R3102-R3103-HP 6600/HSR6600 Routers Interface Command Reference

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Usage guidelines
In most cases, a synchronous serial interface uses 0x7E to identify the idle state of the line. You may need
to set the line idle code to 0xFF however to interoperate with devices that use 0xFF (high level of all ones)
as line idle code.
Examples
# Set the line idle code of synchronous serial interface 1/0/0 to 0xFF.
<Sysname> system-view
[Sysname] interface serial 1/0/0
[Sysname-Serial1/0/0] idle-mark
invert receive-clock
Use invert receive-clock to invert the receive-clock signal on the DTE-side synchronous serial interface.
Use undo invert receive-clock to restore the default.
Syntax
invert receive-clock
undo invert receive-clock
Default
Receive-clock signal inversion is disabled on DTE-side synchronous serial interfaces.
Views
Synchronous serial interface view
Default command level
2: System level
Usage guidelines
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, do not invert the clock.
Examples
# Invert the receive-clock on DTE-side synchronous serial interface 1/0/0.
<Sysname> system-view
[Sysname] interface serial 1/0/0
[Sysname-Serial1/0/0] invert receive-clock
Related commands
• invert transmit-clock
• clock
invert transmit-clock
Use invert transmit-clock to invert the transmit-clock signal on the DTE-side synchronous serial interface.
Use undo invert transmit-clock to restore the default.