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Cisco ONS 15454 DWDM Reference Manual, R8.5
78-18343-02
Chapter 1      Shelf Assembly Hardware
1.5    Typical DWDM Rack Layouts
Figure 1-16 Y-Cable Protection Port Label
1.5 Typical DWDM Rack Layouts
Typical dense wavelength division multiplexing (DWDM) applications might include:
 • 3 ONS 15454 shelves
 • 1 Dispersion Compensating Unit (DCU)
 • 7 patch panels (or fiber-storage trays), in either 1rack unit (RU)or 2 RU sizes
 –
1RU: Fiber-storage tray and 64-channel patch panel
 –
2 RU: Y-cable patch panel, 64-channel patch panel, 80-channel patch panel, and mesh patch 
panel (4 or 8 degree)
Or, alternatively:
 • 3 ONS 15454 shelves
 • 2 DCUs
 • 6 standard patch-panel trays (or fiber-storage trays), or 3 deep patch-panel trays, in either 1 RU or 
2 RU sizes
 –
1RU: Fiber-storage tray and 64-channel patch panel
 –
2 RU: Y-cable patch panel, 64-channel patch panel, 80-channel patch panel, and mesh patch 
panel (4 or 8 degree)
See Figure 1-17 for a typical rack layout. 
Note Use the rack layout generated by Cisco TransportPlanner to determine your exact shelf layout.
Client TX
Client RX
TXP W TX
TXP W RX TXP W RX TXP W RX TXP W RXTXP W RX TXP W RX TXP W RX TXP W RX
TXP P RX
TXP P TX TXP P TX TXP P TX TXP P TX TXP P TX TXP P TX TXP P TX TXP P TX
TXP P RX TXP P RX TXP P RX TXP P RX TXP P RX TXP P RX TXP P RX
TXP W TX TXP W TX TXP W TX TXP W TX TXP W TX TXP W TX TXP W TX
Client RX Client RX Client RX Client RX Client RX Client RX Client RX
Client TX Client TX Client TX Client TX Client TX Client TX Client TX
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