Mesh Patch Panels And Shelf Layouts - Cisco ONS 15454 DWDM Reference Manual

9.4.3 Mesh Patch Panels and Shelf Layouts

topologies of up to eight degrees can be created. The four-degree patch panel contains four 1x4 optical
splitters, and the eight-degree patch panel contains eight 1x8 splitters. Each mesh patch panel contains
a 2x8 splitter that is used for the test access transmit and receive ports.
diagram for the four-degree patch panel.
Figure 9-27
LC connector
MPO connector
At the mesh patch panel, the signal is split into four signals (if four-degree patch panel is used) or eight
signals (if an eight-degree patch panel is used).
patch panel. 40-WXC-C cards connect to the four-degree patch panel at the EXP TX and COM RX ports.
Cisco ONS 15454 DWDM Reference Manual, R8.5
9-36
Four-Degree Patch Panel Block Diagram
COM RX
from all
directions
Test
Access
TX Ports
Test Access
RX Port
#4
1x4
splitters
2x4
splitter
Figure 9-28 shows the signal flow at the four-degree
Chapter 9 Node Reference
Figure 9-27 shows a block
EXP TX
to all
directions
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