STANDARD PRODUCT
PM5365 TEMAP
DATASHEET
PMC-1991148
ISSUE 3
HIGH DENSITY VT/TU MAPPER
AND M13 MULTIPLEXER
pointers are carried within the SBI structure in place of the V5 indicator and
payload signals (SDV5, SAV5, SDPL and SAPL).
Table 16 shows the bus structure for carrying T1, E1, TVT1.5, TVT2 and DS3
tributaries in a SDH STM-1 like format. Up to 84 T1s, 63 E1s, 84 TVT1.5s, 63
TVT2s or 3 DS3s 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 (SC1FP) occurs during the octet labeled C1 in Row 1 column 7.
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, or a DS3. SPE1 carries the T1s numbered 1,1 through 1,28,
E1s numbered 1,1 through 1,21 or DS3 number 1,1. SPE2 carries T1s
numbered 2,1 through 2,28, E1s numbered 2,1 through 2,21 or DS3 number 2,1.
SPE3 carries T1s numbered 3,1 through 3,28, E1s numbered 3,1 through 3,21
or DS3 number 3,1. TVT1.5s are numbered the same as T1 tributaries and
TVT2s are numbered the same as E1 tributaries. The most significant bit in all
formats is the first bit of transmission.
Proprietary and Confidential to PMC-Sierra, Inc. and for its Customers’ Internal Use
162
PMC [ PMC-SIERRA, INC ]
