STANDARD PRODUCT
PM5365 TEMAP
DATASHEET
PMC-1991148
ISSUE 3
HIGH DENSITY VT/TU MAPPER
AND M13 MULTIPLEXER
Figure 49
- Output Bus Timing - Locked AU4 VC Case
LREFCLK
LAC1
••••
LAOE
LAC1J1V1
LAPL
LADATA[7:0]
A2 C1 X
X
J1
R
R
R
R
R
R V1
H4
R
R
R
R
R
R V5
Z6
National
Last H4 byte
in tributary
multiframe
bytes
Fixed
Stuff
Columns
Implicit location
of VC4 J1 byte
First R column of TUG3 #1
V1 byte TU #1, TUG2 #1, TUG3 #1
V5 byte TU #1,
TUG2 #1, TUG3 #1
Z6 byte TU #1,
TUG2 #1, TUG3 #3
13.5 SONET/SDH Serial Alarm Port Timing
The timing relationships of the signals related to the remote serial alarm port are
shown in Figure 50. 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 50) 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.
Proprietary and Confidential to PMC-Sierra, Inc. and for its Customers’ Internal Use
196
PMC [ PMC-SIERRA, INC ]
