SXT6051 STM-1/0 SDH Overhead Terminator
Figure 6:Terminal Protection Mode Data Flow
SXT 6051 Receive Section Slave channel
Receive
STM -0
Slave
MST/MSP
Multiplexer
section
RST
Regenerator
Section
B3ZS
Decoder
MSP Interface
MSP Interface
Receive
STM -0
Main
SXT 6251
21 E1 Mapper
RST
Regenerator
Section
MST
Multiplexer
section
MSP
Protection
switch
MSA
Pointer
Recovery
HPT
High Order
Path Section
B3ZS
Decoder
Re-
Tim ing
SXT 6051 Receive Section Main Channel
SXT 6051Transm it Section Slave Channel
RST
R egenerator
Section
M ST
M ultiplexer
Section
B3ZS
Encoder
Transmit STM-0 Slave
MSP Interface
MSP Interface
SXT 6251
21 E1 M apper
HPT
H igh O rder
M ST
M ultiplexer
Section
M SA
RST
R egenerator
Section
Transmit STM-0 Main
B3ZS
Encoder
Pointer
Path Section
Processing
SXT 6051 Transmit Section M ain Channel
27
LevelOne [ LEVEL ONE ]
