TMXF28155 Supermapper
155/51 Mbits/s SONET/SDH x28/x21 DS1/E1
Data Sheet
June 2002
17 TMUX Functional Description (continued)
17.5 Receive Direction (Receive Path from SONET Global/SDH)
All functions supported by the TMUX in the receive direction are summarized here:
■ Input clock monitoring and loss-of-signal monitoring
■ High-speed loopback
■ Frame alignment
■ Receive side frame sync output
■ B1 BIP-8 check
■ J0 monitor
■ Descrambler
■ F1 monitor
■ B2 BIP-8 check
■ APS (automatic protection switch) monitor
■ K2 monitor, AIS-L and RDI-L detect
■ M1 REI-L detect
■ Sync status monitor
■ Receive transport overhead access channel (RTOAC)
■ MSP 1 + 1 payload switch
■ Pointer interpreter
■ J1 monitor
■ B3 BIP-8 check
■ Signal label C2 byte monitor
■ RDI-P detect
■ REI-P detect
■ Path user byte F2 monitor
■ H4 multiframe indicator
■ Path user byte F3 monitor
■ K3 byte monitor
■ N1 tandem connection byte monitor
■ Signal degrade BER algorithm
■ Signal fail BER algorithm
■ Path overhead access channel (POAC) drop
■ AIS-P insertion and AUTO_AISO[1—3] generation
■ Receive side telecom bus interface
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Agere Systems Inc.
ETC [ ETC ]
