Maintenance Object Repair Procedures
555-233-123
10-1898
Issue 4 May 2002
Misframe Alarm Inquiry Test (#145)
Misframe Alarm indicates that framing bits observed on a UDS1 Interface circuit
pack are in error. The Misframe Alarm Inquiry Test queries the total number of
misframes that have occurred on a DS1 Interface circuit pack since the last
inquiry.
When the DS1 Interface circuit pack detects a misframe error, it increments its
misframe counter by one. If the counter reaches a specified threshold (i.e., 17), a
MISFRAME-COUNT message is automatically sent to the switch maintenance
software. After the maintenance software receives the MISFRAME-COUNT
message, the Misframe Alarm Inquiry Test is initiated to collect the misframe
counts from the UDS1 Interface circuit pack.
When the threshold of misframes is reached, if the UDS1 Interface circuit pack is
supplying the system synchronization source, then a switching synchronization
source message is sent to the TDM Bus Clock. See TDM-BUS (TDM Bus)
Maintenance documentation for details. A Minor alarm against the UDS1 Interface
circuit pack is raised, but all trunks or ports of the UDS1 Interface circuit pack
remain in the in-service state.
Summary of Contents for Definity SI
Page 1: ...0DLQWHQDQFH IRU YD D 1 7 6HUYHU 6 Volumes 1 2 and 3 555 233 123 Issue 4 May 2002...
Page 62: ...Maintenance Architecture 555 233 123 1 26 Issue 4 May 2002...
Page 92: ...Management Terminals 555 233 123 3 26 Issue 4 May 2002...
Page 204: ...Routine Maintenance Procedures 555 233 123 5 100 Issue 4 May 2002...
Page 250: ...LED Interpretation 555 233 123 7 10 Issue 4 May 2002...
Page 2804: ...Maintenance Object Repair Procedures 555 233 123 10 2018 Issue 4 May 2002...