Atm-Sync (Atm Synchronization) - Avaya S8700 Maintenance Manual

For multi-connect configurations

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Table of Contents

Maintenance-Object Repair Procedures

ATM-SYNC (ATM Synchronization)

(in Alarm Log)

This section discusses intra-switch synchronization maintenance and the

hardware and software components that provide a common reference frequency

for reliable digital communications among the G3r system, the ATM switch, and

other PBXs, Central Offices (COs) or customer-premises equipment (CPE).

Circuit packs involved in synchronization include:

TN768 or TN780 Tone-Clock circuit packs are not compatible with ATM EIs.

TN2312 IPSI circuit pack's Tone-Clock circuit

TN2182 Tone-Clock

TN722, TN464, and TN767 DS1 Interfaces (all suffixes)

TN2305/6 ATM Expansion Interface (multimode fiber)

Synchronization is achieved between the S8700 Media Server Multi-Connect IPSI

and the Expansion Port Networks (EPNs) through the ATM port-network

connectivity (ATM PNC) between the networks. Depending on the network's

synchronization plan and the status of synchronization sources, the system timing

reference may be:

The clock circuit pack on the ATM switch

A DS1 or UDS1 interface circuit pack-tapped T1 input signal connected to

the ATM switch clock circuit

An OC-3 interface circuit pack on the ATM switch

Stratum 4 synchronization extracts timing information directly from

A DS1 or UDS1 reference

An OC3 reference

The ATM switch clock

For further information about synchronization including network synchronization,

refer to AT&T Network and Data Connectivity.

Issue 1 May 2002

Initial Command to Run

display errors

test synchronization

Full Name of MO

ATM Synchronization