OptiX OSN 3500 TM - SD
2-1
2
Board
2.1
Type
With the cross-connect matrix unit as core, the OptiX OSN 3500 consists of interface
unit, SDH cross-connect matrix unit, synchronous timing unit, SCC unit, overhead
processing unit and auxiliary interface unit. The system architecture of the OptiX OSN
3500 is shown in Figure 2-1, and its functions and subordinate boards of respective
units are shown in Table 2-1.
λ
λ
East
SDH interface
unit (STM-1/4/
16/64)
SDH interface
unit (STM-1/4/
16/64)
SDH cross-connect matrix and
synchronous timing unit (higher-order/
lower-order: 35G/5G and 60G/5G)
SCC unit
and
overhead
processing
unit
PDH
interface
unit (E1/
T1/E3/
T3/E4)
Ethernet
interface
unti (10/
100/
1000M)
Auxiliary
interface
unit
West
Figure 2-1
System architecture of OptiX OSN 3500