PM5366-PI datasheet(187/267 Pages) PMC

187 / 267 page

PRELIMINARY

PM5366 TEMAP-84

DATASHEET

PMC-2010672

ISSUE 1

HIGH DENSITY 84/63 CHANNEL VT/TU MAPPER

AND M13 MULTIPLEXER

PROPRIETARY AND CONFIDENTIAL

175

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.

PM5366-PI bảng dữ liệu(PDF) 187 Page - PMC-Sierra, Inc