PM5364 pmc-sierra, PM5364 Datasheet - Page 266

• Manufacturer Part Number: PM5364
• Description: Tupp 2488 Assp Telecom Standard
• Manufacturer: pmc-sierra

Proprietary and Confidential to PMC-Sierra, Inc., and for its customers’ internal use.
Document No.: PMC-2011334, Issue 7
Figure 79 HRPOH Timeslots for STS-3c/VC4 Mapped with C4
VC4 with TUG-3
Figure 80 shows an STS-12/STM-4 data stream carrying four VC-4 payloads, and each VC-4
carries three TUG-3 payloads. Only the master timeslots contain valid path overhead bytes, and
the slave timeslot contain all zeros. The 4 sets of VC-4 path overhead can be output on any of
the 3 master timeslots. The valid VC-4 path overhead bytes are indicated by the HRPOHEN
signal. Note that the signal mapping is exactly the same as Figure 79.
The low-order path overhead bytes from tributaries mapped inside the TUG3s (TU11, TU12,
TU2, and TU3) can be extracted via the Tributary Path Overhead Port (TPOH). Please see
section 14.6.
Figure 80 HRPOH Timeslot for VC-4 mapped with TUG3
STS-12c/VC4-4c
Figure 81 shows an STS-12/STM-4 data stream carrying an STS-12c/VC-4-4c payload. The
VC-4-4c path overhead can be output on 1 of 3 master timeslots. The valid path overhead is
indicated by HRPOHEN.
TUPP™ 2488 ASSP Telecom Standard Product Data Sheet
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