Cisco ONS 15454 DWDM - Page 188

4-24
Cisco ONS 15454 DWDM Reference Manual, R8.5
78-18343-02
Chapter 4 Optical Amplifier Cards
4.7.2 OPT-AMP-L Block Diagrams
Figure 4-19 OPT-AMP-L Block Diagram
Figure 4-20 shows a block diagram of how the OPT-AMP-L optical module functions.
Figure 4-20 OPT-AMP-L Optical Module Functional Block Diagram
Optical
module
Monitor Line RX
Line RX
DC RX
Processor
Line TX
DC TX
COM TX
COM RX
OSC TX
Monitor Line TX
OSC RX
FPGA
For SCL Bus
management
SCL Bus
TCCi M
SCL Bus
TCCi P
DC/DC
Power supply
Input filters
BAT A&B
180932
MON TX
OSC RX
OSC TX
COM RX
COM TX
MON RX
LINE TX
LINE RX
P1
P
Physical photodiode
Variable optical attenuator
P2 P3
P6
P4
DC TX DC RX
External Mid-Stage
Loss
OSC
Add
OSC
Drop
P7
P5
Transmit Section
Receive Section
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