Lucent Technologies FT-2000 OC-48 - Path-In-Line Architecture

Applications
2-28 Issue 8.0 July 2002
Figure 2-12. Path-In-Line Architecture
The path-in-line architecture is a self-healing network architecture that provides
end-to-end survivable DS1 and DS3 services. Figure 2-12 shows an OC-3
path-switched ring using part of the bandwidth of an OC-48 bidirectional
line-switched ring. The OC-3 interfaces can contain a mixture of VT1.5 and STS-1
channels for all types of services. The capability to mix services, instead of having
application-specific assignments for STS-1 tributaries, conserves the bandwidth
of OC-3 access rings.
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FT-2000 OC-48 Add/Drop-Rings Terminal (Release 6 and later
)
nc-ft2000-03
3
OC-3
Path-Switched
Ring
OC-48
Line-Switched
Ring
The grey shading indicates the extent of OC-3 ring.
OC-3
Path-Switched
Ring
0x1
Connection
0x1
Connection
0x1
Connection
0x1
Connection
DDM-2000
DDM-2000
DDM-2000
FT-2000*
1
FT-2000*
5
FT-2000*
2
FT-2000
4
FT-2000
3
DDM-2000 DDM-2000
DDM-2000