Signal Management Sub-System; Sdh Payload Processing Blocks; Figure 39. Sdh Port Board Implementation And Corresponding Itu-T G.783 Functional Model - Alcatel 1850 TSS-320 Technical Handbook

3.4 SIGNAL MANAGEMENT SUB-SYSTEM

3.4.1 SDH payload processing blocks

3.4.1.1 SDH port card
The SDH port card provides processing capabilities of STM-1 up to STM-64 signals. The HO payload
processing is performed at port card level, while connection functions are collapsed into one single entity,
placed in the matrix board.
The functional block diagram of a generic port board of 1850 TSS-320 equipment is reported in Figure
39. on page 71 with its corresponding atomic function representation.
HVC
RX
MSA
Sk
MST
Sk
TTF
RST
Sk
SPI
Sk
STM-N port
board

Figure 39. SDH Port board implementation and corresponding ITU-T G.783 functional model.

It has to be noted that MSn switch (MSnPC block) is performed in the matrix board: the dotted MSnPC
block in figure shows the correct placement for that function.
The criteria detected by MSn/MSnP function are in band signaled to the matrix.
Moreover, also the HVC functions are implemented before MSn switch. The information collected by HVC
functions are in band signaled to the matrix board where a virtual image of the HVC functions resides (see
Sec. 3.4.1.2.2 on page 77 for details).
Technical Handbook Common
Functional Description
HVC
TX
MSA
So
MST
So
RST
So
SPI
So
In band
SnP SnP
SnPC
Sn/SnP Sn/SnP
SnS
Sn/SnD
SnD
Snm SnS
Sn/SnD
SnDm SnD
MSn /Sn
MSnP
MSnPC
MSn /MSnP
MSn
TTF
RSn /MSn
RSn
OSn /RSn
OSn
STM-N port
board
8DG 07734 AAAA Edition 01
SnS
Sn/SnD
SnD
SnS Snm
Sn/SnD
SnD SnDm
MSn /Sn
MSnP
MSn /MSnP
MSn
RSn /MSn
RSn
OSn /RSn
OSn
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