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Cisco ONS 15454 DWDM Reference Manual, R8.5
78-18343-02
Chapter 4      Optical Amplifier Cards
4.3.2    OPT-PRE Block Diagrams
Figure 4-6 shows the OPT-PRE amplifier card faceplate.
Figure 4-6 OPT-PRE Faceplate 
4.3.2 OPT-PRE Block Diagrams
Figure 4-7 shows a simplified block diagram of the OPT-PRE card’s features.
OPT
PRE
FAIL
ACT
SF
MON
RX
COM
TX
RX
DC
TX
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