on DTE-side synchronous serial interface 2/0.

<Sysname> system-view

[Sysname] interface serial 2/0

[Sysname-Serial1/0] invert transmit-clock