Invert rxclock – ADTRAN 1000R Series User Manual

Page 680

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Command Reference Guide

Serial Interface Configuration Command Set

61200510L1-35E

Copyright © 2005 ADTRAN

680

invert rxclock

Use the invert rxclock command to configure the serial interface to expect an inverted receive clock
(found in the received data stream). Use the no form of this command to return to the default value.

Syntax Description

No subcommands.

Default Values

By default, the serial interface does not expect an inverted receive clock (rxclock).

Applicable Platforms

This command applies to the NetVanta 1000R, 3000, and 4000 Series and Total Access 900 Series units.

Command History

Release 1.1

Command was introduced.

Functional Notes

If the serial interface cable is long, causing a phase shift in the data, the transmit clock can be inverted
using the invert txclock command (see

invert txclock

on page 681

). This switches the phase of the clock,

which compensates for a long cable. If the transmit clock of the connected device is inverted, use the
invert rxclock command to configure the receiving interface appropriately.

Usage Examples

The following example configures the serial interface to invert receive clock:

(config)#interface serial 1/1

(config-ser 1/1)#invert rxclock

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