PM5366-PI PMC-Sierra, Inc., PM5366-PI Datasheet - Page 230

• Manufacturer Part Number: PM5366-PI
• Description: HIGH DENSITY 84/63 CHANNEL VT/TU MAPPER AND M13 MULTIPLEXER
• Manufacturer: PMC-Sierra, Inc.

PRELIMINARY
DATASHEET
PMC-2010672
13.5 SONET/SDH Serial Alarm Port Timing
PROPRIETARY AND CONFIDENTIAL
The timing relationships of the signals related to the remote serial alarm port are
shown in Figure 58. The remote serial alarm port clocks, RADEASTCK and
RADWESTCK, are nominally 9.72 MHz clocks but can range from 1.344 MHz to
10 MHz. The remote serial alarm port frame pulses, RADEASTFP and
RADWESTFP, mark the first BIP-2 error bit (B1 in Figure 58) of the first tributary
(TU #1 of TUG2 #1, TUG3 #1) on RADEAST and RADWEST, respectively. The
frame pulses must be set high to mark every first BIP-2 error bit of the first
tributary. Tributaries on RADEAST and RADWEST are arranged in the order of
transmission of an STM-1 stream as defined in the references. I.e., TU #1 of
TUG2 #1 in TUG3 #1, TU#1 of TUG2 #1 in TUG3 #2, TU#1 of TUG2 #1 in TUG3
#3, TU#1 of TUG2 #2 in TUG3 #1, ... TU #1 of TUG2 #7 in TUG3 #3, TU #2 of
TUG2 #1 in TUG3 #1, ... TU #2 of TUG2 #7 in TUG3 #3, TU #3 of TUG2 #1 in
TUG3 #1, ... TU #4 of TUG2 #7 in TUG3 #3. Timeslot assignment on RADEAST
and RADWEST is unrelated to the configuration of the TUG2. Timeslots are
always reserved for four tributaries in every TUG2 even if it is configured for
tributaries with higher bandwidth than TU11, such as TU12. At timeslots devoted
to non-existent tributaries, for example, tributary 4 of a TUG2 configured for
TU12, RADEAST and RADWEST will be ignored.
Each tributary in the remote serial alarm port is allocated eight timeslots. The
first two timeslots, labeled B1 and B2 in Figure 58, reports the two possible BIP-2
errors in the tributary payload frame. An alarm contributing to remote defect
indications is reported in the third timeslot and is labeled D in Figure 58. The
timeslot labeled F report alarms contributing to remote failure indications. In
extended RDI mode, the D and F bits are considered as two bit codepoint and
will be reported on the RDI and RFI signals. Out of extended RDI mode, the D
and F bits are independent. The remaining four timeslots are unused and are
ignored.
3. Up to four devices may be directly connected to the same bus. Current
4. The INCLDC1J1V1 register bit may only be set if the LSTM[1:0] bit are
5. The Telecom bus becomes unconditionally high-impedance upon either a
consumption is minimized if all devices are the same (ie. all TEMAP-84s).
All devices must receive the same LAC1 signal.
“00”.
hardware or software reset. All necessary configuration and at least one
LAC1 pulse should precede the setting of the LADDOE or LAOE register
bits.
ISSUE 1
218
HIGH DENSITY 84/63 CHANNEL VT/TU MAPPER
AND M13 MULTIPLEXER
PM5366 TEMAP-84