Demand test descriptions and error codes - Avaya Support

Communication Manager Maintenance Object Repair Procedures
ATM-SYNC (ATM Synchronization)
S8700-series Fiber-PNC
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 system, the ATM switch, and other PBXs, Central Offices (COs) or
customer-premises equipment (CPE). Circuit packs involved in synchronization include:
Note: TN768
MO Name in Log Alarm Level Initial Command to Run Full Name of MO
ATM-SYNC MIN display errors ATM Synchronization
Note:
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-series Server IPSI and the port networks
(PNs) 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
WRN test synchronization
● The ATM switch clock
For further information about synchronization including network synchronization, refer to
DEFINITY® Communications System Network and Data Connectivity, 555-025-201.
178 Maintenance Alarms for Communication Manager, Media Gateways and Servers