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Cisco ONS 15454 DWDM Reference Manual, R8.5
78-18343-02
Chapter 7 Reconfigurable Optical Add/Drop Cards
7.5 32DMX Card
7.5 32DMX Card
Note See the “A.7.1 32DMX Card Specifications” section on page A-21 for hardware specifications.
Note For 32DMX card safety label information, see the “7.2 Safety Labels for Class 1M Laser Product
Cards” section on page 7-9.
The single-slot 32-Channel Demultiplexer (32DMX) card is an optical demultiplexer. The card receives
an aggregate optical signal on its COM RX port and demultiplexes it into to (32) ITU-T 100-GHz-spaced
channels. The 32DMX card can be installed in Slots 1 to 6 and in Slots 12 to 17.
7.5.1 32DMX Faceplate Ports
The 32DMX card has two types of ports:
• COM RX port: COM RX is the input port for the aggregate optical signal being demultiplexed. This
port is supported by a VOA for optical power regulation and a photodiode for optical power
monitoring.
• DROP TX ports (1 to 32): On its output, the 32DMX provides 32 drop ports (listed in Table 7-15 on
page 7-28) that are typically used for dropping channels within the ROADM node. These ports are
connected using four 8-fiber MPO ribbon connectors. The incoming optical signal to the
demultiplexer comes into the COM RX port. This input port is connected using a single LC duplex
optical connector.Each drop port has a photodiode for optical power monitoring. Unlike the two-slot
32DMX-O demultiplexer, the drop ports on the 32DMX do not have a VOA per channel for optical
power regulation. For a description of the 32DMX-O card, see the “5.4 32DMX-O Card” section
on page 5-16.
Figure 7-12 shows the 32DMX card front panel and the basic traffic flow through the ports.
Table 7-13 32WSS-L Card-Level Indicators
Card-Level Indicators Description
Red FAIL LED The red FAIL LED indicates that the card’s processor is not ready or that an
internal hardware failure occurred. Replace the card if the red FAIL LED
persists.
Green ACT LED The green ACT LED indicates that the 32WSS-L card is carrying traffic or
is traffic-ready.
Amber SF LED The amber SF LED indicates a signal failure on one or more of the card’s
ports. The amber SF LED also turns on when the transmit and receive fibers
are incorrectly connected. When the fibers are properly connected, the light
turns off.
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