7-12
Cisco ONS 15454 DWDM Reference Manual, R8.5
78-18343-02
Chapter 7 Reconfigurable Optical Add/Drop Cards
7.3 32WSS Card
7.3 32WSS Card
Note See the “A.7.3 32WSS Card Specifications” section on page A-25 for hardware specifications.
Note For information 32WSS card safety labels, see the “7.2 Safety Labels for Class 1M Laser Product
Cards” section on page 7-9.
The two-slot 32-Channel Wavelength Selective Switch (32WSS) card performs channel add/drop
processing within the ONS 15454 DWDM node. The 32WSS card can be installed in the following pairs
of slots:
• Slots 1 and 2
• Slots 3 and 4
• Slots 5 and 6
• Slots 12 and 13
• Slots 14 and 15
• Slots 16 and 17
7.3.1 32WSS Faceplate Ports
The 32WSS has six types of ports:
• ADD RX ports (1 to 32): These ports are used for adding channels (listed in Table 7-9 on page 7-16).
Each add channel is associated with an individual switch element that selects whether that channel
is added. Each add port has optical power regulation provided by a variable optical attenuator
(VOA). The 32WSS has four physical receive connectors that accept multifiber push-on (MPO)
cables on its front panel for the client input interfaces.Each MPO cable breaks out into eight separate
cables.
• EXP RX port: The EXP RX port receives an optical signal from another 32WSS card in the same
network element (NE).
• EXP TX port: The EXP TX port sends an optical signal to the other 32WSS card within the NE.
• COM TX port: The COM TX (line input) port sends an aggregate optical signal to a booster
amplifier card (for example, OPT-BST) for transmission outside of the NE.
• COM RX port: The COM RX port receives the optical signal from a preamplifier (such as the
OPT-PRE) and sends it to the optical splitter.
• DROP TX port: The DROP TX port sends the split-off optical signal containing drop channels to
the 32DMX card, where the channels are further processed and dropped.
Figure 7-6 shows the 32WSS card front panel and identifies the traffic flow through the ports.
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