
PM5317 SPECTRA-9953 Telecom Standard Product Data Sheet
Release
Proprietary and Confidential to PMC-Sierra, Inc., and for its customers’ internal use.
Document No.: PMC-2000741, Issue 5
103
RDI-P is declared when bit 5 of the G1 byte is set high for five or ten consecutive frames
(selectable by the PRDI10 bit in the configuration register). RDI-P is removed when bit 5 of the
G1 byte is set low for five or ten consecutive frames. ERDI-P is declared when the same 010,
100, 101, 110 or 111 pattern is detected in bits 5, 6 and 7 of the G1 byte for five or ten
consecutive frames (selectable by the PRDI10 bit in the configuration register). ERDI-P is
removed when the same 000, 001 or 011 pattern is detected in bits 5, 6 and 7 of the G1 byte for
five or ten consecutive frames.
14.9 SONET/SDH Alarm Reporting Controller (SARC)
The SARC receives all the section, line and path defects detected by the receive overhead
processors and, according to the user’s specific configuration, generates consequent action
indications.
Receive section alarm (RSALM) indication: RSALM is asserted when a OOF, LOF, LOS. AIS-
L, RDI-L, APSBF, TIU-S, TIM-S, SDBER or SFBER defect is detected in the receive data
stream. Configuration registers allow the user to remove any defect from the previous
enumeration.
Receive line AIS insertion (RLAISINS) indication: RLAISINS is asserted when a OOF, LOF,
LOS. AIS-L, RDI-L, APSBF, TIU-S, TIM-S, SDBER or SFBER defect is detected in the
receive data stream. Configuration register allow the user to enable/disable any defect from the
previous enumeration.
Transmit line RDI insertion (TLRDIINS) indication: TLRDIINS is asserted when a OOF, LOF,
LOS. AIS-L, RDI-L, APSBF, TIU-S, TIM-S, SDBER or SFBER defect is detected in the
receive data stream. Configuration register allow the user to enable/disable any defect from the
previous enumeration.
Receive path alarm (RPALM) indication: RPALM is asserted when a RSALM, MSRSALM
3
,
AIS-P, LOP-P, PLU-P. PLM-P, UNEQ-P, PDI-P, RDI-P, ERDI-P, TIU-P or TIM-P defect is
detected in the receive data stream. Configuration registers allow the user to enable/disable any
defect from the previous enumeration.
Receive path alarm insertion (RPAISINS) indication: RPAISINS is asserted when a RLAISINS,
MSRLAISINS
4
, AIS-P, LOP-P, PLU-P. PLM-P, UNEQ-P, PDI-P, RDI-P, ERDI-P, TIU-P or
TIM-P defect is detected in the receive data stream. Configuration registers allow the user to
enable/disable any defect from the previous enumeration.
3
MSRSALM is asserted by the master SARC when processing an STS-192/STM-64 data stream
to indicate a section alarm. This alarm is propagated to the slave SARCs.
4
MSRLAISINS is asserted by the master SARC when processing an STS-192/STM-64 data
stream to indicate a line alarm. This alarm is propagated to the slave SARCs.