Cisco ONS 15454 DWDM - Page 262

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Cisco ONS 15454 DWDM Reference Manual, R8.5
78-18343-02
Chapter 7 Reconfigurable Optical Add/Drop Cards
7.3.2 32WSS Block Diagram
Figure 7-7 32WSS Block Diagram
Aggregate optical signals that enter the EXP RX and COM RX port are processed in two ways: Add
channel/pass-through and optical splitter processing. The optical processing stages are shown in
Figure 7-8, which provides a detailed optical functional diagram of the 32WSS card.
EXP RX port
(In from other 32WSS
within the network element)
EXP TX port
(To the other 32WSS
within the network element)
DROP TX port
dropped channels
(To COM RX port
of 32DMX)
COM RX port
(In from preamplifier,
OPT-PRE, or OSC-CSM)
COM TX port
(To OPT-BST or
OSC-CSM)
115293
32 add ports
Add 1 Add 2 Add 32
Optical
splitter
Add channel
or pass-through
Wavelength
selective switch