9-16
Cisco ONS 15454 DWDM Reference Manual, R8.5
78-18343-02
Chapter 9 Node Reference
9.1.6 Line Amplifier Node
Figure 9-15 Anti-ASE Node Channel Flow Example
9.1.6 Line Amplifier Node
A line amplifier node is a single ONS 15454 node that is used to amplify the optical signal in long spans.
The line amplifier node can be equipped with one of the following sets of cards:
• Two OPT-PRE cards, two OPT-BST cards, and two OSCM cards
• Two OPT-PRE cards and two OSC-CSM cards
• Two OPT-AMP-17-C cards and two OSCM cards
Attenuators might also be required between each preamplifier and OPT-BST amplifier to match the
optical input power value and to maintain the amplifier gain tilt value.
Two OSCM cards are connected to the OPT-BST cards to multiplex the OSC signal with the pass-though
channels. If the node does not contain an OPT-BST card, OSC-CSM cards must be installed instead of
OSCM cards. Figure 9-16 shows an example of a line amplifier node configuration using OPT-BST,
OPT-PRE, and OSCM cards.
4-ch
demux
4MD-xx.x
Line
Express path open
Line
96429
DCU
DCU
OSCM
TCC
TCC2
OSCM
AIC-I
B1 B1Ch Ch
4-ch
mux
4-ch
demux
4MD-xx.x
4-ch
mux
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