7-19
Cisco ONS 15454 DWDM Reference Manual, R8.5
78-18343-02
Chapter 7 Reconfigurable Optical Add/Drop Cards
7.4.1 32WSS-L Faceplate Ports
7.4.1 32WSS-L Faceplate Ports
The 32WSS-L card faceplate has six types of ports:
• ADD RX ports (1 to 32): These ports are used for adding channels (which are listed in Table 7-12
on page 7-23). Each add channel is associated with an individual switch element that selects whether
the channel is added. Each add port has optical power regulation provided by a VOA.
• EXP RX port: The EXP RX port receives an optical signal from another 32WSS-L card in the same
NE.
• EXP TX port: The EXP TX port sends an optical signal to the other 32WSS-L card within the NE.
• COM TX port: The COM TX port sends an aggregate optical signal to a booster amplifier card (for
example, the OPT-BST card) 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 with drop channels to the
32DMX-L card, where the channels are further processed and dropped.
Figure 7-9 shows the 32WSS-L module front panel and identifies the traffic flow through the ports.
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