Specifications

4-4
Cisco ONS 15530 Planning Guide
OL-7708-01
Chapter 4 Optical Loss Budgets
Optical Loss for Transponder Line Cards
Figure 4-1 Elements of Optical Loss in a Minimal Configuration
For examples of optical loss budget calculations, see the shelf configurations described in Chapter 6,
“Example Shelf Configurations and Topologies.”
Optical Loss for Transponder Line Cards
In both the receive and transmit directions, splitter transponder line cards attenuate the ITU signal
significantly more than the nonsplitter transponder line cards.
Table 4-2 shows the optical loss for the splitter and nonsplitter transponder line cards supported by the
Cisco ONS 15530 in the transmit and receive directions.
77671
Line card
transmit loss
OADM module
add loss
Fiber loss
Pass through loss
(if needed)
PSM loss
(if needed)
OADM module
drop loss
Tap monitor or
attenuator loss
(if needed)
Line card
receive loss
Total loss