3Com 3C13618 Command Reference Manual

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3Com 3C13618 Command Reference Manual Manual pdf 138 page image

Interface Management3.1.11 invert transmit-clockSyntaxinvert transmit-clockundo invert transmit-clockViewSerial interface viewParameterNoneDescriptionUsing the invert transmit-clock command, you can enable the invert transmit clockon the synchronous serial interface at the DTE side. Using the undo inverttransmit-clock command, you can disable the invert transmit-clock.By default, Invert transmit-clock disabled when the synchronous serial interface actsas the DTE.In some circumstances, the transmit clock on the serial interface of the DTE side isinverted to eliminate the delay for half a clock cycle. This command is only valid forsome clock signals provided by some special DCE. The transmit clock should not beinverted for normal applications.For related commands, see physical-mode, clock.Example# Invert the transmit clock on the DTE side serial interface.[3Com-Serial0]invert transmit-clock3.1.12 loopback (Serial Interface)Syntaxloopbackundo loopback27