PM5366-PI PMC-Sierra, Inc., PM5366-PI Datasheet - Page 187

• 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
PROPRIETARY AND CONFIDENTIAL
SONET/SDH tributary pointers are carried within the SBI structure in place of the
V5 indicator and payload signals (SDV5, SAV5, SDPL and SAPL).
Table 20 shows the bus structure for carrying T1, E1, TVT1.5, TVT2, DS3 and
E3 tributaries in a SDH STM-1 like format. Up to 84 T1s, 63 E1s, 84 TVT1.5s,
63 TVT2s, 3 DS3s or 3 E3s are carried within the octets labeled SPE1, SPE2
and SPE3 in columns 16-270. All other octets are unused and are of fixed
position. The frame signal (SAC1FP or SDC1FP) occurs during the octet labeled
C1 in Row 1 column 7. The Add and Drop buses have independent frame
signals to allow for arbitrary alignment of the two buses.
Table 20 represents a 19.44 Mbit/s signal. The structure is presented on a
77.76 MHz bus by byte interleaving it with three other like structures.
The multiplexed links are separated into three Synchronous Payload Envelopes
called SPE1, SPE2 and SPE3. Each envelope carries up to 28 T1s, 21 E1, 28
TVT1.5s, 21 TVT2s, a DS3 or an E3. SPE1 carries the T1s numbered 1,1
through 1,28, E1s numbered 1,1 through 1,21, DS3 number 1,1 or E3 number
1,1. SPE2 carries T1s numbered 2,1 through 2,28, E1s numbered 2,1 through
2,21, DS3 number 2,1 or E3 number 2,1. SPE3 carries T1s numbered 3,1
through 3,28, E1s numbered 3,1 through 3,21, DS3 number 3,1 or E3 number
3,1. TVT1.5s are numbered the same as T1 tributaries and TVT2s are numbered
the same as E1 tributaries.
ISSUE 1
175
HIGH DENSITY 84/63 CHANNEL VT/TU MAPPER
AND M13 MULTIPLEXER
PM5366 TEMAP-84