EP 0676106 A1 19951011 - PERFORMANCE MONITORING AND TEST SYSTEM FOR A TELEPHONE NETWORK.
Title (en)
PERFORMANCE MONITORING AND TEST SYSTEM FOR A TELEPHONE NETWORK.
Title (de)
LEISTUNGS ÜBERWACHUNG UND TESTSYSTEM FÜR EIN TELEPHONNETZWERK.
Title (fr)
SYSTEME DE TEST ET DE CONTROLE DES PERFORMANCES POUR UN RESEAU TELEPHONIQUE.
Publication
Application
Priority
- US 9312362 W 19931217
- US 99488392 A 19921222
- US 15789993 A 19931123
- US 15790093 A 19931123
Abstract (en)
[origin: WO9415419A1] An access, monitor and test system (170) for a telephone network. The system (170) provides selective, and hitless, bit overwrite in any of the embedded channels, for example, DS1, DS0 and subrate, in a signal (134), for example, DS3. Multiple DS0 and subrate channels can be tested via the asynchronous time slot interchange (252) in conjunction with the recombiner (458) of the present invention. The present invention further includes a lookahead reframer (474) for framing to the DS3 signal (134). The present invention also includes a facilities data link (FDL) handler (254, 1068) for capturing the FDL channel data in every DS1 channel in a DS3 signal. A high speed bit-for-bit compare (470) is interfaced to a protect path to provide 1:1 fault protection in the system of the present invention. Full time performance monitoring on DS1 and DS3 signals is performed by a shared resource. The system of the present invention provides an integrated approach to synchronization measurement and relative synchronization, and also provides alarm correlation and hierarchical event filtering. A portion of the relative synchronization method is the auto-search reference select sequence (1168). A portion of the system for correlating performance monitoring and testing of a channel is the alarm correlation and filter process (1270).
IPC 1-7
IPC 8 full level
H04J 3/08 (2006.01); H04J 3/06 (2006.01); H04J 3/14 (2006.01); H04Q 11/04 (2006.01)
CPC (source: EP)
H04J 3/0605 (2013.01); H04J 3/0623 (2013.01); H04J 3/14 (2013.01); H04Q 11/0421 (2013.01)
Citation (search report)
See references of WO 9415419A1
Designated contracting state (EPC)
AT BE CH DE DK ES FR GB GR IE IT LI LU MC NL PT SE
DOCDB simple family (publication)
WO 9415419 A1 19940707; AT E265768 T1 20040515; DE 69333499 D1 20040603; DE 69333499 T2 20050504; EP 0676106 A1 19951011; EP 0912005 A2 19990428; EP 0912005 A3 20000719; EP 0912005 B1 20040428; JP 3478829 B2 20031215; JP H08505022 A 19960528
DOCDB simple family (application)
US 9312362 W 19931217; AT 98123441 T 19931217; DE 69333499 T 19931217; EP 94904496 A 19931217; EP 98123441 A 19931217; JP 51534094 A 19931217