Cisco ONS 15454 DWDM - Figure 10-23 Cisco Transportplanner Installation Parameters; System Gain Tilt Compensation with ROADM Nodes

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Cisco ONS 15454 DWDM Reference Manual, R8.5
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Chapter 10 Network Reference
10.8.2 System Level Gain Tilt Control
Figure 10-23 Cisco TransportPlanner Installation Parameters
10.8.2.2 System Gain Tilt Compensation With ROADM Nodes
When a ROADM node is present in the network, as shown in Figure 10-24, a per-channel dynamic gain
equalization can be performed. Both gain tilt and gain ripple are completely compensated using the
following techniques:
• Implementing the per-channel VOAs present inside the 32WSS card
• Operating in Power Control Mode with the specific power setpoint designed by
Cisco TransportPlanner