Technical data

TraverseEdge 2020 Applications and Engineering Guide, Chapter 3: System Applications
Release 5.0.x Turin Networks Page 3-61
signals.
Figure 3-55 Point-to-Point DWDM Link Schematic (2x for Protection)
Most service provider networks require fully protected transport systems. To accomplish this, two Mux fil-
ters and two Demux filters are deployed at each end of diversely routed fiber pairs, effectively doubling the
equipment and fibers shown in Figure 3-55. In this configuration the VLX1010s provide multi-wavelength
access to diverse fiber runs while the TE-2020 supports standard SONET automatic protection switching
(1+1 or UPSR) for failure recovery.
Figure 3-56 shows an example of the equipment stack-up to realize one end of the protected point-to-point
networks. The top two 1RU chassis are two VLX1010s each equipped with one 8-Channel DWDM Mux
Base filter tray and one 8-Channel DWDM Demux Base filter tray. Below the VLX1010s are a number of
TE-2020s equipped with some number of OC-48 and or OC-192 DWDM (ITU) PLMs. While there are no
tributary PLMs or shelves (e.g. ETS1s, OTS2s, or ETS2s) shown, the use of the VLX1010 DWDM trays
in no way constrains the TE-2020 configurations. All configurations shown in the TE-2020 Applications &
Engineering document are supported.