Lucent Technologies WaveStar OLS 40G, Руководство по установке

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2-8
Issue 1.0 March 2001
365-575-389
Installation Manual
System Installation Planning
WaveStar OLS 40G Basics (Continued)
Release 1 and 2
Network
Architectures With Releases 1 and 2, the OLS is only a point-to-point system. An OLS can be
deployed on a single fiber span to relieve a fiber blockage (Figure 2-8) or can be
deployed between any or all nodes of a ring (Figure 2-9).
Figure 2-8. Clearing Fiber Congestion
Note that when multiple Optical Line Systems are deployed between different
nodes of a ring, the systems are independent and cannot communicate between
each other. As an OLS only exists between the SONET nodes, an entirely
different OLS will exist between the other SONET nodes. The OLS end terminals
which are co-located in the same central office may be connected with telemetry
feed-through, forming an effective DCC ring.
(Continued on next page)
OC-48 A1 OC-48 A2 OC-48 A3
OC-48 B1 OC-48 B2
OC-48 B4
OC-48 A5
OC-48 C1
OC-48 D1
OLS
ET
OLS
RPTR
OLS
ET
OC-48 B3
OC-48 A4
OC-48 C2
OC-48 D2
OC-48 C5 OC-48 C4 OC-48 C3
OC-48 D4 OC-48 D3
Central Office 1 Central Office 2
Ring A
Ring B
Ring D
Ring C