PM5364 pmc-sierra, PM5364 Datasheet - Page 39

• 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
7
Description
The PM5364 TUPP 2488 SONET/SDH Tributary Unit Payload Processor for 2488.32 Mbit/s
Interfaces is a monolithic integrated circuit that implements a configurable, multi-channel,
payload processor that aligns and monitors performance of SONET virtual tributaries (VTs) or
SDH tributary units (TUs).
The TUPP 2488 integrates 4 x STS-12/STM-4 VT level payload processors in the ingress path.
On the line side, it provides 2 x ingress and egress STS-1/STM-0 granular time slot
interchanges. On the system side it provides 8 x ingress and egress STS-12 VT-level time
switches and an STS-192/STM-64 VT-level space switch (cross bar). The internal crossbar
allows for hair-pinning and OC-48 ADM. The TUPP 2488 supports 1:2 multicast for drop and
continue.
The TUPP 2488 architecture should be viewed as two separate switch fabrics – system side
(VT/TU level) and line side (STS-1). The line side and system side fabrics have independent
switching control. The TUPP 2488 provides a full or partial fabric depending on the application
it is used in.
In hair-pinning applications from line ingress to line egress, the system side of TUPP 2488
provides an internal VT granularity Time:Space:Time switch fabric. No separate time or space
stage switches are required on the system side.
In OC-48 ADM applications, the internal VT level time switches and crossbar can be used with
external time switches (e.g. SBS devices) on the system side to implement a VT granularity
Time:Space:Time switch and provide 2488.32 Mbit/s full-duplex switching.
In NxOC-48 ADM, VT level cross connect applications, the internal crossbar is bypassed. An
external crossbar (e.g. NSE device) and external time switches on the system side can be used
instead in conjunction with the internal VT level time switches.
The TUPP 2488 provides independent timeslot interchange blocks on the line side ingress and
egress interfaces to allow arbitrary arrangement of timeslots at STS1/STM-0 granularity. Time-
slot interchange blocks are independently provided for working and protect links. These blocks
can provide the time stage of a line side Time:Space:Time switch fabric using TBS and TSE
devices.
On the line side, the TUPP 2488 provides a 4 x 8-bit or 32-bit 77.76 MHz Telecom Bus
interface for direct connection to the SPECTRA 2488. Alternatively provides 4 redundant Serial
RASIO™ CML STS-12/STM-4 622.08 MHz SONET/SDH framed interfaces or 777.6 MHz
8B/10B encoded TelecomBus interfaces or one redundant Serial RASIO™ CML STS-48/STM-
16 2.488 GHz SONET/SDH framed interface.
On the system side, the TUPP 2488 provides eight redundant Serial RASIO™ CML 622.08
MHz SONET/SDH framed interfaces or 777.6 MHz 8B/10B encoded TelecomBus interfaces.
TUPP™ 2488 ASSP Telecom Standard Product Data Sheet
Released
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