37
DarkStar User Guide
3: Software
www.xkl.com
FIGURE 3.3
Logical Diagram of an Optical Networking System with EDFAs
* When a DXM or DSM is looped
back on itself, an attenuator is
required to reduce output power.
This will prevent the receivers
fro
m
getting da
m
aged.
OPTIONAL
T
x
T
x
T
x
T
x
T
x
MUX
FIXED
ATTENUATOR
EDFA
WEST 1
R
x
R
x
R
x
R
x
R
x
DEMUX
FIXED
ATTENUATOR
EDFA
WEST 0
TRANSMIT
TERS
RECEIVERS
DISPERSION
COMPENSATION
MODULE