Avaya a500 Guia Do Utilizador

sync Commands

11-8

Cajun A500 ATM Switch User Guide

The 

sync setsync

 command enables you to set the sync card parameters for the Cajun 

A500. After you enter the command, the system displays a set of options. Enter the 

parameters you want for each of the options and press  Return. The options are:

U Timing Reference Priorities
U External reference Type
U DS1 Framing Type
U Wait Time to Restore 
U OCN Port/Line TMG References 

sync setsync 

This command requires the following argument(s):

Timing Reference 

Priorities

Enter the timing reference priority. The clock reference with the 

highest priority is used to lock the timing. In case of failure, the next 

highest priority source is used. The valid range is 4 to 0 (4 = highest, 1 

= lowest, 0 = disabled). 

External Reference Type

Enter the external reference type. This refers to the type of signal 

present used for the external references. It can be either DS1 or E1. 

Note: 

These are standard communication terms.

ODS1 Framing Type

Enter the framing type. This option is based on the type selected for 

the external reference type. 

• DS1--> Can be either SF (superframe) or ESF (extended 

superframe). 

• E1 --> framing or no framing.

Wait Time to Restore

When a higher priority clock reference returns, this is the time to wait 

before restoring this clock source as the current reference. This wait 

time ensures the source is stable before using it as the clock source.

OCN Port/Line TMG 

References

The Primary and Secondary OC-N references are selected from any of 

the 32 ports on the Cajun A500.